View allAll Photos Tagged Calibration
Me having coffee with my trusty Leica M3 DS after it was recalibrated by the amazing guys at Aperture Photographic, London. I think that they are probably not the cheapest but they go the extra mile when it comes to service.
For example I have not used my Leica Summicron 50mm f2 v5 (per Ken Rockwell)(but i'm advised it is an v4) for a long time as I thought it was mis-calibrated. Such a shame as it is the perfect 50mm in terms of size/aperture ratio so I miss it. I asked them to test it and they got sharp photos at f2 in front of me. I test and blurry. We diagnosed that I shoot at .68mm on the lens so it was always soft. At 0.8m it is perfectly sharp. Super happy. As I returned the Zeiss Sonnar 50mm I will now use the Cron 50 instead of the 50DR on the M3. Cost to 'fix' the lens. Nil. :)
Photo taken at Camera Cafe - f2.8, 1/8, shutter cable with camera resting on the table/handheld
Hasselblad 501C + Zeiss Planar 80mm f2.8 + 21mm extension tube + Fomapan 100@400
Xtol 300:Water 700, 10mins, v800 scan
Some pre Storm Francis mixed dot spots:
On the left and using call-sign 'Recon 22' Army Air Corps Leonardo Wildcat AH.1 ZZ382 passes through Shoreham's overhead
On the right and out of Farnborough, French registered Pilatus
PC-12 F-HGET passes overhead at 25,000 feet
Bottom, Flight Calibration Services Piper Navajo Chieftain G-FCSL turns downwind to land back at homebase Shoreham
Main frame:
Out of Oxford's Kidlington Airport, Portugese registered Global Express CS-RBN trails overhead as she passes through 44,000 feet to cruise at 45,000 as 'JME508N'
276A3117, 276A3102, 276A3118 & 276A3108
Master Bombardier Annick Vallières, student on the Gun Area Technician Supervisor (GATS) course practices her calibration on a Theodolite T16 at the 5th Canadian Division Support Group (5 CDSG) Gagetown, in Oromocto New-Brunswick, February 1, 2017.
Photo: Cpl Geneviève Lapointe Tactics School, 5th Canadian Division Support Group Gagetown
GN04-2016-0153-022
Yay, my daughter is becoming more cooperative which is fun for me (: I talk to her while I take pictures, so maybe that is making a difference. I really liked this image (on my laptop) - I love how her eyes came out and the hair.
I know she is a bit light on the left - but there are details there. I am experimenting with something lighter than the usual. Did levels, smart sharpening and color adjustments to bring out the color.
Strobist info/and processing: SU-800 trigger and SB-800 on right to fill out shadows, used TTL +1.0.
I am still struggling with color space issues after converting to CS3 -so it looks best in safari/omniweb browsers (and on my just calibrated laptop) oh well - one of these days...color will be consistent -- and of-course help and suggestions are welcomed and appreciated.
Reg: G-VNAV photos
Aircraft: Diamond Aircraft DA-62
Airline: Flight Calibration Services (FCS)
Serial #: 62.130
No calibration frames, test process combining all 3 cameras: QHY268M + Chroma 3nm; QHY294M + Antlia 3.5nm; AA26C + ALP-T Dual NB. Multiple hours and sessions.
Still a slight difference in color between browsers - safari/omniweb and firefox/camino/explorer (non-managed) on my laptop. Color managed browsers show more vivid magenta and greens while non manged browsers are less vivid. My current workflow is color profile/calibrated at Gamma 2.2 and a native white point (about 65K) with a Spyder2Pro. Workflow is NEF/RAW in camera & sRGB workspace and output space (final JPGs).
The variation of color on my desktop (also calibrated) shows almost no difference - unfortunately towards the color that I don't really see on my laptop's working space. Of-course this means that I need to color correct on my workstation -- or I need a better laptop, one that is backlit like the new MacBook Pros :-D Rob Galbraith seem to think they are much more accurate and that color correcting on the older MacPros is adventurous due to their inaccuracy. Problem solved (I hope).
