jmai86 Offline Upload & Sell: Off
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I've been out shooting with my new Nikon 16mm fish and while it's a great piece of kit, I have noticed one very strange issue. Shooting at or near wide open, up close to subjects, the depth of field goes from in focus at the focus point, to a normal out of focus transition, and then BACK to sharp focus on the edges of the frame!
Attached is an example from a 16x9 crop, at F2.8.
Notice on the left side of the frame, the scene in the background become sharper as it gets closer to the edge! The buildings were parallel and straight, and did not curve towards me at all, and were actually some distance away (the man was a few feet away and is pleasantly out of focus). This effect is somewhat troubling as it makes the image look like I added an artificial background blur. The effect isn't noticeable at F4 or higher though.
Anyone else experience this with rectangular fisheyes in general?
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