Some Jupiter-9 Photos

at min focus mine focus about 2" behind subject.
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I have both versions of this lens. My observation is that the Kiev mounted one performs better (but only a little bit) than M39 version. I can't really say it is a focusing issue, maybe it is the way they were assembled?
 
I used to have a J-9 and I think it's a superb lens if it is calibrated well. Mine was. I only sold it because I get similar results with Hex 90 and Nikkor 10.5cm yet with a higher hit rate. At f2 Jupiter 9 can be a challenge to focus. But when you get it - it's awsome - sharp with beautiful bokeh:

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I think that that focussing issues with Kiev mount lenses are less common than with LTM because of the bayonet mount. It is well known that users of Soviet LTMs were advised to have their cameras/lenses adjusted every time the lens was changed. No such procedure was advised for Kiev cameras.
 
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