View allAll Photos Tagged Absorption
Its been a while but yesterday the sun was shining so out came the Infra Red cameras and Claire and i went for a stroll around Saltwell Park in Gateshead. The trees are all pretty much bare so i wasnt really feeling inspired and didnt take any shots but pulled off a sneaky detour to the Angel on the way home.... The Angel looked great soaking up the rays so i walked down one on the small gully's and took this 2 shot vertorama with my Sony F717 as the lens isnt wide enough to cram in the whole thing. I had my Hoya R72 & Hoya ND8 stacked on the camera which was in the Nightshot mode. This flips the IR Cut Filter (Hot Mirror) out of the way meaning with the right filter you get IR shots without any modding...
The weather seems to have turned and it was a pleasant sight seeing sunlight and a cracking orb like red sun drop just before... Come on Spring, i want to use these cameras more!! :D
Scheveningen/The Hague
May 2012
The Netherlands
Beachlife in the Netherlands
Ricoh GRD IV
Please do not reproduce or use this picture without my explicit permission.
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Following the absorption of Fylde Borough's Blue Bus Fleet, this Atlantean has been painted into Blackpool Transport livery.
BTS depot yard, 6th July 1999
Leiden
March 2012
The Netherlands
Urban life in the Netherlands
Ricoh GRD IV
Please do not reproduce or use this picture without my explicit permission.
If you ask nicely i will probably say yes, just ask me first!
If you happen to be in one of my frames and have any objections to this.
Please contact me!
All rights reserved
The Hague
The Netherlands
2013
Candid shots in and around the Public Transport in The Netherlands
Ricoh GRD IV
The Hague
The Netherlands
2013
Had my first no-coat-just-a-sweater-on-the-Grote-Markt-day-of-the-year with Mark and Ron
Ricoh GR Digital IV
Latest Blogpost: thecovertphotographer.wordpress.com/2013/03/04/leading-by...
This plot shows the changes in brightness and colour of the Sun as it approaches the horizon at sunset. The labels on the sequence of observations in the plot show the colour temperature of the sunlight through the sequence (eg 4150K for the first one). This can be compared with the CT value of the LED lamps you buy to illuminate your home.
The individual spectra can be mathematically modelled to give some information about the state and and content of the atmosphere.
Some more technical details are given in what follows.
+++++++++++++++++++++++
These measurements were made in Bath, UK on the evening of 22 March 2020. The conditions were clear with little haze but with some very light patches of high cloud.
The instrument used was a Sekonic C-7000 SpectroMaster fitted with a tubular shade over the cosine corrector that restricted the field-of-view to a diameter of 10.8° (full illumination) ramping down to zero at 21.2°.
The spectral irradiance was measured at the following apparent (refraction-corrected) solar altitudes calculated from the "NOAA_Solar Calculations_day" spreadsheet ( www.esrl.noaa.gov/gmd/grad/solcalc/calcdetails.html ) using the UTC time and the Latitude and Longitude of the location in Bath.
Observation sequence number__Apparent Solar Altitude (deg)
086_______________________10.3
087_______________________5.2
088 ______________________3.9
089_______________________2.6
090_______________________2.2
091_______________________1.8
They covered a range of Air Masses (AM) of 5.4 to 20.6 (calculated from the formula given in: Kasten, F., and A. T. Young. 1989. "Revised optical air mass tables and approximation formula" Applied Optics 28:4735–4738.
The graphic shows the measurements (thick coloured lines) on a logarithmic scale of spectral irradiance. The thin grey line show the Solar spectrum outside the atmosphere (peaking at 2 W/m^2/nm) and two extinction models with air masses corresponding to the apparent solar altitudes of observations 086 (pale green) and 089 (violet).
The extinction model incorporates Rayleigh scattering, aerosol scattering (with a default power-law slope (spectral index) of -1.3) and ozone absorption in the Hartley, Huggins and Chappuis bands. The fits are made using modest adjustments to the default values of the aerosol spectral index, the aerosol column density wrt to a 'standard atmosphere' (Allen, Astrophysical Quantities, 3rd edition, 1973) and the Ozone STP atmospheric depth of 3mm.
Note that other significant telluric (Earth atmosphere) absorptions are not included in this model, notably water vapour, molecular oxygen, the O2*O2 dimer (or Collisionally Induced Absorption, CIA) and nitrogen dioxide absorption in the blue part of the spectrum. The water and oxygen account for the three strong absorption bands longward of 670nm.
An interesting feature of the sequence is the increasing strength of the absorption band at ~570nm in the yellow part of the spectrum. This is due to the oxygen dimer (CIA) absorption which is dependent on both the oxygen column density AND the pressure — since two oxygens need to interact. Most of these absorptions therefore occur in the low atmosphere where the pressure is highest. There is also a weaker CIA band close to 630nm associated with, but broader than, the molecular oxygen absorption at that wavelength. (See the comment below).
The extinction model spectrum (thin violet line) starts to fall well below the observed spectrum (#089) below 450nm. This indicates the presence of significant multiple scattering in long paths through the low atmosphere, especially from aerosols. My simple model assumes single scattering.