A very rich mix of things: tripod from the UK, automatic panoramic head from who knows where, a Nikon D7000, a wire found on the ground, an old rusted nail coming from Tuscany, a girl from Taranto and a boy from Orbetello (more or less)... all inside a rupestrian room in Cappadocia... certain doubt about calibration of the panoramic head cannot wait to go back to the hotel...
In the out of focus world: Claudio and Tatiana.
Original shot taken with a Nikon D800e 36,2 Mp Digital SLR, Nikkor Zoom 24-120mm F4, Various post processing
We recovered this calibration stamp and brass retainer from the old body.
Many years ago weighbridges were quite rare and bulk loads especially low value loads such as sand and gravel was measured in cubic yards instead of weight.
A steel calibration stick was bolted inside the body to gauge level loads in cubic yards. This meant the load had to be reasonably level to get an accurate capacity reading.
The body capacity was usually marked on the outside for reference purposes.
In order to haul bulk loads using this system, the calibration stick had to be fixed in the correct position and bolted in place by the equivalent of trading standards of the day.
The bottom bolt was a tamper proof head inside the body with the nut tightened up inside the brass boss on the outside which you can see.
Trading standards then pressed in a lead seal to cover the nut and stamped it with the crown and stamp date.
This prevented any unscrupulous operator moving the calibration bar up or down. You would have to destroy the seal to undo the nut and if caught, resulted in prosecution.
We have the calibration bar and it is being shotblasted at the moment. Once cleaned up and painted, I will bolt it inside the body. The date is very relevant as it is the year I was born!
95x300s + calibration frames (darks, flats, bias')
ZWO ASI2600 MC Pro
William Optics Fluorostar 91
Altair 4nm Dual Band Filter (H-alpha & O(III))
ZWO ASI120mini guide camera on WO uniguide
ZWO AM5
higher resolution version with stars: www.astrobin.com/61e8zh/C/
When it comes to wide color gamut LCD monitor supporting 99% AdobeRGB, which monitor calibration tools perform better, X-rite i1 Display Pro or Datacolor Spyder4?
Quick test result as following:
At 140 Luminance (personal preference), manual calibration with software included in retail package and calibration measured at the center of monitor specify by the software:
I1 DisplayPro: x=0.313, y=0.329, T=6464K, Lv=141
Minolta CS-200: x=0.3214, y=0.3288, T=6044K, Lv=140.57
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Spyder4: x=0.313, y=0.328, T=6472K, Lv=140.2
Minolta CS-200: x=0.3053, y=0.3226, T=7004K, Lv=135.07
The above dataset demonstrate both colorimeters are capable but i1 DisplayPro performs better on wide color gamut LCD monitor like Dell UltraSharp U2713H, 2560 x 1440 resolution supporting 100% sRGB and 99% AdobeRGB.
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However, Dell U2713H also ships with an unique software (co-develop with X-rite), UltraSharp Color Calibration Solution software that will pair with i1 DisplayPro to significantly improve the calibration accuracy:
Target Chromaticity: x=0.313, y=0.329. 6500K, Lv=140.0
Cal 1 sRGB:
Minolta CS-200: x=0.3142, y=0.3292, T=6431K, Lv=139.09
Cal 2 AdobeRGB:
Minolta CS-200: x=0.3149, y=0.3296, T=6389K, Lv=143.14
At such a relatively lower price point of a 27 inches monitor with 2560 x 1440 resolution and 99% AdobeRGB, the bundling of Dell color calibration software and i1 DisplayPro offer a very high color calibration accuracy with exceptional value on price/performance!
Highly recommend:
- Dell U2713H (ships with Dell Color Calibration Solution Software)
- X-rite i1 Display Pro
Color calibration accuracy per the tested copy:< <1% Chromaticity value!!
