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08-12-2010, 02:04 PM   #1
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K mount lens on M42 Camera

Do they make adapters to use a k mount lenses on a m42 camera or in my case a m42 tele converter? I know they make k mount to m42 adapters that allow m42 lenses on k mount bodies. I want the reverse adapter

08-12-2010, 02:45 PM   #2
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No. The K mount has a wider diameter than the M42, so you cannot mount the lens inside the body. M42 and K mount have the same registration distance so you can mount an M42 on a K body with the right adapter. Since the K mount wont fit in a M42 body you would change the registration distance and would need optical correction to get infinity focus. This is the main reason no one has made a K to M42 adapter. You can however get optically corrected Nikon F, Canon FD, and Minolta MD adapters for K mount cameras. So who knows. Maybe the Chinese will make a K to M42 adapter some day.

Check out this thread.

https://www.pentaxforums.com/forums/pentax-camera-field-accessories/96884-ada...addiction.html
08-24-2010, 05:19 PM   #3
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Yes, PK lenses can be used on M42 cameras! So can Canon, Nikon, Leica, Sony/Minolta, Petri, Olympus, Contax/Yashica, TV and cine lenses, et al, and with only cheap non-optical adaptors! It's a miracle!

But there's a catch: without major surgery, they can only be used for macros, reversed. Bother. That's probably not what you were looking for. Sorry about that.
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