For this gentle and relaxing photowalk in my district, Lyon, France, I brought along my French TLR SEMFLEX Standard 3.5 camera (see below for details) loaded with a never-tried yet film Svema FOTO 100 made in Ukraine. The backing paper is black with white numbering and signaling symbols are easy to read across the small red window of my SEMFLEX.
For all the frames, my SEMFLEX was equipped with the original SEMFLEX squared shade hood a SEMFLEX yellow filter x2. The film was exposed for 50 ISO to compensate the light absorption of the yellow filter. Metering was done using a Minolta Autometer III equipped with a 10° finder for selective measures privileging the shadow areas or an opale dome for incident light integration.
View n° 10: 1/100s f/8 focusing @ 50 m, SEMFLEX Yellow filter x2
Rue Bleton (Ecole Providence des Trinitaires), May 10, 2025
69004 Lyon
France
After the view #12 exposed, the film was fully rolled to the taking spool and was developed in a Paterson tank with a spiral adapted to the 120-format film. 500 mL of Adox Adonal (Agfa Rodinal) developer were prepared at the dilution 1+25 and the film processed for 7 min at 20°C. The first view was shifted by about two frames leading to only 10 views on the film. This is clearly due to a quality problem. The backing paper was improperly positioned during the spooling of the film.
Digitizing of the remaining 10 frames, was made using a Sony A7 camera (ILCE-7, 24MP) held on a Minolta vertical macro stative device and adapted to a Minolta MD Macro lens 1:3.5 f=50mm. The light source was a LED panel (approx. 4x5') CineStill Cine-lite fitted with film holder "Lobster" to maintain flat the 70mm films.
The RAW files obtained were inverted within LR and edited to the final jpeg pictures without intermediate file. They are presented either as printed files with frame or the full size JPEG together with some documentary smartphone pictures..
About the camera and lenses :
My French Semflex TLR year 1959-1960 is equipped with triplet 1/3.5 f=75mm SOM Berthiot lenses as descripted bellow.
The SEM company ("Société des Etablissements Modernes de Mécanique") was founded in France by Paul Royet in 1946, in the small city of Aurec near Saint-Etienne (Loire). The SEM camera's was known essentially for the TLR Semflex that were a great commercial success in France until the 70's. The camera's are constructed around an injected aluminum alloy chassis, very resistant and rigid permitting precise optical alignments. The focusing mechanism is made of a cam system like the Rolleiflex giving an accurate and smooth focusing. SEM constructed their own shutters called Orec with 5 leaves capable of the 1/400s to 1s with B.
Semflex received in majority French optics Berthiot with 3 or 4 lenses (Tessar type). Some camera's were also mounted with Angénieux lenses.
Semflex were trusted TLR camera's used by amateurs and for professional purposes. From 1949 to 1976, 171.000 Semflex were produced in many different types and versions.
My Semflex in a middle grade version Standard 3.5 type-10 (1959-1960). It was the last version mounted with the 3-lens SOM Berthiot 1:3.5 f=75mm. I got the camera with set of accessories and several documents including the user manual of the Semflex Standard 4.5 versions. The accessories include a leather SEM ever-ready bag, a Semflex push-on shade hood, a Semflex push-on yellow filter x2 in its original box, and close-focusing lenses. The 1D one is constructed with a prism for the finder lens that compensates the parallax in the zone 1m to 0.5m.
The decorative ring around each lenses can also receive push-on accessories in 36mm diameter as the FOCA or Leitz 36mm filter series. I adapted two protective lens caps from Kodak film canister snapped covers.
New to Truronian 4/2001 and remained so until absorption into the First Group.
Here she is heading down Station Road, having come off working the 924 college service St Austell - Truro.
The Hague
March 2012
The Netherlands
The obligatory derelict bike shot..
(can't escape them here in The Netherlands)
Urban life in the Netherlands
Ricoh GRD IV
Please do not reproduce or use this picture without my explicit permission.
If you ask nicely i will probably say yes, just ask me first!
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Ultimecia uses her ability to compress time to try and become omnipotent through the absorption of all time, space, and existence. She can invade and control an individual's body and mind both internally and externally. Ultimecia can reach into a person's mind to steal or give life to thoughts, knowledge, and magic.
A short series of 6 photographs taken at the Centre Pompidou.
Une petite série de 6 photos prises au Centre Pompidou.
If you recognise yourself in these photos and prefer they are not here, just let me know (or if you would like a copy of the photo).
Si vous vous reconnaissez dans cette photo et préfériez que la photo ne soit pas publiée, dites le moi (ou bien si vous aimeriez en avoir une copie).
Amsterdam
The Netherlands
2012
Candid shots in and around the Public Transport in The Netherlands
Ricoh GRD IV
Once a bracket for a bird feeder. Now it feeds a hungry Live Oak tree. No rescue, no freedom, no release. And no chance of parole...
