Lepp has a lot of good macro advice at
http://www.leppphoto.com/education/photoalley/november01.htm
Tom
On Friday, December 28, 2001 at 10:45, Dean C. Hansen
<olympus@xxxxxxxxxxxxxxx>
wrote re "[OM] T10 flash and Ring Cross Polar" saying:
> A couple years ago, I came across an explaination of
> cross-polarization in George Lepp's "Beyond the Basics; Innovative
> Techniques for Outdoor/Nature Photography" (pp. 40-48), and I built a
> device to hold polarizing material in front of two T32's. I use this
> set up to photograph jumping spiders (4-8 mm long) with a 38mm macro OM lens
> and telescopic autotube on an OM4T. A polarizing filter on the lens, set at
> 90 degrees to the gratings of the polarizing material on the flashes,
> completes the set up.
> The results are very nice: colors are more natural, and I can
> eliminate strong reflections that look like white stripes on the
> spider. I am very happy with the results. Cross polarization is a
> very, very useful technique for some subjects. The downside is the
> amount of light lost (Lepp says up to 5 stops).
> While the OM ring flashes can take an OM cross-polarization filter, you
> are not confined to using the special OM ring flashes if you want to use
> cross-polarization--with a little time in the shop, you can make a
> cross-polarization set up for use with any of the other (e.g., T20 & T32) OM
> flashes. Dean
------------------- http://groups.yahoo.com/group/ottawa-
photo-clubs
tOM A. Trottier, ICQ:57647974 http://abacurial.com
758 Albert St, Ottawa ON Canada K1R 7V8
+1 613 860-6633 fax:231-6115 N45.412
W75.714
"The moment one gives close attention to anything,
even a blade of grass, it becomes a mysterious,
awesome, indescribably magnificent world in itself --
Henry Miller, 1891-1980
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