I absolutely despise all this "crop factor" nonsense. It's so
ridiculous.
There's no such thing as a crop factor. Field of view is a property of
a focal length combined with a format. Normal on 35 film is 50mm,
normal on FourThirds is 25mm, normal on 645 is 75mm, etc. That's all.
My FourThirds cameras include field of view choices from 89 to 4.4
degrees on the diagonal, using lenses with focal lengths from 11 to
280 mm. A Pentax M50/1.4 provides an excellent long-portrait-tele
field of view.
80-90% of my G1 photos to date have been made with the 25mm lenses I
have. A near perfect kit for the G1, for my photography, will have the
lenses 7-14/4, 20/1.7, 25/2.8 (and f/1.4), 40/1.4 and 75/2.5 in it. I
don't have them all yet ... two aren't available yet ... but that's
where it's going.
Godfrey
On Jan 15, 2009, at 12:56 AM, Jaume Lahuerta wrote:
Before doing something that you can regret, remember the conversion
factor that 4/3 and m4/3 introduces in a 35mm lens, which is 2
instead of 1.5 for APS-C.
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