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Brand Name Rating # of Ratings
Willmann-Bell Clearance: *2nd* The Night Sky Observer's Guide - Vol 1, Autumn & Winter [By Kepple and Sanner] 4.0 1
DGM Optics DGM Optics NPB Narrow Pass Band Nebula Filter 3.0 1
Willmann-Bell Engineering, Design and Construction of String Telescopes [By Highe] No Reviews 0
Willmann-Bell Epic Moon [By Sheehan and Dobbins] No Reviews 0
Willmann-Bell Epic Moon [By Sheehan and Dobbins] No Reviews 0
GSO Flat Base Plate (Type 3) 5.0 8
Willmann-Bell Fundamental Ephemeris Computations [By Heafner] No Reviews 0
Willmann-Bell Fundamentals of Celestial Mechanics, 2nd Ed. [By Danby] No Reviews 0
GSO GSO 0.965"/1.25" 45-deg Hybrid Erect-Image Prism Diagonal 3.0 1
GSO GSO 0.965"/1.25" 90-deg Hybrid 99% Dielectric Mirror Diagonal with Compression Ring 4.0 1
GSO GSO 0.965"/1.25" 90-deg Hybrid Erect-Image Prism Diagonal 4.0 7
GSO GSO 0.965"/1.25" 90-deg Hybrid Mirror Star Diagonal 4.9 9
GSO GSO 1.25" 0.5x Focal Reducer 4.8 40
GSO GSO 1.25" 2.5x Apochromatic Barlow Lens # BL251 4.8 38
GSO GSO 1.25" 2x "Shorty" Achromatic Barlow Lens # GS2BL 4.7 60
GSO GSO 1.25" 3x ED Barlow Lens 4.6 14
GSO GSO 1.25" 45-deg Erect Image Amici Prism Diagonal # PD45 4.2 9
GSO GSO 1.25" 5x Apochromatic Barlow Lens # BL501 4.3 18
GSO GSO 1.25" 90-deg 99% Dielectric Mirror Diagonal 5.0 1
GSO GSO 1.25" 90-deg 99% Dielectric Mirror Diagonal with Compression Ring 4.8 37
GSO GSO 1.25" 90-deg Erect Image Amici Prism Diagonal # PD90 4.8 20
GSO GSO 1.25" 90-deg Mirror Star Diagonal for Refractors # GSST 4.7 23
GSO GSO 1.25" Camera Projection Photography Eyepiece - 32mm Plossl 5.0 5
GSO GSO 1.25" Camera Projection Photography Eyepiece - 40mm Plossl 4.8 6
GSO GSO 1.25" Color / Planetary Filter - #11 Yellow / Green 4.9 7
GSO GSO 1.25" Color / Planetary Filter - #12 Yellow 5.0 2
GSO GSO 1.25" Color / Planetary Filter - #15 Dark Yellow 5.0 6
GSO GSO 1.25" Color / Planetary Filter - #21 Orange 4.9 7
GSO GSO 1.25" Color / Planetary Filter - #23A Light Red 5.0 3
GSO GSO 1.25" Color / Planetary Filter - #25 Red 5.0 1
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