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The last chance ?

Started Apr 14, 2017 | Discussions thread
OP Dunsun Contributing Member • Posts: 656
Re: The last chance ?

Martin.au wrote:

Getting backfocus is strange. It generally suggests that the camera is being given the choice about what to focus on, and choosing the wrong thing. I doubt it's a problem with focus accuracy, and more a problem with the camera being given too much choice in what to focus on.

Have you tried using face detect?

Have you used small focus point?

Are you using a large focus point, or letting the camera choose what it considers to be the best focus point?

I do not use face detect much since in bad light it's not very reliable.

Anyways usually I shoot with a small focus point and a single shot.

Generally problem with Olympus AF system is that it's too simplistic + while computing their contrast detection algoritms they do not strictly obey focus point borders. Then it simply takes focus onto a more contrasty background even though it's not covered within a selected focus area. This is true for all of their actual cameras (that I have used E-M5II, E-M10II). But this was NOT a case for E-P5. It was more accurate even though a very little bit slower. And same is true for my E-PL5 (but this is my girlfriend's camera and I think that ergonomically it's a nightmare at least for me).

Moreover my E-M10II sample seems to be a bit more inacurate (back focus issue) than my friend's one. We still have not found a reason for it. Same settings, same lens, same target (eye that is 50cm from a camera, bad light). His camera hit the target with a good accuracy (almost always perfect). But obviously my camera is bad (1/2 of shots back focused).

Really weird.

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