Brian Fancher wrote:
While the advantage of IS is certainly most pronounced at slower shutter
speeds, its use guarantees a greater percentage of all shots taken will be
keepers, provided the rest of the technique is there. Even a 1/500 shot can
be irritatingly unsharp. IS will not cure all ills but it can give a
working pro a higher percentage of keepers in dynamic situations.
A 70-200 f2 would be too large and unwieldy to use in the same way the
current lenses are. It would, however, make for a much more interesting
f4.5 with the 2x converter! Then again, the promise of DO could let both of
us have our cake and eat it too: a 70-200 f1.8 DO IS would probably size
out similar to today's lens. Of course such a lens is pure and
poorly-informed conjecture on my part. I'm still loyal to my trusty 80-200
f2.8L! ;>
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Sorry but I disagree. At 1/500 my shots are sharp with or without IS.
The DO lens would NOT be large if you consider what the DO technology
is doing for the 400mm lens. This is my point. As to your trusty
80-200mm F2.8L, I doubt IS would improve your photos at 1/500th seconds.
at 200mm if you use the reversal for speed rule, the minimum speed at 200mm
is 1/250 seconds. At 1/500 you double that.
Peter K
(Been there, done that, have the IS Lens)
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