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#topcon

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Public
Alo Japan

alojapan.com/1231695/kkr-and-s KKR and state-backed JIC join forces to take Japan’s Topcon private for $2.31 billion #ActivistShareholders #Japan #JapanNews #JapanTopics #JIC #KKR #news #PrivateEquityFirm #Topcon #ValueActCapital By Anton Bridge and Makiko Yamazaki TOKYO (Reuters) -U.S.-based private equity firm KKR and a unit of Japanese state-backed fund Japan Investment Corp (JIC) will acquire medical gear maker Topcon in a tender offer buyout worth 348 billion ye…

KKR and state-backed JIC join forces to take Japan's Topcon private for $2.31 billion
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Francois Dion

Topcon Story: Topcon Enigma

An extremely rare and long out of print #book. Covering the story of the Tokyo Kogaku co. & the Topcon cameras & #lenses. Originally published in #italian by the Nassa Watch Gallery (Lugano) in 1997 and also translated to English.

It emphasizes Topcor R & RE line and the Topcon manual #cameras. There needs to be a complement to this covering more the Wink / Uni / auto 100 / #unirex / UV lenses and accessories.

Hardcover book by Marco Antonio and Claudio Russo, Topcon Story. In topcon official blue and grey colors
#topcon#beseler#topcor
Public
Francois Dion

“Deactown”

Winston Salem, North Carolina, has a few nicknames. Also known as Camel city.

On my last photo outing, i took two cameras. One to test (Topcon IC-1 focal plane shutter 35mm slr camera) and one known to work (Beseler #Topcon Auto 100 SLV leaf shutter). That way i would have at least one good roll of film. Turns out both worked fine. The IC-1 had a wide 35mm f3.5 lens while the Auto 100 had a 53mm f2. The 53mm framed this like i wanted from across the street.
#photography #film #35mm

Sign that reads Deactown, next to Barcelona restaurant in Winston Salem
Public
Francois Dion

Black and white digital photo rig:

Fujifilm XT-20, Acros std b&w film simulation, strong grain, speed booster M42 to Fuji X, Topcor UV to M42 adapter, Tokyo Kogaku Topcor UV 100mm f4 short telephoto.

For close-up, I add a Topcon Close up n.1 filter lens. For contrast I use topcon red R2 or yellow Y2 or gradient filters. You can get similar result (close) with Acros R or Acros Ye.

Camera and lens as described, on top of Popular Photography magazine from January 1984
#photography#camera#lens
Continued thread
Public
Francois Dion

And for reference, here are the other two silver and black versions of the UV Topcor 53mm lenses. The one on the right is the intermediary model, with a slit instead of a j slot, and the left has the late "solid" tabs. The lens release button is also different. Optical design appears to be the same for all 3 versions of the lens.

Two versions of the 53mm f2 UV Topcor lens side by side
#photography#cameras#lens
Continued thread
Public
Francois Dion

With the lens removed from the Wink S Mirror camera, the mount on the lens side reveals the earliest type of lens mount, with the retaining tabs having a J slot, possibly to apply some pressure on the opening tabs on the camera mount side. I've only seen this J slot on the 53mm, but I suppose an early 35mm or 100mm lens from 1963 would have the same.

Uses a seikosha leaf shutter like the Uni.

j slot tabs on the mount of the lens. Lens is separated from the camera, both against a white background
#photography#topcon#topcor
Public
Francois Dion

The first Topcon camera using UV Topcor interchangeable lenses was the Wink S Mirror. This was based on the Topcon Wink E mirror (Beseler Topconette in the US), the E for "electric eye", a selenium cell to meter light.

The 1962 Wink E had fixed lens whereas the 1963 Wink S had 3 lenses available: 53mm f2, 35mm f3.5 and 100mm f4. notice the large selenium meter in front of the pentaprism.

Also sold as the Porst Reflex S.

