On Mon, 7 Mar 2005, Frantisek wrote: > JW> Thanks for the info, I can't see me using an f/1.4 though - little > JW> expensive :) Any idea of the magnification using the full lens? > > IIRC the formula is > > M = 250 / f > > where M is magnification and f is focal length. Thus a 50mm lens would > be a 5x loupe.
Where does the aperture come into play in this? K
