Canon Lens Front/Back Focusing Calibration.

Started Aug 30, 2012 | Discussions thread
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Re: Canon Lens Front/Back Focusing Calibration.
In reply to exifnotfound, Sep 4, 2012

True, but all my prints from my Canon A1 and FD glass sure looked in focus, and besides an enlarger or slide projector, I couldn't really pixel peep, I guess that would be grain peep. And I was using digital focus 5.0 back then... I think maybe the more you know the more there is to be miserable about...

exifnotfound wrote:

Ta for the replies, it sounds about the same as FX glass.

Often the back/front focusing won't show up or at least be obvious in real world photos. It takes a heavily cropped test image.

Because of this, some may never see it & therefore claim that all their glass was perfect out of the box, or if they did see it they may not care as it's not noticeable in a real photo.

After paying a few $k on a lens though, I'm pretty fussy & so definitely look/test for it.

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