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  1. #1

    Join Date
    Mar 2008
    Shooter
    Medium Format
    Posts
    269

    FM2 focus off slightly

    I have a Nikon FM2 and I find the focus is slightly off at big apertures. For example, with my 105mm lens, at F2.5 I find even if the image looks perfectly focused with the split prism, on film it looks a bit out of focus.

    I've tried this lens on my Canon 5d with an adapter, and it is sharp sharp sharp if focused correctly (the adapter has a focus confirmation, otherwise its impossible to manually focus!), so its not a lens problem.

    Is it possible that the mirror in the FM2 is slightly off? If so, can it be adjusted? Or is it more likely that the problem is that I suck at manually focusing?

  2. #2

    Join Date
    Apr 2004
    Location
    Montgomery, Il/USA
    Shooter
    Multi Format
    Posts
    4,979
    Yes.
    1) Check to see if the focusing screen is properly installed.
    2) Check the mirror by simply looking at the edges of the mirror, there should be two small clips near the bottom of the mirror, one on each side. If these are out of position, Use around toothpick & move it to the side & the mirror should drop into position.
    Heavily sedated for your protection.



 

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