Topcon Wink S Mirror with a 53mm UV Topcor lens against a white background. The red markings on the mount and lens are really bright and quite visible
#photography#cameras#lens
Public
Francois Dion

Developed the test #film from the black #topcon New IC-1 & the auto aperture works intermittently, that is to say almost never. 4 shots out of 25. It'll have to go through a full revision and test.

Fortunately I have a Topcon IC-1 original (in silver finish) that I've cleaned and looks to be working ok. The battery cover was stuck due to batteries that leaked. Was able to free it, removed the bad batteries, cleaned the contacts, put new batteries and tested the modes. #photography #repair #diy

Topcon ic-1, original version from 1973. Uses UV Topcor and Hi Topcor lenses. Pictured here with a UV Topcor 35mm 3.5 lens with hood and a strap.
Public
Francois Dion

Back row: black plastic hood with clamp for UV Topcor 135mm version 1 lens (version 2 has an integrated hood), black screw on hood for UV Topcor 100mm

Middle: black screw on plastic hood for 35mm f3.5, 53mm f2, 50mm f2.8, 50mm f2 and Hi Topcor 55mm 1.8

Front row: silver metallic screw on hood for 28mm f4 and silver metallic screw on hood for 35mm f3.5 and 50mm f2. It also fits 50mm f2.8, 53mm f2 and Hi Topcor 55mm f1.8.

5 lens hoods sitting on top of their original boxes in Topcon blue white and grey. 3 hoods are black plastic, 2 are silver metallic, all from the 60s and 70s. This is a complete set for UV Topcor lenses
#photography#hood#camera
Replied in thread
Public
Francois Dion

After partially disassembling the lens, I was able to free the adapter. No wonder it was wobbly, it was held together with only one of 3 screws. And, I doubt this is original, but there was a o-ring in the sandwich of parts making up the adapter. My guess is that the o-ring was added to compensate for the 2 missing screws, leaving a path for light to enter without it.

The aperture stop spring and bearing was also missing.

The parts making up the adapter: Topcon re mount with 3 setscrews, the intermediary spacer to get flange distance right, the Uv topcor bayonet mount and the aperture ring. Also an o-ring, probably not original.
#photography#camera#lens
Continued thread
Public
Francois Dion

So imagine my surprise when i stumbled upon this lens. Looks like an exakta or early tamron adaptamatic lens, then you recognize the silver band and focus ring as Topcon UV topcor. that’s what the seller tells you, based on the beauty ring. But the mount is wrong. Then, 💡

There is a UV adapter mounted on it. But it is stuck and wobbly, possibly damaged. The aperture ring is also stuck. So maybe it wont be of any use… or perhaps i can repair the adapter…
#photography #lens #adapter #topcon

Uv topcor lens with an unusual mount…
Public
Francois Dion

One of the rarest Topcon accessory is the UV mount adapter. If you look at a UV mount lens, it has no aperture control ring. Works on a UV mount camera as the camera has an aperture ring on the mount. the other Topcon cameras used the R or RE mount (based on exakta) so they made an adapter. Not that many were sold, or maybe they got discarded as people though it was just random lens parts… at any rate they rarely show up for sale anywhere.

UV mount adapter makes it use lenses and accessories from the UV mount series on a Topcon RE bayonet camera. Retail in the early 1970s was less than $20. possible to
#photography#cameraadapter#camera
Public
Francois Dion

The equalizer.

Not Queen Latifah, just a camera. At launch, the Auto 100 came with a 53mm f2 lens and 2 optional lenses, a wide 35mm f3.5 and a 100mm f4. Not long after that they added a 135mm (a massive affair) and a 200mm f4 (the Topcon RE version was 5.6). With the lauch of the Unirex, they would later add a 28mm for the UV line (wink, uni / auto 100, unirex, ic-1). They are called UV #topcor because the glass is coated to block UV, making a uv filter superfluous. #camera #topcon #lens

The Beseler Topcon Auto 100 camera with standard lens mounted and surrounded by wide angle, 100mm, 135mm and 200mm lenses. Add is titled “The equalizer”
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