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[OM] B&K Astrofocuser (giant relative of Varimagni Finder)

Subject: [OM] B&K Astrofocuser (giant relative of Varimagni Finder)
From: "Michael A. Covington" <covington@xxxxxxxxxxxxxx>
Date: Fri, 18 Sep 1998 08:58:41 -0400
Answering Paul Schings' question, the B&K Astrofocuser is a new product less
than a year old, definitely still in production and advertised in the small
ads in the back of Sky and Telescope.  The maker is:

B&K Products, 500 E. Arapaho Road #611, Richardson, TX 75081, U.S.A.

I have no connection with them, but they sent me a sample and I tried it
out.  More information, including an optical diagram, is in my forthcoming
book, Astrophotography for the Amateur (which has quite a lot of Olympus
trivia, actually).  The basic idea is that you use a standard telescope
eyepiece (1.25-inch-diameter tube) together with this device to make a super
eyepiece magnifier.  The disadvantage is that the Astrofocuser occupies the
tripod socket on the camera, so you have to be using a telescope or lens
that is supported separately.


Michael A. Covington  /  AI Center  /  The University of Georgia
http://www.ai.uga.edu/~mc  http://www.mindspring.com/~covington   <><



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