samyang 45 1.8 strange issue

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timewaster Regular Member • Posts: 422
samyang 45 1.8 strange issue

hi,

I am trying out my new samyang 45 1.8 with a sony a7r3 and found a weird issue. The focusing is off around 50% of the time when i shoot wide open (1.8-4.0) and at night. The focus is off and the shots are blurry (I am using a tripod). when i use a smaller aperture (f8) the issue goes away. Also when i use the focus magnifier before hitting the autofocus button the issue also goes away. During the day there is also no issue.

Should i return it for another copy?

Or is this normal?

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