Quote:
Originally Posted by joe_smith
Unreal images Al
"negative projection" new one on me what is it mate?
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Negative projection is when you use a lens like a barlow or powermate to increase the focal length of your scope. Other methods include prime focus, secondary focus, etc, afocal, positive projection, eyepiece projection, etc. If you do some searches in IIS you'll find some excellent threads where these have been discussed before.
Al.