@3DBenchy among 10 most popular #3dprinting models on @Pinshape, according to @All3DP ow.ly/Vt26a #CT3D
Flight-Cal turning off the runway heading while doing calibration work at Glasgow, Scotland in November 2017
A repro (with film chain calibration approximation to match) of the test pattern of Los Angeles' ABC O&O, KABC-TV (Channel 7), as first put into service in this form around 1963 (but the white mask outside the TP appears to be after 1965, to cover the "American Broadcasting-Paramount Theatres, Inc." notice below after the corporate name was changed to American Broadcasting Companies, Inc.). Unlike other ABC stations' TP's with this design, this variant used Paul Rand's 1962 "ABC circle" logo rather than G. Dean Smith's "circle 7" logo from that same year. This appeared on and off in-between broadcast days well into 1989 or so. As seen on a YouTube clip.
G-DOSC arriving at Norwich Int. Airport (NWI).
Model: DA42 MPP Guardian
Manufacturer: Dimond Aircraft
Year built:
Serial number: 42M.001
Registration: G-COSC
Owner: Flight Calibration Survives
Delivery date: 23rd. December 2008
Crew: 1
Passengers: 3
Length: 28 ft. 1 in. (8.56 m)
Height: 8 ft. 2 in. (2.49 m)
Wingspan: 44 ft. 4 in. (13.51 m)
Empty weight: 3,008 lb. (1,365 kg)
Useful load: 1,398 lb. (634 kg)
MTOW: 4,407 lb. (1,999 kg)
Max fuel weight: 509 lb. (230 kg)
Max fuel volume: 66.35 gal. (288 litres)
Engines: 2 x Thielert TAE 125-02-99
Engine output: 2 x 132 hp (99 kW)
Propeller: 2 x 3 blade MTV-6-R-C-F/CF 190-69 3, constant speed
Max cruise speed: 171 knots (196 mph - 316 km/h)
Min operating speed: 71 knots (81 mph - 131 km/h)
Service ceiling: 18,000 ft (5,485 m)
Max range: 1,056 nm (1,215 miles - 1,955 km)
Take off distance: 1,854 ft. (565 m)
Landing distance: 1,273 ft (388 m)
Also registered as: OE-FOG
17 Oct 2022, 00:45:00 UTC, Stuart Florida USA. Orion Atlas AZ/EQ-G Pro mount. Celestron C8 f/20. Mallincam DS10C camera, bin 1, exposure ~5 ms, gain very low, best 25 of 2484 frames (filesize 25 GB, framerate ~35fps), no calibration frames, no filter, no guiding. Good focus. Sky was not steady but scope appeared at least roughly collimated.
from Stellarium:
Altitude: 46°
Magnitude: 0.61
Apparent diameter: 17.7 arcsec (41.2 with rings)
South is up.
Visible features -- from bottom up:
North Pole region, shadow of planet globe on rings at lower left, transparent Ring C visible across equatorial zone of planet (not a shadow), and edge of globe visible through Cassini Division between Rings A and B. Enke's Division is not resolved.
Processing notes: Autostakkert3, Astrosurface, and Photoshop.
Clouds: partly cloudy
Seeing: avg
Transparency: avg
From Sky & Telescope magazine: The north pole of Saturn is tipped towards Earth at this time; apparent magnitude +0.6.
From Wikipedia:
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with an average radius of about nine and a half times that of Earth. It has only one-eighth the average density of Earth; however, with its larger volume, Saturn is over 95 times more massive.
Saturn's interior is most likely composed of a core of iron–nickel and rock (silicon and oxygen compounds). Its core is surrounded by a deep layer of metallic hydrogen, an intermediate layer of liquid hydrogen and liquid helium, and finally, a gaseous outer layer. Saturn has a pale yellow hue due to ammonia crystals in its upper atmosphere. An electrical current within the metallic hydrogen layer is thought to give rise to Saturn's planetary magnetic field, which is weaker than Earth's, but which has a magnetic moment 580 times that of Earth due to Saturn's larger size. Saturn's magnetic field strength is around one-twentieth of Jupiter's. The outer atmosphere is generally bland and lacking in contrast, although long-lived features can appear. Wind speeds on Saturn can reach 1,800 km/h (1,100 mph; 500 m/s), higher than on Jupiter but not as high as on Neptune.
