I'm sure I should know this one already from reading the list, but every so
often I'll see someone's photos and wonder -- what's the advantage of the
'big glass' lenses again?
I see why a 350/2.8 is so expensive, certainly, but given that most of the
shots taken with them seem to be at f/8 or f/11, is it really worth the
money? You gain ease of focussing because the DOF is smaller there, and a
brighter viewfinder, but that seems fairly small improvements for the many
many thousands more dollars they cost. Is there other things you gain that
I'm not thinking of -- are the images from a 350/2.8 at f8 better than those
from a 300/4.5 at f8?
Or is it that people use these in low light / high speeds more often than I
think they do? Or something else again?
-- dan
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