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Re: [OM] Mythical Olympus 4/3 systems and depth of field

Subject: Re: [OM] Mythical Olympus 4/3 systems and depth of field
From: Winsor Crosby <wincros@xxxxxxxxxxxxx>
Date: Wed, 5 Feb 2003 01:40:20 -0800

On Tuesday, February 4, 2003, at 11:38  PM, Richard F. Man wrote:

One of the "give away" for digital pics is the immense depth of field. I think something like for the teeny digicam sensors, the equivalent DOF even at wide open of F2-F3 would be more like the DOF of F10 in 35mm....

So... while I should know better, being a geek at all, I believe this situation is still the same for the 4/3 systems, even with lenses that are designed for the small sensor size? Is that correct?


Still true, although the 4/3 is a little bit larger than the fixed lens lot. The other result of the small lens is diffraction at small apertures. Many of these little cameras just cycle between their widest opening and F8 because of the galloping fuzzies that would occur at F11 or F16. Remember, Ansel Adams in his youth was in a club called F64 which is commonly used in large format for sharpness and depth of field. 35mm starts to soften at F16 or F22.


Winsor Crosby
Long Beach, California, USA


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