The planet's most notable feature is its prominent ring system, which is composed mainly of ice particles, with a smaller amount of rocky debris and dust. At least 83 moons are known to orbit Saturn, of which 53 are officially named; this does not include the hundreds of moonlets in its rings. Titan, Saturn's largest moon and the second largest in the Solar System, is larger than the minor planet Mercury, although less massive, and is the only moon in the Solar System to have a substantial atmosphere.
Saturn is named after the Roman god of wealth and agriculture and father of Jupiter. Its astronomical symbol (♄) has been traced back to the Greek Oxyrhynchus Papyri, where it can be seen to be a Greek kappa-rho with a horizontal stroke, as an abbreviation for Κρονος (Cronus), the Greek name for the planet (Saturn symbol (late classical and medieval mss).png). It later came to look like a lower-case Greek eta, with the cross added at the top in the 16th century to Christianize this pagan symbol.
The Romans named the seventh day of the week Saturday, Sāturni diēs ("Saturn's Day"), for the planet Saturn.
Saturn is a gas giant composed predominantly of hydrogen and helium. It lacks a definite surface, though it is likely to have a solid core. Saturn's rotation causes it to have the shape of an oblate spheroid; that is, it is flattened at the poles and bulges at its equator. Its equatorial and polar radii differ by almost 10%: 60,268 km versus 54,364 km. Jupiter, Uranus, and Neptune, the other giant planets in the Solar System, are also oblate but to a lesser extent. The combination of the bulge and rotation rate means that the effective surface gravity along the equator, 8.96 m/s2, is 74% of what it is at the poles and is lower than the surface gravity of Earth. However, the equatorial escape velocity of nearly 36 km/s is much higher than that of Earth.
Saturn is the only planet of the Solar System that is less dense than water—about 30% less. Although Saturn's core is considerably denser than water, the average specific density of the planet is 0.69 g/cm3 due to the atmosphere. Jupiter has 318 times Earth's mass, and Saturn is 95 times Earth's mass. Together, Jupiter and Saturn hold 92% of the total planetary mass in the Solar System.
Despite consisting mostly of hydrogen and helium, most of Saturn's mass is not in the gas phase, because hydrogen becomes a non-ideal liquid when the density is above 0.01 g/cm3, which is reached at a radius containing 99.9% of Saturn's mass. The temperature, pressure, and density inside Saturn all rise steadily toward the core, which causes hydrogen to be a metal in the deeper layers.
Standard planetary models suggest that the interior of Saturn is similar to that of Jupiter, having a small rocky core surrounded by hydrogen and helium, with trace amounts of various volatiles. Analysis of the distortion shows that Saturn is substantially more centrally condensed than Jupiter and therefore contains a significantly larger amount of material denser than hydrogen near its centre. Saturn’s central regions contain about 50% hydrogen by mass, while Jupiter’s contain approximately 67% hydrogen.
This core is similar in composition to Earth, but is more dense. The examination of Saturn's gravitational moment, in combination with physical models of the interior, has allowed constraints to be placed on the mass of Saturn's core. In 2004, scientists estimated that the core must be 9–22 times the mass of Earth, which corresponds to a diameter of about 25,000 km. However, measurements of Saturn's rings suggest a much more diffuse core with a mass equal to about 17 Earths and a radius equal to around 60% of Saturn's entire radius. This is surrounded by a thicker liquid metallic hydrogen layer, followed by a liquid layer of helium-saturated molecular hydrogen that gradually transitions to a gas with increasing altitude. The outermost layer spans 1,000 km and consists of gas.
