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Knopey
22-06-2006, 9:44am
Ive seen around the traps these things called MTF Charts (Modulation Transfer Function Charts), which relate somehow to lenses and the quality of their image.

I never understood a thing about them! :eek: So found this:

http://www.luminous-landscape.com/tutorials/understanding-series/understanding-mtf.shtml

And now they make (sort of) sense. Just got to remember it now... ;)

p.s. For a 1.6x camera such as the 20/350D, you're only concerned with the horizontal scale up to 13, past that it doesn't matter. (It will make sense after reading the link above ;))