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Old March 13, 2014, 07:15 AM   #13
Bart B.
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Join Date: February 15, 2009
Posts: 8,927
There's a slight chance that scope's AO is a full turn off.

With the AO in all the way, what's the range it focuses good at?

Wogpotter, you said Camera lenses create a "real" image onto a fixed plane, a telescope (or sight, or monocular) collects this image & passes it on to a second set of optics (the eyepiece group) which project out as a "Virtual image" appearing at infinity so the human eye can focus inside the tube. That's exactly what happens when I mount my Nikon SLR camera lenses on a Nikon Lens Scope Adapter which focuses the len's aerial image (at its focal plane where film or digital sensors are in cameras) so the eye sees it at infinity. Prisms inside erect the inverted aerial image. It's got an adjustment for focus on that aerial image exactly like a rifle scope. Focal length is 10mm so a 200mm camera lens converts to a 20X telescope.

http://www.kenrockwell.com/nikon/lsc.htm

Last edited by Bart B.; March 13, 2014 at 08:13 AM.
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