Tweeters,
Zeiss has had on the market for about the last 3-4 years fabulous 20 x 60
prism-stabilized binoculars. I wasn't aware of such a thing until I had the
opportunity to "test drive" a pair during a 3 month pelagic bird and marine
mammal survey. I've spent many months at sea with these since and they are
easily the ultimate seabirding binocular! On medium to large research ships
the stabilized image of, say a tricky Cookilaria petrel, is unequaled in
marine optics. I felt the image was even better than that of the marine
mammal observer's massive ship-mounted 25 x 150 Fujinons, but only because
of the unique and very effective stabilizing device. The image is nowhere
near as bright as the Fujinons. But then, not much else is. However, I
haven't had the chance to try the Zeiss on a normal pelagic trip, where one
is challenged to stand, let alone use binoculars. Two major drawbacks: the
narrow field of view and relatively poor light gathering capabilities. Also
these binoculars are definatley NOT eye-glass user friendly. Many, even non
eye-glass wearers, had trouble getting on a bird, especially one flying.
After a while however, I had no problem. Although they are large, they are
remarkably light for their size. Still, I wouldn't want to wear them for
more than 10 minutes!

The Zeiss are not something you would take on a regular outing unless you
have them on a tripod looking at gulls, shorebirds, etc. Also the price (in
1993) of US$4500.00 is definately in the high end!

Reading the postings I realize that there are a number of prism-stabilized
binoculars now available. I would be inclined to wait for the inevitable
upgrades and improvements to the technology. Maybe they will find a way to
avoid compromising light for stability.

Good luck with your search

Michael Force
2304 Prince Albert Street
Vancouver, B.C.
Canada
V5T 3W5
(604) 873-6184