The Hague
May 2012
The Netherlands
A rather idyllic church garden, not very well known to the general public, although it has been busier in the last few years. Used to be a preferred spot for junkies and dealers for hustling and using. Now its a place for lunch, conversation and the occasional joint.
Urban life in the Netherlands
Ricoh GRD IV
Please do not reproduce or use this picture without my explicit permission.
If you ask nicely I will probably say yes, just ask me first!
If you happen to be in one of my frames and have any objections to this.
Please contact me!
Please no glossy awards, scripted comments and big thumbnails back to your own work.
I will remove them...
Improved insole; premium, 3x better moisture absorption, 100% better energy absorption
•Standard: EN ISO 20345:2011 S5 CI SRC
•Resistance: minerals, animal and plant oils and fats, disinfectants, fertilizer, solvents, various chemicals
•Lining; antibacterially treated, recognisable Dunlop red
A Sri Lankan girl drawing at an arts exhibition.
"Every child is an artist. The problem is how to remain an artist once we grow up." - Pablo Picasso.
Alexander bodied X reg Dennis Dominator, beautifully restored internally and wearing a commemorative livery celebrating Doncaster Corporation's undertakings prior to South Yorkshire PTE's absorption.
Metro
Beijing, China
July 2012
Candid shots in and around Public Transport
Ricoh GRD IV
Please do not reproduce or use this picture without my explicit permission.
If you ask nicely I will probably say yes, just ask me first!
If you happen to be in one of my frames and have any objections to this.
Please contact me!
Please no glossy awards, scripted comments and big thumbnails back to your own work.
I will remove them...
This is an unusually rich view of the Earth's telluric absorption spectrum obtained using the addition of many spectra of the underside of a dark thundercloud obtained in Munich in August 2014. More details of these observations can be seen at:
www.flickr.com/photos/bob_81667/49778550932/in/album-7215...
The Solar altitude at the time was 45° and so the normal telluric spectrum of the sky would be weak and rather unimpressive. In this case however, the light reaching the spectrometer had experienced a long path through the towering cloud and had scattered many times from water drops, other aerosols and air molecules with much of the path happening at low altitudes where the pressure is highest.
Such a random walk through the cloud can accumulate a long pathlength's worth of travel through a medium that will contain a high proportion of absorbers and scatterers such as water that predominate at low altitudes.
One species that will be under-represented is ozone (O_3) because this gas is only present in any quantity above about 12km — although some will be produced locally by lightning flashes.
Another oxygen 'molecule' however will be over-represented since its density depends on the square of the gas pressure. This is tetra-oxygen (O_4) which is a transitory (very short-lived) association of two oxygen molecules that allows the formation of spectral bands from normally electric dipole forbidden transitions. These O_4 bands are called Collisional Induced Absorptions (CIA). The short lifetime of these collision interactions results — basically because of Heisenberg's Uncertainty Principle — in spectral lines being substantially broadened. This process was only discovered in the mid-20th century and the full quantum-mechanical explanation has only recently been explored by Tijs Karman and co-workers in the Netherlands (Karman, T., Koenis, M.A.J., Banerjee, A. et al. Publisher Correction: O2−O2 and O2−N2 collision-induced absorption mechanisms unravelled. Nature Chem 10, 573 (2018). doi.org/10.1038/s41557-018-0063-2).
These distinctive absorption bands were seen by the 19th century observers such as Ångström and others at sunset and sunrise but, although they realised that the bands behaved differently from those due to water vapour and the normal O_2 molecule, they were not able to identify them.
The green and violet lines in the plot show processed versions of the observed cloud spectra which have been normalised by a process described in the previous posts referred to above. This results in a flat continuum which is free from all of the absorptions in the Sun's atmosphere: the Fraunhofer lines have gone.
The thin violet spectrum contains all of the telluric features including the complex spectrum of nitrogen dioxide (NO_2) which occupies the blue and green part of the spectrum only. The thick green line has the NO_2 spectrum removed assuming a column density of 2.5e17/cm2. This rather high density is probably predominantly the result of the formation of NO_2 in lightning flashes and not necessarily by vehicle exhaust pollution. Cross-section data for NO_2 can be obtained from:
www.frontiersin.org/articles/10.3389/fenvs.2019.00118/full
A model of the computed O_4 spectrum corresponding to a column of 2e44 cm^5 molecule^-2 using the HITRAN database ( www.sciencedirect.com/science/article/pii/S0022407311003773 ) is shown as the dashed red line.
In this case the telluric spectrum is dominated by the the bands of water vapour whose strength increases towards the infrared. These are overtones (harmonics) of the fundamental vibrations of the water molecule that include symmetric and asymmetric stretch of the two hydrogen atoms with respect to the central oxygen, the oscillation of angular separation of the hydrogens around a mean angle of about 105° and librations around three axes (see: www1.lsbu.ac.uk/water/water_vibrational_spectrum.html ). These higher harmonics cause depths of a metre or so of clear water to appear blue. See my discussion of water spectra at: www.flickr.com/photos/bob_81667/6309336354
The spectra also include emission from some lightning flashes (the spectra were selected to avoid strong lightning flashes) which have not been marked but can be identified by looking at:
www.flickr.com/photos/bob_81667/4951867947/
Note that there is no visible sign of ozone which only dominates the spectrum near twilight.
