OptimumCS for iPhone

An interesting app for iPhone photographers.  From the press release:

If we shoot at too wide an aperture, we lose image resolution due to defocus blur (the blurring of objects in front of and behind our focus distance); at too narrow an aperture, we lose out due to diffraction (the spreading out of light when it passes through small openings). So we need to know, for the scene we’ve composed and the lens we’re using, what the optimum aperture is. And what the optimum focus distance is. This is where OptimumCS comes in.

I learn something everyday.

OptimumCS for iPhone | PhotographyBLOG.

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