View allAll Photos Tagged reverse
Flies can be tricky to shoot this close, often they'll take off if you get within a foot, but occasionally one will cooperate.
Shot with a 24mm reversed onto extension tubes. The flash is on a hinged hot shoe that leans the flash out over the lens stack. A DIY snoot with diffusion fires the light in front of the lens.
Reversed anaglyph
Use anaglyph glasses, red over the right eye
There are reports that people who cannot see conventional anaglyphs can see anaglyphs where the right eye is red and the left cyan.
www.flickr.com/groups/anaglyph/discuss/72157622497466069/
Dubois colours
Reverse Warrior, also I call it graceful warrior, it is perhaps one of my favorite standing postures/asanas; it is a graceful yet strengthening pose. Front leg is bent to 90 degrees or less; back leg is lengthened; front arm is reaching skyward while back arm is extended towards the lengthened back leg. Breathe in the pose for several breaths than repeat on the opposite side.
Practice it daily and feel stronger in body and spirit. The pose was taken by the Washington Monument in Washington DC during a brief family travel at the cherry blossoms time of the year and it is absolutely beautiful!
Undated letter on reverse (below) with Einheitsstempel: Wachkommando Osterode Landst.-Inf.-Batl. Göttingen. Postage cancelled at Ostenholz (Hannover) on 21.11.1914.
A group of armed guards from Landsturm-Infanterie-Bataillon 'Göttingen' (X. 15) with seven Belgian prisoners of war.
The Prussian guards all wear M1860 tschakos, black or dark blue Litewken (loose fitting tunics), a mixture of ammunition pouch types and they are armed with Gew 88s, some fitted with the S71/84 knife-bayonet.
I have begun a comedy series about an extraordinarily reverse man doing ordinary things.
Two episodes are done and uploaded on my YouTube channel.
New epidsode every saturday!
A close up view to a scene immortalised in film, at least in reverse, as the smaller viaduct (GWR, single track, 48m) passes under the S+D viaduct at Midford. Open from 1910 to 1951 on the short-lived Limpley Stoke branch, these bridges featured at the start of the 1952 film 'The Titfield Thunderbolt', in which a steam railway struggled to stay afloat in the face of rival bus services. (Is this where Beeching got his ideas??) The rest of the film was made on the GWR branch nearer to Camerton, plus has some great shots of Bristol Temple Meads in the 1950s.
Letter on reverse (below) kindly translated by Uwing50 & xiphophilos: authored at Pforzheim on 14 June 1915 and addressed to the sender's brother, a Gefreiter d. Landwehr Julius Eberle of the 8. Ersatz- Division. Postage cancelled at Pforzheim on 14.6.1915.
Unit: Landsturm Infanterie Bataillon 56
Rank: Landsturmmänner Unteroffizier
Headwear: --- / M.15 Überzug
Tunic: Model 1907/10 Feldrock
Awards: None
Buckle: Indiscernible
Accoutrements: Blanket roll
Ammunition pouches: M.09 type
Armament: Gew 88
_____________________________________________________________________
Notes:
Landsturm Infanterie Bataillons "56": V 56 'Skalmierschütz' (E. Front), VII 56 'Solingen' (7th Army) or XVIII 56 -- (Romania).
Ldst.-I.-Btl. Pforzheim (XIV. 21).
My beloved friend died at 28 on Wednesday 11 february, after throwing herself under the Subway train.
SET 2 – Olive Branch Kroger, Post-Remodel
Facing the other way from the same spot, we see the other half of the rear actionway, with both a red and another green set of those banners coming into view. Along the perimeter wall, the paint switches to a deep blue as we transition into the dairy department, which as you can see takes up an extensive amount of space in this store. We’ll explore it more as we move forward. On the right, some more of the center-store grocery aisles come into view.
(c) 2024 Retail Retell
These places are public so these photos are too, but just as I tell where they came from, I'd appreciate if you'd say who :)
The medal shows a well engraved portrait of Albert Smith (1816-1860) and on the reverse side is the text EGYPTIAN HALL MUSEUM 1860. The medal was struck in brass with much of its original gilt remaining. There is a hole to accommodate a suspension loop.
This medal dated 1860 was issued to commemorate Albert Richard Smith’s long-standing association with the Egyptian Hall in Piccadilly, London. Albert Smith originally went to medical school in London and Paris to train as a surgeon but later found his niche in life as an author and entertainer. He became a well known writer of novels, plays and short-stories throughout Victorian England. Albert Smith also liked to travel and recount his adventures including those of his ascent on Mont Blanc in the Alps (1851) and of his journeys throughout China (1858). He also entertained in the Egyptian Hall enthralling audiences with readings of his own works, recounting his adventures of climbing Mont Blanc and from China.
The Egyptian Hall Museum was a museum opened to the public in 1812 and housed in a specially designed building with an ancient Egyptian style façade. The museum was built by William Bullock at the enormous cost at the time of £16,000 but the venture proved immensely profitable for him. Many ancient Egyptian artefacts brought back by Napoleon’s armies found there way there as well as many displays of other non-Egyptian and natural history objects. After 1820, the museum also served as an entertainment hall. It was located at number 22 Piccadilly, London but sadly, was demolished in 1905 and the present site is occupied by office blocks at numbers 170-173 Piccadilly.