I have included on the plot overlays of two of the maps of the atmospheric spectrum made by Ångström. The top one, made by Ångström and Thalén is taken from the book "Spectrum Analysis" by H. Schellen published in 1872 and reproduced by the Scholarly Publication Office of the University of Michigan University Library (which I gratefully acknowledge as the source) as part of Plate VI.
The second map (left-right mirrored) is from the same volume as Fig. 95. While these two maps are very similar, there is a significant change in the position of the blue absorption band marked as Greek(lambda) in the lower map. What is apparently the same band appears shifted some 14nm to the blue. This band, which appears strongly in my cloud spectrum at a wavelength consistent with the lower map, is hard to see in a visual spectroscope (I have yet to observe it!) and one can perhaps excuse Ångström — who is renowned for his exquisite precision — for getting it wrong the first (?) time. Remember that he did not have access to the digital manipulation of spectra that I have now! He had to disentangle the telluric spectrum from that of the sun by eye, a task that is considerably easier in the red than in the blue.
Since all of these telluric features result from transitions in molecules, they tend to be more frequent and stronger towards longer wavelengths, leaving the visible and ultraviolet spectrum dominated by atomic processes. It is perhaps remarkable that some of the most obvious features to our eyes are due to the somewhat esoteric and only lately understood process of CIA. Indeed, the yellow/orange part of the spectrum seen through a spectroscope is dominated by an almost transparent region between about 580 and 590nm that is bounded on the blue side by the strongest O4 band at 576nm and, on the red side, by "The Rainband" of water from 590 to just over 600nm. This leaves what almost appears as a yellow/orange emission band in the region of the spectrum to which our eyes are most sensitive.
Another interesting telluric spectral feature can be see at the violet end of this spectrum, again enhanced in the cloud spectrum due to the long high pressure pathlength of the light. The majority of scatterings of photons by molecules or aerosols in the atmosphere are 'elastic', ie. do not involve a change of wavelength between the incident and the scattered photon. A small fraction are however 'inelastic', meaning that some energy is transferred from the photon to produce internal vibrations in the molecule. [Note that this process can happen in reverse but that is very rare and most of the outgoing photons are redder that the original one.]
In the case of the solar spectrum scattered in the Earth's atmosphere, especially in clouds, a small fraction of the photons at each wavelength will be Raman scattered towards longer wavelengths. If the Solar spectrum was perfectly flat, this would make little difference. When there are strong, deep absorption lines however, more light will be scattered into an absorption line than out of it. This will result the spectrum of skylight having slightly shallower lines than the Fraunhofer absorption lines in in the Sun. See the discussion of the phenomenon in:
www.researchgate.net/publication/253321609_The_Ring_Eect_...
This process, called Raman scattering after the Indian Nobel Laureate in physics (1930) who discovered it with his student K. S. Krishnan, is now very widely used in science, technology and forensics to study and identify materials of many sorts. When we remove the Solar lines by dividing our cloud spectrum by the Sun, we can see the strong lines appearing in apparent 'emission'. The Ca II H & K lines, being the strongest is the spectrum, offer the best chance of seeing the effect appearing in our plot.
This nice example of a telluric spectrum gives an idea of the kind of spectrum that we might hope or expect to see from an exoplanet in the 'habitable zone' orbiting another sun-like star when our instruments allow us the capability to see this level of detail (which may take a while!)
- sports car
- street-level parking lot
- artificially colored mulch
- plastic tarp preventing absorption of rain water
gimme a break.
Amsterdam
June 2012
The Netherlands
Urban life in the Netherlands
Ricoh GRD IV
Please do not reproduce or use this picture without my explicit permission.
If you ask nicely I will probably say yes, just ask me first!
If you happen to be in one of my frames and have any objections to this.
Please contact me!
Please no glossy awards, scripted comments and big thumbnails back to your own work.
I will remove them..
Two versions of a sketch of the visual spectrum of the setting Sun showing the prominent telluric lines towards the red end.
The bottom spectrum shows lines in black and diffuse bands in grey as they would appear in the spectroscope.
In the top spectrum, the telluric features are coded in blue (for water vapour absorption), red (for diatomic oxygen) and brown (for tetra-oxygen).
A few of the strong Solar Fraunhofer lines are shown in black and marked with their designations (C – h) in black letters.
Greek(alpha) marks the combination of ordinary diatomic oxygen absorption and a broader contribution from the collisionally induced transition in the transitory association of two oxygen molecules called tetra-oxygen. Greek(delta) marks the strongest visible tetra-oxygen absorption at ~576nm.
'r' marks the water absorption that was known in the late nineteenth century as The Rainband since there were attempts to use it as a predictor of rain.
These three features along with the water band that encompasses the H-alpha line 'Fraunhofer C' are the most visually prominent telluric features.
I find it interesting that two of these features are associated with an absorption process that was not identified until 1949 ( en.wikipedia.org/wiki/Collision-induced_absorption_and_em... ).