Saturn has a hot interior, reaching 11,700 °C at its core, and radiates 2.5 times more energy into space than it receives from the Sun. Jupiter's thermal energy is generated by the Kelvin–Helmholtz mechanism of slow gravitational compression, but such a process alone may not be sufficient to explain heat production for Saturn, because it is less massive. An alternative or additional mechanism may be generation of heat through the "raining out" of droplets of helium deep in Saturn's interior. As the droplets descend through the lower-density hydrogen, the process releases heat by friction and leaves Saturn's outer layers depleted of helium. These descending droplets may have accumulated into a helium shell surrounding the core.
Rainfalls of diamonds have been suggested to occur within Saturn, as well as in Jupiter and ice giants Uranus and Neptune.
The outer atmosphere of Saturn contains 96.3% molecular hydrogen and 3.25% helium by volume. The proportion of helium is significantly deficient compared to the abundance of this element in the Sun. The quantity of elements heavier than helium (metallicity) is not known precisely, but the proportions are assumed to match the primordial abundances from the formation of the Solar System. The total mass of these heavier elements is estimated to be 19–31 times the mass of the Earth, with a significant fraction located in Saturn's core region.
Trace amounts of ammonia, acetylene, ethane, propane, phosphine, and methane have been detected in Saturn's atmosphere. The upper clouds are composed of ammonia crystals, while the lower level clouds appear to consist of either ammonium hydrosulfide (NH4SH) or water. Ultraviolet radiation from the Sun causes methane photolysis in the upper atmosphere, leading to a series of hydrocarbon chemical reactions with the resulting products being carried downward by eddies and diffusion. This photochemical cycle is modulated by Saturn's annual seasonal cycle. Cassini observed a series of cloud features found in northern latitudes, nicknamed the "String of Pearls". These features are cloud clearings that reside in deeper cloud layers.
Saturn's atmosphere exhibits a banded pattern similar to Jupiter's, but Saturn's bands are much fainter and are much wider near the equator. The nomenclature used to describe these bands is the same as on Jupiter. Saturn is perpetually covered with clouds of ammonia crystals, which may contain ammonium hydrosulfide as well. The clouds are located in the tropopause layer of the atmosphere, forming bands at different latitudes, known as tropical regions. These are subdivided into lighter-hued zones and darker belts. Saturn's finer cloud patterns were not observed until the flybys of the Voyager spacecraft during the 1980s. Since then, Earth-based telescopy has improved to the point where regular observations can be made.
The composition of the clouds varies with depth and increasing pressure. In the upper cloud layers, with the temperature in the range 100–160 K and pressures extending between 0.5–2 bar, the clouds consist of ammonia ice. Water ice clouds begin at a level where the pressure is about 2.5 bar and extend down to 9.5 bar, where temperatures range from 185 to 270 K. Intermixed in this layer is a band of ammonium hydrosulfide ice, lying in the pressure range 3–6 bar with temperatures of 190–235 K. Finally, the lower layers, where pressures are between 10 and 20 bar and temperatures are 270–330 K, contains a region of water droplets with ammonia in aqueous solution.
Saturn's usually bland atmosphere occasionally exhibits long-lived ovals and other features common on Jupiter. In 1990, the Hubble Space Telescope imaged an enormous white cloud near Saturn's equator that was not present during the Voyager encounters, and in 1994 another smaller storm was observed. The 1990 storm was an example of a Great White Spot, a unique but short-lived phenomenon that occurs once every Saturnian year, roughly every 30 Earth years, around the time of the northern hemisphere's summer solstice. Previous Great White Spots were observed in 1876, 1903, 1933 and 1960, with the 1933 storm being the most famous.
