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Does anyone still use Panasonic 20mm f/1.7?

Started Aug 16, 2021 | Discussions thread
ahaslett
ahaslett Forum Pro • Posts: 12,654
Re: Shots-> just tried on EP7 at F1.7 and F4.0...

Raist3d wrote:

Same problem as I remember it. In this case it gave the out of focus image from the get go.

Shooting at F4.0 makes the result closer because you have more DOF, but the half press , wait, full press clearly is more in focus/has more detail.

Full press on the left, half shutter-wait for af- full press on the right:

This is how the all the other Olympus cameras I have tried behave pretty much. With some hits sometimes, but enough misses to make it unreliable.

I get the same result on my EM1.2, even though SAF Release Priority is Off.  On full press, it is OoF, on half press it confirms AF quickly and continuing to full press produces an in focus result.  On full press, there is no AF confirmation.  I almost never full press the shutter, so I've never noticed this before.

I'm assuming the reason for the first frame of a CAF burst being OoF is the same effect.

I wonder if micro-focus adjustment might help.

Thanks for pointing this out.

Andrew

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