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Brand Name Rating # of Ratings
Optolong Optolong UV / IR Cut Filter - 1.25" 5.0 6
Optolong Optolong UV / IR Cut Filter - 2" 5.0 6
Optolong Optolong UV / IR Cut Filter - 31mm Round Unmounted 5.0 6
Optolong Optolong UV / IR Cut Filter - 36mm Round Unmounted 5.0 6
Optolong Optolong UV / IR Cut Filter - Clip Filter for Canon EOS Cameras with APS-C Sensor 5.0 6
Optolong Optolong Venus & Ultraviolet Venus-U Filter - 1.25" 5.0 1
Optolong Optolong Venus & Ultraviolet Venus-U Filter - 2" 5.0 1
Willmann-Bell Portable Newtonian Telescopes [By Highe] No Reviews 0
Willmann-Bell Practical Computer-Aided Lens Design [By Smith] No Reviews 0
Siebert Optics Siebert Optics Siebert Optics 2" 36mm Observatory Series 5.0 1
Willmann-Bell Solar Astronomy Handbook [By Beck et. al.] No Reviews 0
Willmann-Bell Star Clusters [By Archinal and Hynes] No Reviews 0
Willmann-Bell Star Testing Astronomical Telescopes, 2nd Ed. [By Suiter] No Reviews 0
Willmann-Bell SYNOPSYS: Supplement to Joseph M. Geary's Introduction to Lens Design [by Dilworth] No Reviews 0
Willmann-Bell SYNOPSYS: Supplement to Joseph M. Geary's Introduction to Lens Design [by Dilworth] No Reviews 0
TAL TAL Super Plossl 25mm 3.0 1
Willmann-Bell Telescope Optics [By Rutten and Venrooij] No Reviews 0
Willmann-Bell Telescopes, Eyepieces & Astrographs [By Smith et. al.] No Reviews 0
Telescope Solutions Telrad Dew Heater 5.0 3
Willmann-Bell The Arp Atlas of Peculiar Galaxies [By Kanipe and Webb] No Reviews 0
Willmann-Bell The Best of Amateur Telescope Making Journal - Vol 1 [By Cook] No Reviews 0
Willmann-Bell The Best of Amateur Telescope Making Journal - Vol 2 [By Cook] No Reviews 0
Willmann-Bell The Dobsonian Telescope [By Kriege and Berry] No Reviews 0
Willmann-Bell The Night Sky Observer's Guide - Vol 1, Autumn & Winter [By Kepple and Sanner] 5.0 2
Willmann-Bell The Night Sky Observer's Guide - Vol 2, Spring & Summer [By Kepple and Sanner] 5.0 1
Willmann-Bell The Night Sky Observer's Guide - Vol 3, The Southern Skies [By Kepple et. al.] No Reviews 0
Willmann-Bell The Orrery [By Foster] No Reviews 0
Willmann-Bell The Year-Round Messier Marathon Field Guide [By Pennington] No Reviews 0
University Optics University Optics Abbe Orthoscopic 12.5mm 4.0 1
University Optics University Optics Abbe Orthoscopic 18mm 5.0 1
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