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Article #3697Re: are fixed focus binoc's any good for astronomy??
From: Tony Arnerich
Date: Fri, 08 Jan 1993 21:18
Date: Fri, 08 Jan 1993 21:18
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timothy@ccu1.aukuni.ac.nz (Tim Bates) writes: > I am looking at purchasing a pair of binoculas (please pardon the pun). > My question is, are fixed focus binoculars any use for star gazing. The > particular pair Iam thinking of are Jason 10x50s. the never focus design > appeals particularly becasue it appears to be very robust as well as > easy to use. > Timothy Bates Since the intended use is terrestrial, the focal point they are fixed on is rather close by astronomical standards. They could be "fixed out-of-focus" for your use. Also, testing whether you can focus on a very distant subject *during daytime* might not be a good test of whether you can do this with an enlarged eye pupil. I concur with the other response, which suggests that these type of binoculars could be poorly made - they do seem to be at the low end of the price spectrum. I've also never seen an optical instrument from Jason that has impressed me. This paragraph is 100% opinion. As a guess, I'd say that these are a very poor risk, unless you can return them for a full refund.
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From: tonya@hpldsla.sid.hp.com (Tony Arnerich) Date: Fri, 8 Jan 1993 21:18:32 GMT Subject: Re: are fixed focus binoc's any good for astronomy?? Message-ID: <123470013@hpldsla.sid.hp.com> Organization: HP Scientific Instruments Division - Palo Alto, CA Path: arc1-ca.pugleaf.net!sparky!uunet!usc!sdd.hp.com!col.hp.com!news.dtc.hp.com!hpscit.sc.hp.com!hplextra!hpcc05!hpldsla!tonya Newsgroups: sci.astro References: <1993Jan7.090516.70@ccu1.aukuni.ac.nz> Lines: 22