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GX7 AF behaviour: no big deal but weird

Started Nov 27, 2018 | Questions thread
rurikw
OP rurikw Veteran Member • Posts: 3,788
Re: GX7 AF behaviour: no big deal but weird

alcelc wrote:

rurikw wrote:

Panasonic 45-150/4-5.6. Wooden floor, lowish contrast. Next time I have a problem getting focus I can try turning up EC so in a way it's more a solution than a problem, just funny.

45~150 is one of the 2 pany lenses I need to use with extra caution. The other is 12~32 in poor lighting condition.

Interesting tip. Hope wife hasn't had too much problems with the 12-32. Hasn't said anything and what I've seen looks ok though she shoots a lot in low light. I mostly use 20/1.7 and 45/1.8 in those situations which is why I've only lately noticed anything strange

It is also about in dark environment. I first found the problem on GX85 shooting a Lantern Carnival in evening in a park. Although AF confirmed (fast as normal), some results were OOF.

I recall having similar experience with fireworks. Chalked it up to inexperience at the time.

Might be of the high ISO I used, and might be the slow shutter speed for the 150 end. But a few OOF shots were within usual 1/60" that normally I should have sharp images from it.

So, I usually shall half hit shutter for multiple times to lock focus repeatedly and the result is perfectly fine. It is mainly used on GX7.

Good tip. Shall try if happens.

Having said that, not find underexposed will affect AF speed.

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Albert

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