Snapshooter's Diary

By jesalonen

Penhole

I had some spare time today to test the Pinwide, which is a pinhole cap for E-P1. I had great expectations, but as usual - great expectations will inevitably let you down.

OK, pinhole images are supposed to be soft AFAIK but I just can't stand images where nothing is actually sharp, or even near sharp.

Theoretically, a pinhole should give enormous DOF. And it does, but nothing came out sharp in the entire DOF area. I first thought that I'm doing something wrong, but that would be practically impossible, even for me.

So, the answer is diffraction. If a camera with small-sized sensor will suffer from diffraction at apertures smaller than say f11 or f16, what can you expect when aperture is f96 - f128?

And, to gain that softish, eerie picture style that is so distinguishing for real pinhole images, I suppose one needs a real large negative - at least 6x6.

So, no more penholes for me. Tomorrow, perhaps some in-camera HDR testing...

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