The 19th century scientists had appreciated that these two bands behaved differently from the water absorptions and became stronger more rapidly as the Sun approached the horizon. However, they had no idea what caused them.
The yellow gap between r and delta appears as a very prominent structure in the visible spectrum of the daytime sky, particularly at dusk and dawn.. The yellow almost looks as if it is an emission band superimposed on the Solar spectrum!
The coloured background spectrum in these illustrations is derived from my own photograph, taken with a full-spectrum digital camera, of a dispersed quartz-halogen lamp using a slit and a 60° glass prism.
Scheveningen/The Hague
May 2012
The Netherlands
Beachlife in the Netherlands
Ricoh GRD IV
Please do not reproduce or use this picture without my explicit permission.
If you ask nicely I will probably say yes, just ask me first!
If you happen to be in one of my frames and have any objections to this.
Please contact me!
Please no glossy awards, scripted comments and big thumbnails back to your own work.
I will remove them...
Laser pointer hits a camera body.
WEBSITE: www.alexkayvisuals.com
BUY A PRINT: hello@alexkayvisuals.com
Alias: Moonlight
Real Name: Hailee Carreon
Powers: Telekinesis, energy blasts, force field creation, flight, enhanced strength, enhanced reflexes, enhanced speed, self-healing
*Her powers are derived from moonlight absorption. She becomes more powerful if under direct moonlight, and if she goes too long without being exposed to moonlight, she loses her powers
Earth: 304
Origin: After her father was kidnapped, Hailee learns that he was kidnapped because he used to be the city’s hero, and someone had found his identity. Without her dad, Hailee has nothing. Her own mother hates her, and she doesn’t get along with her brother. She now only has one person she can lean on, her boyfriend, Nick. She goes to Nick for comfort, but after a while, he gets fed up with it, and tells her she has too many emotional problems for him to have to deal with, he’s not her therapist. So he breaks up with her. Now truly alone with nothing but an emotionally abusive mother, Hailee chooses to run away from home. She decides that she wants to try and find her dad, holding out hope and choosing to believe that he’s still alive. She teaches herself how to use her father’s bo-staff, and does everything she can to track him down. While following a lead on her father, she tries to break into a crime gang’s hideout, but fails and nearly gets herself killed. But she’s saved by a mysterious vigilante, who offers to help her. He reveals his identity to her as a young man named Trevor. Hailee almost immediately fell for this kindhearted vigilante. Trevor brings Hailee back to his home, where he and his mentor, Dick, teach her to fight, and offer to help her find her father. Dick eventually leaves Trevor and Hailee alone, and they finally show their feelings towards one another. They protect the city as a strong duo of vigilantes together. One night, Hailee had been searching for her father, and the city suddenly blew up. In attempting to free herself from the destruction, Hailee finds a man, and goes to help him. This man turns out to be her father. She had finally found him at last. She desperately tries to save him, but can’t get to him. He tells her to leave, as the building they’re in will soon fall. Hailee hesitantly obeys her father’s orders, and narrowly escaped the collapsing building. When she steps outside, the moon begins to shine brightly on her, and she notices her injuries are beginning to heal. She realized that not only is she using her father’s staff, but she’s inherited his powers and connection to the moon too. She was crushed at the lost of her father, yet satisfied that she finally got closure, and happy to know that she could continue his legacy.
The Hague CS
March 2012
The Netherlands
Candid shots in and around the Public Transport in The Netherlands
Ricoh GRD IV
Please do not reproduce or use this picture without my explicit permission.
If you ask nicely I will probably say yes, just ask me first!
If you happen to be in one of my frames and have any objections to this.
Please contact me!
Please no glossy awards, scripted comments and big thumbnails back to your own work.
I will remove them...
All rights reserved
For testing on film my newly arrived exceptional French 35mm camera FOCA Universel RC (see below for details about this rare and fascinating camera), I went for photowalk in my district, Lyon, France. The weather was very sunny and the outside temperature warm (32°C).
Testing a new collection camera is always is great moment. We know the camera only from its blank manipulations but the real judge is the test film on the field, the camera exposed to outside elements in real photography operations. Some possible problems as light leaks or slight unpairing of the shutter curtains, will be only detected on film.
I used the camera with its ever-ready bag and I removed the front part for operation. In particular, I previously checked very carefully the exact condition of the thin leather neck strap. Old leather may crack and it would a shame and a nightmare to drop such camera. The OPLAR standard lens 1/:2.8 f=5cm was equipped with a yellow filter FOCA x2.5. The OPLAR lens fro the FOCA’s only accept push-on filter (42.5mm in this specific case). A vintage Genaco cylindric stainless-steel shade hood conceived for a 5cm focal length was also used all along the session.
The test film was a 36-exposure Fomapan 100. Expositions were determined for 50 ISO to compensate the absorption of the yellow filter. Metering was achieved using a Minolta Autometer III lightmeter fitted with a 10° finder for selective metering privileging the shadow areas.
