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05-30-2015, 12:27 AM   #1
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altrnative à la bague M42 ?

Bonjour...
j'ai débuté une collection de best M42 et certains, comme le Tair 11A, me sont devenu indispensable :

comment et sur quel objectif peut on se passer d'une bague d'adaptation et remplacer le filetage M42 par le system bayonette K ....

1- comment se nome précisément cette pièce ?

2- sur quel objectif est-ce possible

Hello ...
I started a collection of best M42 and some, like Tair 11A, have become indispensable to me:

how and on what purpose you can do without an adapter ring and replace the M42 thread of the K bayonet system ....

1- how to nome precisely this room?

2- on what purpose is this possible?


Last edited by dadoudenice; 05-30-2015 at 01:07 AM.
05-30-2015, 08:01 AM   #2
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If I understanf you correctly, you want to replace the mount of the lens.

If so, consider to buy adapters for every M42 lens and mount them on each lens; you need to modify the adapters so they don't lock in the body.

This should give you a M42 lens that can be mounted / unmounted like normal the K-mount lenses. Only difference is that they don't lock in the camera.

There are two types of adapters, flanged ones and ones without a flange; flanged ones will prevent focus to infinity. I only have the original pentax adapter (part no 30120); if you however want to adapt multiple lenses as described above, it will become an expensive exercise. Others can advise on other brands.
05-30-2015, 08:33 AM   #3
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Soviet lenses ending in "A" (Tair 11A, Jupiter 37A, ...) can be converted to K-mount with fairly cheap T-mount adapters. The Tair 3S can be converted also.

Cheers,
Lou
05-30-2015, 09:52 AM   #4
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You can adapt any m42 slr lens to K-mount with the Pentax m42 to K-mount adapter: Pentax Mount Adapter K (M42 Adapter) reviews - Pentax Camera Accessory Review Database

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