On Wed, 09 May 2001 12:25:49 +0200, you wrote:
>Telescopic hood for zooms will also be very good, as zoom hoods are optimal
>only for the wide focal length. I think of a telescopic hood for a 70-210
>coupled with the zoom position. That will be great!, but will also be
>expensive :-(
>
>The hood of the 28-135, for instace, is a very bad one for the 135mm
>position. A cheap, collapsable rubber, standard 50mm hood, will be better
>in this position.
Pardon me if I'm being dense, but why is it "very bad" for tele?
Provided there is no vignetting at the wide end, isn't the real issue
the angle of the light source (sun) to the front of the lens? I can
see that with telephoto focal lengths you could make use of a longer
lens hood due to the narrower angle of view and thereby achieve more
possible angles to the light source, but I cannot see how the lens
hood optimized for the wide end (where it is most critical) could
possibly be "bad" for the long end. Any protection is good.
Ken Durling
Website http://home.earthlink.net/~kdurling/
Alternate e-mail: [EMAIL PROTECTED]
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