Thread: [NOT REQUIRED] Star Testing Astronomical Telescopes
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Old 27-07-2021, 02:19 PM
daz (Darren)
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Star Testing Astronomical Telescopes
Star Testing Astronomical Telescopes: A Manual for Optical Evaluation and Adjustment Volume 2
by Harold Richard Suiter
Last edited by daz; 27-08-2021 at 04:33 PM.