The winds on Saturn are the second fastest among the Solar System's planets, after Neptune's. Voyager data indicate peak easterly winds of 500 m/s (1,800 km/h). In images from the Cassini spacecraft during 2007, Saturn's northern hemisphere displayed a bright blue hue, similar to Uranus. The color was most likely caused by Rayleigh scattering. Thermography has shown that Saturn's south pole has a warm polar vortex, the only known example of such a phenomenon in the Solar System. Whereas temperatures on Saturn are normally −185 °C, temperatures on the vortex often reach as high as −122 °C, suspected to be the warmest spot on Saturn.
A persisting hexagonal wave pattern around the north polar vortex in the atmosphere at about 78°N was first noted in the Voyager images. The sides of the hexagon are each about 14,500 km (9,000 mi) long, which is longer than the diameter of the Earth. The entire structure rotates with a period of 10h 39m 24s (the same period as that of the planet's radio emissions) which is assumed to be equal to the period of rotation of Saturn's interior. The hexagonal feature does not shift in longitude like the other clouds in the visible atmosphere. The pattern's origin is a matter of much speculation. Most scientists think it is a standing wave pattern in the atmosphere. Polygonal shapes have been replicated in the laboratory through differential rotation of fluids.
HST imaging of the south polar region indicates the presence of a jet stream, but no strong polar vortex nor any hexagonal standing wave. NASA reported in November 2006 that Cassini had observed a "hurricane-like" storm locked to the south pole that had a clearly defined eyewall. Eyewall clouds had not previously been seen on any planet other than Earth. For example, images from the Galileo spacecraft did not show an eyewall in the Great Red Spot of Jupiter.
The south pole storm may have been present for billions of years. This vortex is comparable to the size of Earth, and it has winds of 550 km/h.
Saturn has an intrinsic magnetic field that has a simple, symmetric shape—a magnetic dipole. Its strength at the equator—0.2 gauss (µT)—is approximately one twentieth of that of the field around Jupiter and slightly weaker than Earth's magnetic field. As a result, Saturn's magnetosphere is much smaller than Jupiter's. When Voyager 2 entered the magnetosphere, the solar wind pressure was high and the magnetosphere extended only 19 Saturn radii, or 1.1 million km (712,000 mi), although it enlarged within several hours, and remained so for about three days. Most probably, the magnetic field is generated similarly to that of Jupiter—by currents in the liquid metallic-hydrogen layer called a metallic-hydrogen dynamo. This magnetosphere is efficient at deflecting the solar wind particles from the Sun. The moon Titan orbits within the outer part of Saturn's magnetosphere and contributes plasma from the ionized particles in Titan's outer atmosphere. Saturn's magnetosphere, like Earth's, produces aurorae.
The average distance between Saturn and the Sun is over 1.4 billion kilometers (9 AU). With an average orbital speed of 9.68 km/s, it takes Saturn 10,759 Earth days (or about 29+1⁄2 years) to finish one revolution around the Sun. As a consequence, it forms a near 5:2 mean-motion resonance with Jupiter. The elliptical orbit of Saturn is inclined 2.48° relative to the orbital plane of the Earth. The perihelion and aphelion distances are, respectively, 9.195 and 9.957 AU, on average. The visible features on Saturn rotate at different rates depending on latitude, and multiple rotation periods have been assigned to various regions (as in Jupiter's case).
Astronomers use three different systems for specifying the rotation rate of Saturn. System I has a period of 10h 14m 00s (844.3°/d) and encompasses the Equatorial Zone, the South Equatorial Belt, and the North Equatorial Belt. The polar regions are considered to have rotation rates similar to System I. All other Saturnian latitudes, excluding the north and south polar regions, are indicated as System II and have been assigned a rotation period of 10h 38m 25.4s (810.76°/d). System III refers to Saturn's internal rotation rate. Based on radio emissions from the planet detected by Voyager 1 and Voyager 2, System III has a rotation period of 10h 39m 22.4s (810.8°/d). System III has largely superseded System II.
