One other question on this subject: I have one eye that is so much worse than the other that it is pretty useless with binoculars. Any suggestions for a good monocular? > -----Original Message----- > From: Matson, Robert [mailto:ROBERT.D.MATSON@saic.com] > Sent: Saturday, June 15, 2002 7:04 PM > To: 'SeeSat-L ' > Subject: RE: binocs > > > Hi Linda, > > Steve's binocular suggestions are all good. I can add a few > more suggestions. If the binoculars you'll be buying will > be used primarily at night, then you'll want to match up > the size of the exit pupil with the diameter of your own > dilated pupils. Depending on your age, your pupils could > be 8mm, 7mm, 6mm or less (getting smaller as you age). > > To determine the exit pupil size for a pair of binoculars, > divide the objective size in mm (the second number) by the > magnification (the first number). For example, 7 x 50 > binocs have an exit pupil of (50/7) or ~7 mm. > > I use 8 x 56 binoculars made by Celestron -- it's just > about optimal for satellite viewing. A little more power > than the 7 x 50's, but still relatively lightweight. Beyond > 8x, it's difficult to hold the image steady (though if you're > willing to spend a lot of money, they do make image-stabilized > binoculars). > > Best, > Rob > > ----------------------------------------------------------------- > Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' > in the SUBJECT to SeeSat-L-request@satobs.org > http://www2.satellite.eu.org/sat/seesat/seesatindex.html > ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@satobs.org http://www2.satellite.eu.org/sat/seesat/seesatindex.html
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