Alignment Telescope II
Well-suited to applications not requiring a micrometer. Alignment telescopes are made of heavy walled, heat treated, alloy steel tubing meeting AIA specifications. Length: 14". Available in magnification 20x at 2 inches, 30x at infinity. Effective aperature: 1.34". Resolution: 3.9 arc seconds. Also available in 51-1100, which has a 6.978" barrel. The outside diameter is 1.7494 to 1.7497". Length: 9.5". Magnification 20x at 2 inches, 30x at infinity. Effective aperture: 0.925". Resolution: 6.0 arc seconds.
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