References:
en.wikipedia.org/wiki/Albert_Richard_Smith (Wikipedia article on Albert Smith).
www.les-alpes-livres.com/Resources/Albert Smith NPa.pdf (Article about collectables associated with Albert Smith. The medal pictured above is mentioned but is undrilled and passed as a token).
www.georgianindex.net/Bullocks/Egyptian_Hall.html (Small article on teh Egyptian Hall Museum with contemporary engraving prints).
www.victorianweb.org/art/architecture/london/60.html (Egyptian Hall, Piccadilly from an 1895 photograph).
Enamels: n/a.
Finish: Gilt.
Material: Brass.
Fixer: Suspension loop/eye.
Size: 7/8” in diameter (about 22mm).
Process: Die stamped.
Maker: Pinches (of London).
Thank you for reading.
Stuart.
Lockheed 1049G Super Constellation, Capitol Airways N4903C, Silver white, Broad Red stripe/Blue stripe along fuselage, Red on fins. Gatwick 2. 7. 60
Taken in August 2016. It is possible to use any M42 mount lens normally on a Sony A mount with another adapter if you don't mind manual focus and exposure. The electronic viewfinder makes it more practical than it might have been otherwise and I use it quite a bit for general photography as it makes the camera very easy to carry round, being so small and light.
There are links to two pictures, one of the lens used normally and another with a close up of some flower buds in the discussions page for this topic.
Now a rather tedious and lengthy technical explanation for anyone who wishes find out more about what is going on here.
The 2 Euro coin is about 25 mm across and is slightly larger than a British 10 pence coin. On a 36 X 24 mm sensor this image is a magnification of about 1.5 and about 2.2 on the average cropped sensor. I have some modest knowledge of basic optics and was able to work out what was happening in general terms. The following are my conclusions which are for cameras with mirrors which have to use quite complicated optical designs for wide angle lenses. We can use this for our advantage to turn them into very useful macro lenses with only modest expenditure on extra hardware. Ideal for working indoors when the weather is bad.
For any type of DSLR or SLR, focal lengths below about 40 mm would cause the rear of the lens to be hit by the mirror when it flips up. The M42 Mount of this Takumar lens makes the rear of the lens body sit 45.5 mm from the sensor/film so a special optical design is needed to create a retro focus adjustment for this lens of 10.5 mm, i.e. a virtual lens or nodal point sits 10.5 mm behind the physical lens and 35mm in front of the sensor.
The front of the lens will have an obviously curved surface so it can 'see' a wide view but the rear of the first lens will be even more curved, making the lens concave. There will often be at least one more concave lens inside. To make it focus, a strong group of convex lenses will be in the rear of the lens. The effective focal length is worked out by drawing two parallel lines through the lens diagram and where it crosses the converging light from the rear elements (the nodal point) is where you take the measurement of the focal length.
As an aside, mirrorless cameras, with mounts much closer to the sensor, do not need this elaborate design except for the shortest of focal lengths.
Once the lens is attached to the camera back to front, with an adapter that screws into the filter thread, the nodal point now sits in front of the lens rather than behind it in the mirror box and creates a natural extension, allowing it to focus much closer than normal without extension tubes or bellows.
So sticking out from the camera body lens mount we have the length of the lens barrel, 34 mm, plus the 10.5 mm retro focus nodal point and we then add the 45.5 mm from the lens mount to the sensor, 90 mm in all. The subject comes into focus at 60 mm in front of the nodal point so the magnification is 90/60 or 1.5, exactly as measured by the magnification of the coin.
Longer focal length lenses work nothing like as well because they don't need retro focus construction, being naturally clear of the mirror and the longer the focal length of the lens, the closer the nodal point is to the front of the lens. There rapidly comes a point where reversing it puts the nodal point nearer to the sensor than its focal length and it won't focus at all, let alone provide any magnification. A 55mm lens only produces a magnification of about 0.38 but a small extension using the longest tube of an extension tube set brings it up to a useful 0.9 magnification.
Another useful bonus is that the design of 'normal' lenses is based on light being taken from relatively distant objects and focused on the relatively close sensor. Using the lens reversed, while it cannot compete with a lens designed for close up work, it works better back to front as the light passes through it closer to how it was designed have light pass through it.
Once we get to telephoto lenses, their optical construction uses similar retro focus principles but the other way round, placing its nodal point in front of the lens barrel rather than behind, a procedure designed to make the lens more compact. Reversing one of these would put the lens effectively in the mirror box or even behind the sensor. A huge amount of extension would be required to get the lens to focus on infinity, let alone any closer.
After adjusting the tripod and subject position, fine focusing was achieved with a budget macro rail which I have had for many years and hardly used before. It is solid enough with the relatively light and compact camera rig. Lighting was partly natural and reinforced with an LED torch kept for household emergencies and/or a cheap LED panel which I have also had for ages. The white balance was set to 'cloudy'. All taken indoors to avoid any wind movement as exposures are fairly long so ideal for a miserable day.
The reverse side.
For reasons that are unclear to me, many onlookers (I folded this first cupola at a library) seemed to admire these boring, monochrome sides of the cupolas more than the front sides. Telling them that the "star" they so admired would not be visible on the outside when I was finally done tended to dampen their enthusiasm somewhat.