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- Newsgroups: sci.astro
- Path: sparky!uunet!newsflash.concordia.ca!nstn.ns.ca!cs.dal.ca!andromed
- From: andromed@cs.dal.ca (Mike Boschat)
- Subject: Re: Cheap or Expensive Binoculars?
- Message-ID: <BztqKy.7p2@cs.dal.ca>
- Sender: usenet@cs.dal.ca (USENET News)
- Nntp-Posting-Host: storm.atm.dal.ca
- Organization: Math, Stats & CS, Dalhousie University, Halifax, NS, Canada
- References: <mc0ZVB1w165w@bluemoon.use.com>
- Date: Fri, 25 Dec 1992 16:46:10 GMT
- Lines: 43
-
- In article <mc0ZVB1w165w@bluemoon.use.com>, gerry@bluemoon.use.com (Gerard M. Foley) writes:
- |> In 1986, in preparation for a cruise off the Brazilian coast,
- |> nominally to see comet Halley, I bought 7 X 50 K-Mart Focal brand
- |> binoculars for about $50. These rubber encased binoculars gave very
- |> satisfactory performance until recently. Now they are decollimated, so
- |> that star images are double. My visual accomodation can fuse bright
- |> images, in the daytime.
- |>
- |> I don't know what the cost is in eyestrain of the decollimated state
- |> of the glasses, but I want to replace them with a properly collimated
- |> pair. The question is will a more expensive set be less prone to
- |> accidental decollimation than a cheap set? The old ones have cost me
- |> about $8 a year!
- |>
- |> Incidentally, the views of the comet were not especially better than I
- |> had in Ohio, but oh, that Southern Hemisphere sky and the Magellanic
- |> Clouds!!
- |>
- |> gerry@bluemoon.rn My amateur radio callsign is K8EF, and my
- |> packet radio address is K8EF@W8CQK.OH.USA.NA
-
-
- Hello;
-
- I bought a pair of 7x50 Bauch&Lomb for $80 from Canadian Tire store
- and I had no problem with the views till I looked at the stars
- then they too were double and after moving my eyes straining
- they were finally one star this also happened with any binocular
- I got and it could be the human eye.
- Check out ASTRONOMY magazine Nov issue (or Oct) they have
- a special section on buying binoculars and tips..its informative..
-
- SEASONS GREETINGS !!! CLEAR SKIES FOR 1993..
- Clear skies
-
- Mike
-
- JOHN F. KENNEDY ASTRONOMICAL OBSERVATORY
-
- PS;
-
- Tried to send email to gerry@bluemoon.use.com
- but it came back unknown host..
-