At 02:24 8/7/01, Jeff Bellin wrote:
Anyway I also got the extension tube with it. So now my question is; is
there a "light loss" when using the tube and if so how much do you figure
it would be? Are we talking an f stop or so?
Thanks again to everyone for their help,
Jeff Bellin
Newton, MA
Additional note: When thinking about probable subject brightness and
planning likely exposure settings for film speeds, f/2.5 is 1/3 stop faster
than f/2.8 (and therefor 2/3 stop slower than f/2). It's not an exact
"half stop."
-- John
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