In a message dated 98-04-10 10:57:51 EDT,
wle you write:<< example:
outside, sunny day, film speed at asa 125, shutter speed 1/125
aperture where meter indicates correct:
50mm fixed lens : f/16
zoom on 70mm : f/11 [+1 stop]
zoom on 210 mm : f/5.6 [+3 stops]
i trust the 50mm because:
a. it does the "sunny 16" test correctly and >>
Snip!
Hi Ele,
A couple of questions?
What is the subject you are metering on for your test? Are you mixing spot
and average meter readings? Because of the different focal lenths, the meter
will read a different area with the 50mm than the 200mm. Try a test again on
a large "medium tone" subject ie. side of a house, with very even light.
Do you have a filter on one of the lens?
Good Luck !
BW
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