All this talk about big glass for birding is kinda intruiging.
It seems that you can never have too long of a lens, but the
usability and keeper ratio goes down as the focal length goes
up. 400-600mm (35mm equivelent) focal length seems to be about
the limit for overall usability for anything moving.
I tried my hand at photographing flying eagles with the Zuiko
600/6.5. That sent me back to photographing rocks with
wide-angle lenses for a while.
Most wildlife photographers are equipped for up to about 1200mm,
but the bulk of the keepers/sellables are going to be in the
400mm range. Unusual/rare birds and nestings being obvious
exceptions. The problem with photographing at wildlife refuges
is the location of the blinds/huts are too far from the good
action and the birds are leary of the noise caused by the
amature-hour photographers that can't keep their mouths shut. My
best bird pictures have come from a silently paddeled/coasted
canoe. When coming around a bend I sit down low in the canoe to
break up my profile as much as possible--wear a wide brim hat
and a camo head net. No quick moves and keep your profile as
low as possible. Gotta hide your eyes.
AG
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