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OptiCalc is a utility for photographs made for calculating depth of field, light condition, 35mm equivalent focal, minimum shutter speed, field of view, etc. from three input parameters: focal length, aperture and subject distance. It works for different types of cameras and it is possible to add others by editing a plist file.

What's New

Version 0.3.2: Russian localization (Thanks to Michael Krekin).


Mac OS X 10.4.11 or later

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Garbanzitoagain Member IconReview+0

nice, but very utilitarian; does what it says, but provides no guidance; you have to know a bit of theory to understand the interface, and you have to know what camera in the drop-down menu (hidden in prefs) is comparable to yours, for example my Pentax K200D camera has a field of view comparable to Nikon D300, not Canon EOS 50D (though both are nominally APS-C) (a configurable sensor size might be more helpful)

after getting acquainted, i used OptiCalc to get exact figures for how aperture and distance regulate depth of field using the near-macro on one of my lenses; for example by backing up six inches from closest focus (from .28 meters out to .43), the depth of field at f8 increases from 1cm to 2.6cm -- magnification also drops, but i can sometimes get a better shot with a bit more depth of field; alternatively at going to f20 gets me about the same depth of field without losing magnification

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Version 0.3.2
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> 4 1


Current Version (0.x)


Downloads 1,835
Version Downloads 1,471
License Free
Date 03 Feb 2009
Platform OS X / PPC 32 / Intel 32
Price Free
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