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edcannon
professor emeritus
Reged: 11/19/03
Posts: 679
Loc: Austin, Texas
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Is aperture king? Does aperture rule?
12/17/06 10:51 PM
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I've seen this rule of thumb repeated recently here and in other forums, and I wonder if it's really true for binoculars. Is aperture king? Does aperture rule? Or is that a simplistic and misleading assertion, verging on a myth, in relation to binoculars (that's carried over unthinkingly from telescopes)?
Of course I believe that besides optical quality (obviously!), BOTH magnification and aperture must be considered. I also think that the user's observing location(s) is(are) relevant. If a person never goes to a dark-sky site or prefers to observe the Moon more than anything else, should he or she get an 8x56 or an 8x40 (or even an 8x32)?
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Ed Cannon - Austin, Texas, USA
As of 23 August 2008 - Celestron Skymaster 12x60
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