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rf 16mm 2.8 - Raw Images (Normal Distance + Closeup)

Started Oct 16, 2021 | Discussions thread
PicPocket Veteran Member • Posts: 5,897
Re: rf 16mm 2.8 - Raw Images (Normal Distance + Closeup)

Karl_Guttag wrote:.

  • Wow, the closeup picture looks horrible from about 1/2 way out from the center. You don't even have to look at the picture magnified to tell it is a mess. It might be "field curvature," as in that focus varying from the center to the outside. It would be interesting to see what happens if your focus point was in one of the corners. Seeing this, I ran a quick check on my RF24-240, and when focused at the minimum focus distance and 24mm, and sure enough, it too looks horrible compared to "normal" distance shots. If the RF24-240 at 24mm focuses in the corner, the corner looks much better, but the center gets blurry. Probably best not to use either lens for closeups.

Surely looks like field curvature to me, based on how it’s behaving with successive smaller f stops. Not surprising for a compact wide angle at close focus distance

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