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pentax m42 mount lenses on a krasnogorsk-3?


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#1 Stacy R Fillion

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Posted 21 April 2007 - 01:24 PM

Can this be done? Will the aperture work correctly?
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#2 Sir Alvin Ekarma

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Posted 21 April 2007 - 01:51 PM

Can this be done? Will the aperture work correctly?


Yup. Standard operating procedure. Make sure the lens is set to Manual and you're all set.
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#3 Patrick Cooper

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Posted 21 April 2007 - 01:57 PM

Ive got a takumar 200mm and a tamron 400mm and they work fine on the K3. The only thing is that the takumar won't focus on infinity so I might have to get that lens adjusted by an expert oneday.
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#4 Stacy R Fillion

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Posted 21 April 2007 - 02:59 PM

"Make sure the lens is set to Manual and you're all set."

I assume you meant automatic. Is there some sort of attachment so that you can set the aperture manually

Edited by S.R.Fillion, 21 April 2007 - 03:01 PM.

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#5 Sir Alvin Ekarma

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Posted 21 April 2007 - 05:51 PM

"Make sure the lens is set to Manual and you're all set."

I assume you meant automatic. Is there some sort of attachment so that you can set the aperture manually


My M42 lenses have a switch near the base and markings for Manual (M) and Automatic (A). Most M42 lenses have this but if they're the automatic kind w/ a pin, you need to disable that.
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#6 Charles MacDonald

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Posted 21 April 2007 - 09:34 PM

I assume you meant automatic.

NOPE MANUAL.

In the still camera the lens is stopped down by a pin in the back just before the shot, this will not work for movies, so the lens must be run on manual so it is stopped down all the time. A few of the lenes don't have the manual setting so they must either be modified or traded.

Noote that the lenses for the Sportmatic f have the switch but it will not go into manual Unless a small pin near the threads is pressed in. I am not sure if the K-3 will press this pin. You may have to press it, and set the lens on manual beofre mounting it on the camera.
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