A precise value for the rotation period of the interior remains elusive. While approaching Saturn in 2004, Cassini found that the radio rotation period of Saturn had increased appreciably, to approximately 10h 45m 45s ± 36s. An estimate of Saturn's rotation (as an indicated rotation rate for Saturn as a whole) based on a compilation of various measurements from the Cassini, Voyager and Pioneer probes is 10h 32m 35s. Studies of the planet's C Ring yield a rotation period of 10h 33m 38s + 1m 52s − 1m 19s .
PACIFIC OCEAN (Feb. 07, 2016) - Fire Control men fire a MK15 Close-in Weapons System, or CIWS, during a Pre-action Aim Calibration Fire. Bonhomme Richard is the lead ship of the Bonhomme Richard Amphibious Ready Group and is slated to participate in amphibious integration training and a certification exercise with the embarked 31st Marine Expeditionary Unit. (U.S. Navy photo by Mass Communication Specialist Seaman William Sykes/Released) 160207-N-XK809-026
** Interested in following U.S. Pacific Command? Engage and connect with us at www.facebook.com/pacific.command and twitter.com/PacificCommand and www.pacom.mil/
The Federal Aviation Administration's Canadair (Bombardier) CL-601 Challenger N86 about to land at RAF Mildenhall
Used for Flight check and calibration duties, this neat looking 'biz-jet' is often seen at venues around Europe
IMG_7444
Picking clovers in the back yard. Any thoughts on the post processing? I wanted soft colors and the clovers to stand out. Converted to sRGB but still some of the (face and skirt) pink and (rich) green hues are not showing up in firefox type browsers.
Calibration well
The Lauingen Calibration well is the oldest barrel calibration corporation of the Free State.
Thanks to the commitment of the Culture Market Lauingen e.V., a very special facility awaits interested guests in the valley Upper Brunnental. Here, the capacity of barrels was officially recorded by the gauger. This was something like the TÜV tests of our day. Thanks to the work of the Gauging Office, the trade in wine and beer was also protected in the old days from unfair machinations. This was of particular importance in Lauingen. In 1755, the city had 19 breweries and 51 restaurants (today there are still 27 - in a city with about 11,000 inhabitants!).
In 1937, the Lauingen Eichbrunnen was relieved of its function because it no longer fulfilled the then guidelines.
Eichbrunnen
Der Lauinger Eichbrunnen ist die älteste Fasseichanstalt des Freistaats.
Dank des Engagements des Kulturmarkt Lauingen e.V. wartet im Oberen Brunnental eine ganz besondere Einrichtung auf interessierte Gäste. Der Lauinger Eichbrunnen ist die älteste Fasseichanstalt des Freistaats. Hier wurde das Fassungsvermögen von Fässern durch den Eichmeister amtlich festgehalten. Damit verhielt es sich etwa so wie mit den TÜV-Prüfungen unserer Tage. Dank der Arbeit des Eichamtes war der Handel mit Wein und Bier auch in alter Zeit vor unlauteren Machenschaften geschützt. Dies war in Lauingen von besonderer Bedeutung. Im Jahre 1755 hatte die Stadt 19 Brauereien und 51 Gaststätten (heute sind es derer immerhin noch 27 - in einer Stadt mit rund 11.000 Einwohnern!).
Im Jahre 1937 wurde der Lauinger Eichbrunnen von seiner Funktion entbunden, da er die damaligen Richtlinien nicht mehr erfüllte.
