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- Newsgroups: sci.astro
- Path: sparky!uunet!digex.com!rbunge
- From: rbunge@access.digex.com (Robert Bunge)
- Subject: Re: Reticle question??????
- Message-ID: <1992Sep16.022624.18875@access.digex.com>
- Organization: Express Access Online Communications Service, Greenbelt, Maryland USA
- References: <1992Sep14.160703.1669@gnv.ifas.ufl.edu> <1992Sep15.170708.3705@sfu.ca>
- Date: Wed, 16 Sep 1992 02:26:24 GMT
- Lines: 48
-
- In article <1992Sep15.170708.3705@sfu.ca> palmer@sfu.ca (Leigh Palmer) writes:
- OOB>In article <1992Sep14.160703.1669@gnv.ifas.ufl.edu> ja@gnv.ifas.ufl.edu writes:
- >>Hello Netters,
- >>
- >>I'm trying to build a finder scope from half a pair of binocs and
- >>I need some advice. I want to put cross hairs in and don't know
- >>where to put them. I tried just attaching them across the bottom
- >>of the ocular mounting but they were not visible. I know that with
- >>microscopes the reticle scales are focuable. Is this just a matter
- >>of trial and error getting this thing placed for my specific binocs?
- >
- >Since it appears you have already disassembled the monocular you can probably
- >make the situation no worse, so try the following experiment:
-
- I'd just like to point out that you might try the monocular _without_
- a crosshair. It turns out that the human eye/brain is pretty good at
- finding the center of a circle. This is especially true if you can
- see the entire field of view. Try it, you might find that it works.
- I've made my own finders for years, almost always with commercial,
- off the shelf eyepieces. I've noticed that when people borrow my
- telescope to look at something, they normally comment about the lack of
- a crosshair in the finder, but then procede to find what they are looking
- for. Often, afterwards, they comment that the crosshairs aren't really
- needed anyway.
-
- Bob Bunge
- rbunge@access.digex.com
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