Subject: [Tweeters] Re: Value Bins; off-topic
Date: Sep 16 16:33:56 2009
From: Mike Wagenbach - wagen at u.washington.edu


The Pete's Pick list includes two Leupolds I've been interested in.

I would like to check out the Yosemite 6x30. My young nephew (who
will be a better birder than I before he finishes 2nd grade, at this
rate) expressed an interest in these recently. On paper they look
good, except for the long close-focus distance (16 ft.) I'd like a
pair of inexpensive waterproof binoculars to keep under the car seat,
so these are on my list.

The Katmai 6x32 enjoyed a very enthusiastic review on Cloudy Nights
http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/1766625/page/6/view/collapsed/sb/5/o/all/fpart/4/vc/1
I compared them at Anacortes Telescope to my Bushnell Legend 8x32
(which at the time I got them a few years ago were the cheapest phase-
corrected roofs I had seen). The Katmai were nice but not
substantially better (except in weight) so I did not buy them. If you
wanted the lighter weight, greater depth of field or bigger exit
pupil, which is nice for ease of finding the view, the Katmai might be
worth the extra money.

The Bushnell Legend 8x32 is worth a look for only $220 (Optics
Planet), if you do not require a more prestigious brand name. The
image is not sharp far from the center of the field, but I only
consider that a problem for astronomy, since in terrestrial use I
naturally center the subject. On-axis, they won't be confused with
$1000 bins, but the sharpness is good. They don't have a lot of
spatial distortion near the field edge, so when panning there is not a
weird effect of unnatural motion in the image. They are quite well
baffled to reject stray light (probably due to the ridges around the
inside of the barrels behind the objective lenses), so the image
remains very nearly as good even when looking dangerously near the
sun, or at birds on the water when bright reflections off ripples are
in or near the FOV. (I find poor baffling to be one of the biggest
failings of many otherwise adequate binoculars.) I can very nearly
focus on my toes, so they are good for insect watching. The field of
view is generous. They are not light, but for value bins I can't
really make any other serious complaint.

Mike Wagenbach
Seattle