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Where can I find a service to change Contax MM mount to Pentax K/A mount? I am in Toronto. Thanks!

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SOURCE: Can lens assemblies normally used with Pentax 35

not realy,,, the digital camera is tottely difrent
anyhow they would all be supper long lenses,,,

Posted on Oct 25, 2009

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Sigma 170-500mm lens on e bay says compatable with nikon d ,canon ef,pentax ect is this possible?

Yes. If the lens has a T-mount then by using various adapters the lens may be mounted on just about any camera.

May 20, 2012 | Sigma 170-500 mm f/5-6.3 Aspherical RF APO...

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I have an slr camera.. a yashica 300Af and i was wondering if i can replace my lens with another brand>> Is there a compatible camera lens for it? It so hard to look for a yashica lens here in the...

The Contax/Yashica lens mount was never popular to start with anywhere in the world, and the AF version of that mount was even rarer.

Your camera can only use lenses which are scarce, expensive and hard to find. Just use the camera as it is, and get another camera body with more widely available lenses such as Nikon, Canon, Pentax or Olympus. You can often pick those up for free or very cheaply.

Jun 17, 2011 | Camera Lenses

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Will it fit nikon d300

No it will not. You have to get only lens that have the right mount for Nikon. This one probably does not have, Unless it's designed especialy for Nikon, which I doubt.

Feb 23, 2010 | Contax Normal 50mm f/1.7 Carl Zeiss Planar...

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Hello I have a Pentax spot matik film camera. This camera comes with a lense with thread ... I was thinking in buy some of your lenses ( rokinon) 800- 1600mm. I would like to know if it will work in my...

The hard part will be getting a T-mount for the old Pentax screw mount. If you already have one, you should have no trouble. It won't even matter which one you buy, since you'll be removing the mount that comes with it and using the old Pentax screw instead.

If you don't have a T-mount, then you're going to have to hunt for one. You don't want to buy anything that's marked "for Pentax", since anything current will be the Pentax-K bayonet mount, not the old Pentax screw mount.

Feb 09, 2010 | Rokinon 800mm f80 Lens

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There's fungus inside the rear element - how do I remove the glass to get at it?

Any way you want.
The problem with fungus is that it etches the glass, which then has to be replaced. Unless you can find a stockpile of Contax 50mm f/1.7 Planar T* lenses for a replacement part, you'll have to buy another lens.

Let alone the recalibrating after replacing the lens element.

Sorry about that.

Dec 03, 2009 | Contax Normal 50mm f/1.7 Carl Zeiss Planar...

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Can lens assemblies normally used with Pentax 35 MM cameras be used with Pentax digital cameras? My 35 MM camera is a Program Plus.

not realy,,, the digital camera is tottely difrent
anyhow they would all be supper long lenses,,,

Oct 14, 2009 | Camera Lenses

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I have a number of Contax lenses I inherited from my father and I was wondering what digital camera bodies they would fit.

Without adapters, none. Contax shared their CY lens mount with Yashica and both produced fine cameras and lenses but neither manufacturer survived the transition from film to digital so there are no digital cameras which can use them as standard.

With the correct adapter you can mount most of them to Olympus Four Thirds and Micro Four Thirds for certain but some CY lenses may have rear elements which project backwards too far into the camera body. You'll also find that there will be no automatic stop down and no communication of aperture, zoom or focus settings to whichever digital body you fit them to.

Many CY lenses are excellent Carl Zeiss T* units but like almost all old 35mm lenses the optical designs were designed by engineers using slide rules and calculators. Except for the occasional "accidentally good" lens you shouldn't expect the optical performance to match contemporary designs which have the benefit of computer aided design and the latest advances in optical technology. This is especially true at apertures wider than around f8.

You may find adapters from CY to anything else to be hard to obtain/expensive simply due to lack of demand: even at their peak, Contax and Yashica SLR cameras were infrequently encountered and had very low sales volumes.

Although this may all sound negative, my advice is to check ebay for an adapter; many good Chinese sellers offer excellent and cheap adapters but research their feedback. Your lenses should be much better than the average 35mm SLR lenses and if you can accept a few compromises are still capable of producing very good photographs under the right conditions. Alternatively find a good used body like a Contax 139 or Yashica FX-D and scan the 35mm negatives afterwards for best results.

Sep 02, 2009 | Contax Camera Lenses

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it depends what mount your vivitar lenses have - you can easily search ebay for mount adaptors that will allow you to use most older lenses on the 4/3 body, but you will only be able to use manual focus and need to work in aperature priority or fully manual mode. A generic adaptor for a OM, Nikon, Pentax or Contax mount should cost around $20. you should read up on them as there are some differences with how they are made and function, but basically are just mechanical coupling devices that fit the lense to the camera. remember, you lose all automatic features

Dec 18, 2008 | Vivitar Camera Lenses

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