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[OM] Re: More on lens resolution

Subject: [OM] Re: More on lens resolution
From: Tim Hughes <timhughes@xxxxxxxx>
Date: Tue, 19 Apr 2005 05:10:42 -0700 (PDT)
Of course, it also depends on what color object you are trying to resolve vs 
B/W. The Digi camera red or blue resolution is half of that of green. For 
different reasons the film resolution varies with color too, depending on order 
of emulsion layers and scattering.
If they really put in an effective anti-aliasing filter it would limit the 
resolution to that of the lowest resolution color making half the green pixels 
redundant. The idealised anti-alias filter should vary with wavelength but it 
seems unlikely they actually achieve that. 
The old lenses may actually be perfect for acting as an anti-aliasing filter in 
some cases! 
Tim Hughes

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