View Nr 34: 1/50s f/4 focusing @ 3 m - Yellow filter
Collection car Volvo P1800, July 5, 2025
Boulevard de la Croix Rousse
69004 Lyon
France
After completion at view #39, the film was rewound normally and processed using 350 mL of Adox Adonal developer (identical to the original Agfa Rodinal in its formula of 1891) prepared at the dilution 1+50 for 9 min at 20°C.
Digitizing was made using a Sony A7 camera (ILCE-7, 24MP) fitted to a Minolta Auto Bellows III with the Minolta slide duplication accessory and Minolta Macro Bellow lens 1:3.5 f=50mm. The diffuse light source was a LED panel CineStill Cine-lite.
The RAW files obtained were inverted within the latest version available of Adobe Lightroom Classic (version 14.4) and edited to the final jpeg pictures without intermediate file. They are presented either as printer files with a frame or the full size JPEG's together with some documentary smartphone color pictures.
As a result, the test film shows that this FOCA Universel RC is in perfect conditions and could be used normally with confidence.
About the camera and its history :
Among the French 35mm camera produced by « Optique & Précision de Levallois S.A. » from 1945 to the middle of the 60’s, the FOCA Universel « RC » is likely the most captivating ever produced in France at that time.
The camera was the last development of the FOCA, sometime called the « French Leica » because the optical and mechanical precision matched and even surpassed the original thread-mount Leica. Far before the first Leica M (the M3 in 1954) O.P.L. developed a bayonet-mount FOCA in 1948 called the FOCA « Universel ». Seeing the incredible viewer and range finder of the Leica M that is likely the most sophisticated system even engineered, O.P.L. released lately a great improvement of the FOCA with a novel collimated, parallax auto-corrected, of a fully original and different design of the Leitz system.
The FOCA Universel RC It is a rare camera that only appears for time to time on the collector market, being only produced to a bit more than 2000 overall units in the years 1962 and 1963, just before O.P.L. decided to quit the camera production and returned to other instrumental optical production. O.P.L. soon merged with SOM Berthiot and today can be found still in the industrial filiation of SAFRAN group, the French leader company for designing and producing system for aerospace appliances. The plant where the FOCA's were produced still exists in an almost original form in Châteaudun, Eure-et-Loir, France.
I got my first FOCA URC unit two years ago (Sept. 2023, flic.kr/s/aHBqjAV6Dg) that is a standing and emotional piece of my small camera collection.
I got this one from an apparently ignored auction on the French eBay. We were only two biders in the last 5s and I won the auction not far away to the initial price. The camera was fully revised, with new shutter curtains, a new delayed shutter release mechanism. The serial number indicated a year-1962 production starting with 1.000.000, closed to my first FOCA URC. The camera works in every functions like on its Day-1! The camera came with a late version 1962 of the OPLAR 1:2.8 f=5cm standard collapsible lens of excellent quality, the FOCA UCR dedicated ever-ready leather bag with the original leather neck strap in good condition.
The original O.P.L. camera warranty and a registration postal card fortunately followed the life of the camera, indicating that this beautiful FOCA Universel RC was sold to its first owner on August 9, 1963 by the official FOCA dealer « ROYAL-PHOTO, Photo-Ciné-Magnétohone », 42, rue Vignon, Paris 9ème arrondissement, France, today a Weill fashion shop at the same address. The address of the owner also still exists with the original Parisian building in place, Boulevard Poniatwski, next to the Métro station « Porte de Charenton », Paris 12ème arrondissement.
The shown original FOCAL Universel RC user manual is the one that came with my other FOCA URC camera.
These information pushed me to question what were the news in France on this Friday, August 9, 1963… France was mainly on vacation, by an exceptional wet and fresh weather that wasted many French citizens holidays. The whole national radio information bulletin is still available online here :
www.ina.fr/ina-eclaire-actu/audio/phd94020557/inter-actua...
