Henry Gentles Posted October 17, 2013 Share Posted October 17, 2013 I just bought a cheap pb mount to eos adapter for a prakticar zeis jena 35/2.4 lens I have. I'm noticing that infinity is out of focus, is this the adapter or is this true of all adapters? What I mean is, are there adapters that have infinity or will they all be out of focus? I buy a wide angle and the wide is out of focus? btw I have a canon 600D and yes I know the crop sensor changes the focal length to approx 50 or whatever. Quote Link to comment Share on other sites More sharing options...
jgharding Posted October 17, 2013 Share Posted October 17, 2013 Many play it safe by going slightly past infinity. That will put the very end stop of the lens out of focus as you describe. Try rolling back a bit. It's a way they can guarantee infinity is actually there, but you lose a bit of close focus. Quote Link to comment Share on other sites More sharing options...
Henry Gentles Posted October 17, 2013 Author Share Posted October 17, 2013 Oh ok!! I actually saw that if I pulled back a fraction from infinity it was in focus but was confused about the focal length but this makes sense now, thanks!! Quote Link to comment Share on other sites More sharing options...
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