Hi Tom and All,
Tom brings up an interesting subject and a very true concern. That is,
depth of field at close ranges with long teles.
I was wondering if lens design ie. "internal" focus / Tamron or Tokina 300mm
vs "helicoid" / standard Zuiko 300mm could make a difference in the depth of
field if all else is equal.
To put my question another way. Will the depth of field be exactly the same
at 20 feet and at f5.6 with both types of lenses? Could the design of the
lens increase or decrease this depth?
I understand that the minimum focus could be and usually is different.
Any ideas?
Buddy Walters
-----Original Message-----
Shooting woodchucks in my backyard with a 300mm 2.8 at 20 feet I only had a
depth of field that made it difficult to have their nose, eyes and ears
sharp. A distance of less than 2 inches! This was a full head and shoulders
portrait.
I spent an afternoon photographing ducks -
I was using ASA 400 in full sunshine using a 300mm F2.8 lens at about F5.6.
Tom
Snip.
PS, Tom I just wanted to add, shooting at 1/1,000+ per sec with ASA 400 is
down right cheating!!!
You are here by ordered to only shoot 50 and 100 asa from here on!!!
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