Inter actualités de 7:15 PM du 9 août 1963
Inter actualités de 7:15 PM - 09.08.1963 - 29:58 - audio
Ina.fr (English translated)
- Headlines - Jean-Pierre ELKABBACH: The Marseille and Bordeaux sailors' strike ended this morning, but nothing has been resolved in Le Havre. Many heads of state and government sent messages of condolence to President Kennedy for the death of his third child shortly after birth. Other headlines in the newspaper (2'20"). - André Brière: It does not appear for the moment that work will resume in Le Havre. Mr. Pisani would agree to the distillation of 2 million hectoliters of wine, which is clogging up the market, but a subsidy would be required. Discontent is growing among winegrowers in the south, whom the population accuses of various acts of sabotage in the Narbonne region. Complaints from winegrowers in the southwest. Farmers scattered 5 tons of potatoes yesterday in the streets of Douai (3'30"). - Jacques Behingue: Secretary of State Dean Rusk will return to Washington from Moscow on Monday. He will give a presentation to senators on the Moscow Treaty. This morning, Dean Rusk was received by Mr. Khrushchev on the shores of the Black Sea in Cagra. This evening, Mr. Dean Rusk will host a dinner in Moscow at the US Embassy. Tomorrow, he will be in Bonn, received by Mr. Adenauer. The Moscow Treaty was signed by 11 new countries, with Japan set to sign next Wednesday. North Vietnam has refused to sign. Mr. MAC MILLAN declared that underground tests, which are not prohibited, are not of great importance because nuclear weapons can only be modified following atmospheric tests (4'40"). - Gérard TAVERA: Two years after Bizerte, France and Tunisia signed an agreement this morning that includes two chapters: the first concerns the 30,000 Tunisian workers living in France, the second concerns economic cooperation. This agreement resolves the economic problems concerning Bizerte. After an African trip, Mr. BEN BELLA returns to Algiers. In Accra, Mr. BEN BELLA declared that the next session of the UN would be an African session. Yesterday, AIT AHMED violently criticized the FLN party and the constitutional project. All French newspapers reproducing Mr. AIT AHMED's Declaration were seized this morning upon their arrival in Algiers. Since July 16, in Morocco, leaders of the UNFP are detained in rather precarious conditions following the "plot" against the monarchy (2'25"). - André Brière: before the State Security Court, opening of the trial of the station commander, among those who are bringing a civil action is Mr. Jean OUDINOT, former director of RTF in Algiers (1'05"). - Victor VRAMANT: the body of Doctor WARD was cremated this morning, only members of Doctor WARD's family attended the funeral ceremony. The weather in France and Europe. It is raining everywhere in France except on the Côte d'Azur. Road accidents (2'). - Jean-Pierre ELKABBACH: Gaston GELIS, former director of "Paris-journal" died in a road accident in Seine et Marne (1'). - Victor VRAMANT: a major drug trafficker was arrested at Orly. In Italy, following the arrest of a repeat offender, a 22-year-old American woman was arrested for drug trafficking (1'30"). - Jacques CHABOT: Charles TRENET has not yet been released; he would be released tomorrow morning after payment of bail (25%).
WEATHER:
SOURCE: www.meteo-paris.com/chronique/annee/1963
June 14, 1963: a particularly cool day - it was no more than 12°C in Rouen, 13°C in Paris, St. Quentin, Lille, Le Havre, and Caen.
August 1963 was autumnal because it was very cool and very wet. On August 3, 1963, torrential rains caused catastrophic flooding and the death of eight people in the Lyon region. On August 4, 1963, 400 houses were also flooded between St. Jean de Luz and Le Boucau (Pyrénées Atlantiques). On August 17 and 18, 1963, it was no more than 10°C. and 15°C in the northern half - many summer visitors leave early - it's snowing in the mountains and the harvest is very difficult.
Historical landmarks of the year 1963
August 28, 1963: Martin Luther King leads the march on Washington. October 11, 1963: Jean Cocteau and Edith Piaf die within hours of each other. November 22, 1963: President J.F. Kennedy is assassinated in Dallas. The yé-yé movement is in vogue - the debut of Françoise Hardy and the politically engaged singer, Jean Ferrat.
Yesterday I was lucky enough to have free tickets to the Braque expo at the Grand Palais. I didn't know this artist before and was very happy to discover his work which has a very wide variety of styles. If you have the opportunity, go discover!
Having just done the series of 6 photos where there was indifference also, it was interesting to see yesterday that everyone was absorbed! I've decided to do this series in black and white to focus on the people rather than the art. However, I'd definitely recommend this artist to you :)
Hier j’ai eu la chance de pouvoir aller gratuitement à l’expo Braque au Grand Palais. Je connus pas cet artiste et fut heureuse de découvrir son travail qui a changé en plusieurs styles très différents tout au longue de sa vie. Si vous avez l’occasion, découvrez-le ! (Demain c’est le dernier jour au Grand Palais.)
Puisque j’ai fait très récemment cette petite série « immersion et indifférence » j’étais très sensible aux autres visiteurs … et cette fois-ci tout le monde était immergé ! J’ai décidé de montrer ces photos en noir et blanc car j’ai voulu mettre en valeur les personnes et non pas l’art. Mais je vous recommande vivement cet artiste :)
If you recognise yourself in these photos and prefer they are not here, just let me know (or if you would like a copy of the photo).
Si vous vous reconnaissez dans cette photo et préfériez que la photo ne soit pas publiée, dites le moi (ou bien si vous aimeriez en avoir une copie).
Tips to avoid a hangover
Follow these tips to keep hangovers at bay:
Don't drink on an empty stomach. Before you go out, have a meal that includes carbohydrates (such as pasta or rice) or fats. The food will help slow down the body's absorption of alcohol.
Don't drink dark-coloured drinks if you've found that you're sensitive to them. They contain natural chemicals called congeners (impurities), which irritate blood vessels and tissue in the brain and can make a hangover worse.
Drink water or non-fizzy soft drinks in between each alcoholic drink. Carbonated (fizzy) drinks speed up the absorption of alcohol into your system.
Drink a pint or so of water before you go to sleep. Keep a glass of water by the bed to sip if you wake up during the night.