Diamond DA62 G-TACN of Flight Calibration Services makes a sharp turn at the end of its calibration run at Prestwick Airport, Scotland on 4th March 2020
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- CDK1000, CDK17
Mounts- Planewave
Camera- FLI PL16803
Filters: Chroma LRGB 2"
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.9, Photoshop 2023
Object description at www.billionsandbillions.com
Maandag - Monday 1 May 2023
Info :
---------------
Registration : IE-TCN
Type : Diamond Aircraft DA-62
C/N : 62.044
Build : 2016
Owner : Flight Calibration Services (FCS)
Flight : EKRK
Location : EHLE
Acquisition, Calibration- Mike Selby
Post-processing- Warren Keller
Telescope- CDK1000, CDK17
Mounts- Planewave
Camera- FLI PL16803
Filters: Chroma LRGB 2"
Software: StarKeeper.it Voyager
Location- Obstech, El Sauce, Chile
PixInsight 1.8.9-3, Photoshop 2025
Object description at www.billionsandbillions.com
Camera information: Calibration= 0,004 Millimetres per pixel; Capture format= 2048 x 1536; Gamma= 1,20; Gain= 3,4 x; Exposure= 342,0 ms; Auto exposure= Off; Image type= Colour; Sharpening= On; Black clip= 0; White clip= 0;
Microscope information: Main Objective Mag.= 1; Visual Magnification= 15; Video Magnification= 0,75; Zoom Iris= 1;
Setting those darn infinity stops on this Century Graphic camera with the help of a distant Boston skyline. Looking across Dorchester Bay from Squantum Point Park in Quincy, MA. I wound up sending this camera to a professional (Bald Mountain Camera) to have both the infinity stops set and the range finder calibrated. I concluded one has to have absolute faith that a camera's focus calibrations are set dead on; too important to leave the work to an amateur such as myself. Snapped this picture with my cell phone.
A composite I created for an illustration for a class on digital capture and workflow that I am teaching for the School of Visual Arts in New York City. Regular display calibration images seemed a bit ho hum, so I decided to have some fun with it.
Open star cluster and reflection nebula
Exposure Details
Lens Celestron Nexstar 6SE
Focal Length 1500mm
Focal Ratio f/10
Mount Alt Az fitted with wedge
Camera Nikon D5300 (unmodified)
Exposure ISO1600, 218x30sec, 24x45sec
(total exposure 127min)
Calibration 40 darks, 40 flats, 40 bias
Date 12th June 2021
Location Southampton, UK
Sky Bortle 5
My Zorki 4K camera and its Jupiter-8 1:2 f=50 mm normal lens clearly needed a calibration of its range finder. It is a very easy task for the infinite, acting on a small adjustment screw located at the front, left to the finder window. This film is a test of the focusing capability now much more efficient. There still a tiny shift that I will try to optimize soon following the known protocols (tomtiger.home.xs4all.nl/zenrep/calibration.html)
The camera was loaded with a CineStill Double XX (cine film Eastman 5222) exposed for 200 ISO using a Minolta Autometer III lightmeter fitted with a 10° viewfinder for selective measuring privileging the shadows. After exposure the film was processed using Tetenal Ultrafin developer at dilution 1+20 for 12 min and 20°C.
Rue de Bissardon, September 9, 2022
69300 Caluire-et-Cuire-et-Cuire
France
After process the film was digitalized using a Sony A7 body and a Minolta Slide Duplicator with a Minolta Auto Bellows III with a lens Minolta Bellow Macro Rokkor 50mm f/3.5.
About the camera :
This camera was manufactured in 1977 by KMZ company ( Красногорский механический завод, Krasnogorskiy Mechanicheskiy Zavod) located in the Moscow region. KMZ also manufactured the ZENIT SLR's among many other productions. Zorki 4K was produced between 1972 to 1978 and the previous Zorki models were inspired by the Leica II since 1949. This model 'Made in USSR" is branded in roman characters, intentionally for exportation. Other Zorki 4K were also branded in Cyrillic as "Зоркий". Zorki 4K was sold basically either with this Jupiter-8 lens 1:2 f=50mm or the Industar lens1:3.5 f=50mm. The Jupiter-8 is a Sonnar Zeiss optical formula and fits to the Zorki body using the screwing M39 Leica mount.
Its was sold to me in August 2022 from Austria with its original ever-ready leather bag, a front lens cap and a small shade hood accessory Minolta D42KA. The shade hood and filter of my Focaflex also fit to the Jupiter lens (Leica standard 42 mm filter)