Last week, I was shooting some welders.
My ultimate goal was to shoot them with a Hasselblad and a 150 f4 lens.
(No internal meter.)
Since these exposures are obviously tricky, I started with my Nikon D-1
and a Tamron 28-70 f2.8
I was getting some decent exposures - nothing great, but certainly
within tolerance for a first attempt. So I decided to switch over to the
Hassy using the same readings.
Since the Nikon was running at ISO 200 and my provia is 100, I gave it a
full stop. I got the lab results today: $%#^$%. (Translation: way too
dark and looks like s**t.)
So my question is: what's the relationship between a medium format Hassy
with a 150 f4 lens, and a 35mm Nikon with a 28-70 f2.8 lens (running
close to 70 if not full on)?
I assume there's a very straight-forward (though possibly hard to
follow) explanation having to do with the difference in lens designs
rather than a format comparison or a digital vs. analog thing (as my lab
guy surmised.)
Barry
Received on Wed Jul 6 00:55:32 2005
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