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The morning after
If you wake up the next morning feeling terrible, you probably didn't follow this advice. Although there are no real cures for hangovers, there are ways to ease the symptoms.
Treatment involves rehydrating the body so it can deal with the painful symptoms, though the best time to rehydrate is before going to sleep.
Over-the-counter painkillers can help with headaches and muscle cramps. Paracetamol-based remedies are usually preferable, as aspirin may further irritate the stomach and increase nausea and sickness.
Sugary foods may help you feel less trembly. In some cases, an antacid may be needed to settle your stomach first.
Bouillon soup, a thin vegetable-based broth, is a good source of vitamins and minerals, which can top up depleted resources. Its main advantage is it's easy for a fragile stomach to digest.
You can replace lost fluids by drinking bland liquids that are easy on the digestive system, such as water, soda water and isotonic drinks (available in most shops).
"Hair of the dog" – drinking more alcohol – does not help. Drinking in the morning is a risky habit, and you may simply be delaying the appearance of symptoms until the alcohol wears off again.
If you've had a heavy drinking episode, hangover or not, doctors advise that you wait at least 48 hours before drinking any more alcohol to give your body tissues time to recover.
Sometimes, of course, a hangover makes that advice easier to follow.
Health Benefits of Bananas
Fight infections
Anti-diarrheal (green bananas)
Energy booster
Curb sugar cravings
Reduce stroke risk
Maintain regular heartbeat
Ease hangovers
Fight depression and anxiety
Boost circulation
Prevent kidney cancer
Fight obesity
Suppress prostate enlargement
Ease heartburn
Prevent ulcers
Enhance absorption of nutrients
High in phosphorus
Lessen diabetes risk
Protect skin from UV damage
Lower blood pressure
Anti-inflammatory
Reduce menstrual pains
Relieve itches (inside peel)
Help deliver oxygen to the brain
Ease nicotine withdrawal
Dashilan, Beijing
July 2012
China
Urban life
Ricoh GR Digital IV
Please do not reproduce or use this picture without my explicit permission.
If you ask nicely I will probably say yes, just ask me first!
If you happen to be in one of my frames and have any objections to this.
Please contact me!
Please no glossy awards, scripted comments and big thumbnails back to your own work.
I will remove them..
Den Haag
The Netherlands
2013
Dijsselbloem, Dutch Minister of Finance and head of the Eurogroup
Urban life in the Netherlands
Ricoh GR Digital IV
Schwarz: Bezeichnung der Farbempfindung, die entsteht wenn kein Farbreiz wahrgenommen wird.
Schwarz ist die Absorption aller Spektren des Lichtes. Abwesenheit von sichtbarem Licht jeglicher Wellenlänge - und somit die Abwesenheit von Farben.
Schwarz ist eine unbunte Farbe.
Die Buntheit der unbunten Farben ist Null.
Durch verschiedene Helligkeitsstufen des Unbunt ergeben sich die Schattierungen von Schwarz über Grau bis Weiß.
Pigmente und Färbemittel, die mehr Licht absorbieren als reflektieren ERSCHEINEN schwarz.
2008 wurde die bisher schwärzeste Materie der Erde geschaffen - sie reflektiert nur .045 % Licht
Part of: "An Exercise: Fools Tower, One Thousand and One Sights ~ Narrenturm Tausendundeine Ansichten, eine Übung" I asked for learning - he does not find it worth the effort to answer. / Narrenturm Farben - Narrenturm ungezählt
Originalfoto (Narrenturm): DMC-G2 - P1760446 - 2014-02-11
#red #rot #schwarz #black #weiß #white #lieblingsfarbe #stencil #schablone #schnittmuster #sewingpattern #schnitt #schneiden #gugelhupf #rosine
Yesterday I was lucky enough to have free tickets to the Braque expo at the Grand Palais. I didn't know this artist before and was very happy to discover his work which has a very wide variety of styles. If you have the opportunity, go discover!
Having just done the series of 6 photos where there was indifference also, it was interesting to see yesterday that everyone was absorbed! I've decided to do this series in black and white to focus on the people rather than the art. However, I'd definitely recommend this artist to you :)
Hier j’ai eu la chance de pouvoir aller gratuitement à l’expo Braque au Grand Palais. Je connus pas cet artiste et fut heureuse de découvrir son travail qui a changé en plusieurs styles très différents tout au longue de sa vie. Si vous avez l’occasion, découvrez-le ! (Demain c’est le dernier jour au Grand Palais.)
Puisque j’ai fait très récemment cette petite série « immersion et indifférence » j’étais très sensible aux autres visiteurs … et cette fois-ci tout le monde était immergé ! J’ai décidé de montrer ces photos en noir et blanc car j’ai voulu mettre en valeur les personnes et non pas l’art. Mais je vous recommande vivement cet artiste :)
If you recognise yourself in these photos and prefer they are not here, just let me know (or if you would like a copy of the photo).
Si vous vous reconnaissez dans cette photo et préfériez que la photo ne soit pas publiée, dites le moi (ou bien si vous aimeriez en avoir une copie).