21697how to use binoviewer
- May 1, 2011I had the opportunity to buy a used WO binoviewer. I decided to try it out before buying. The strange thing was that the only way to use it successfully with a diagonal on a refractor was to put a separate barlow lens in front of it. Otherwise it was not possible to focus inward enough. Using without a diagonal it worked fine but who wants to use a small refractor without a diagonal? Any thoughts?
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