Categories:
  • Telescopes
      Refractors
      --------------------------
        Up to 80mm
        --------------------------81mm - 110mm
        --------------------------111mm - 140mm
        --------------------------Larger than 140mm
        --------------------------
      Reflectors (Newtonian)
      --------------------------
        Up to 8 inches
        --------------------------Larger than 8 inches
        --------------------------
      Dobsonians
      --------------------------
        Up to 8 inches
        --------------------------10 - 20 inches
        --------------------------Larger than 20 inches
        --------------------------
      Compound Telescopes
      --------------------------
        Schmidt-Cassegrain
        --------------------------Maksutov-Cassegrain
        --------------------------Maksutov-Newtonian
        --------------------------Ritchey-Chretien
        --------------------------Other
        --------------------------
      Spotting Scopes
      --------------------------Test Category
      --------------------------
  • Binoculars
      Standard (Up to 50mm)
      --------------------------Large (51mm - 99mm)
      --------------------------Giant (100mm and Larger)
      --------------------------
  • Optical Accessories
      Barlow Lenses
      --------------------------Binoviewers
      --------------------------Diagonals
      --------------------------Eyepieces
      --------------------------
        Fixed Focal Length Eyepieces
        --------------------------Reticle Eyepieces
        --------------------------Zoom Eyepieces
        --------------------------
      Filters
      --------------------------
        Lunar and Planetary Filters
        --------------------------Nebula and Light Pollution Reduction Filters
        --------------------------Specialty Filters
        --------------------------
      Finder Telescopes
      --------------------------
        Unity (1x) and Red Dot Finders
        --------------------------Straight-Through Finders
        --------------------------Right-Angle Finders
        --------------------------
      Focal Reducers
      --------------------------Other
      --------------------------
  • Other Accessories
      Adapters (Mechanical) and Rings
      --------------------------Alignment and Collimation
      --------------------------
        Collimating Eyepieces
        --------------------------Laser Collimators
        --------------------------Other
        --------------------------
      Cases and Covers
      --------------------------Computer Accessories
      --------------------------Focusers and Focusing Accessories
      --------------------------Observing Aids (Everything Else)
      --------------------------Dew Prevention
      --------------------------
  • Imaging
      Cameras - Film
      --------------------------Cameras - CCD and Webcams
      --------------------------Imaging Adapters and Accessories
      --------------------------Cameras - Digital
      --------------------------
  • Mounts/Tripods
      Alt-Azimuth Mounts
      --------------------------Binocular Mounts
      --------------------------Equatorial Mounts
      --------------------------Go-To Mounts with Controllers
      --------------------------Piers and Tripods
      --------------------------Other Accessories (Wedges, Drives, Rings, etc.)
      --------------------------Digital Setting Circles and Object Locators
      --------------------------
  • Solar
      White-Light Solar Filters
      --------------------------Narrowband Solar Filters
      --------------------------Solar Telescopes
      --------------------------Solar Observing Instruments and Accessories
      --------------------------
  • Software/Publications
      Atlases and Maps
      --------------------------Software
      --------------------------
        Amateur Telescope Making
        --------------------------Computational Astrophysics
        --------------------------Education and Multimedia
        --------------------------Image Processing and Data Analysis
        --------------------------Satellite Tracking
        --------------------------Desktop Planetarium and Charting
        --------------------------Toolkits and Observing Utilities
        --------------------------Telescope Control
        --------------------------Space Simulation
        --------------------------
      Books and Magazines
      --------------------------Web Sites
      --------------------------
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List of Products by GSO
 
left Best Rated Products right
1. Plossl / Super Plossl 20mm ststststst    [5.00]
2. Plossl / Super Plossl 25mm ststststst    [5.00]
3. Plossl / Super Plossl 9mm ststststst    [5.00]
4. 2x Barlow - 1.25" ststststst    [5.00]
5. 2x Barlow - 2" ststststst    [5.00]
6. 3x ED Barlow - 1.25" ststststst    [5.00]
7. 2" 90 Enhanced Dielectric Diagonal ststststst    [5.00]
8. Neutral Density Filters - 1.25" ststststst    [5.00]
9. Polarizing Filter - 1.25" ststststst    [5.00]
10. 0.5x 1.25" Focal Reducer ststststst    [5.00]
11. Deluxe Laser Collimator II ststststst    [5.00]
12. 50mm Finder Bracket with Dovetail Base ststststst    [5.00]
13. Crayford Focuser for Reflectors - Single Speed ststststst    [5.00]
14. Crayford Focuser for Refractors - Dual Speed with 10:1 Microfocuser (Non-Rotatable) ststststst    [5.00]
15. Multi-Target Red Dot Finder ststststst    [5.00]
16. 2.5x Apo Barlow - 1.25" ststststst    [5.00]
17. Color/Planetary Filters ststststst    [5.00]
18. 2x ED Barlow - 2" ststststst_half    [4.90]
19. SCT-to-2" Adapter ststststst_half    [4.66]
20. 1.25" 90 Mirror Star Diagonal ststststst_half    [4.50]
21. 2" 90 Enhanced Dielectric Diagonal for SCTs ststststst_half    [4.50]
22. Extension Tubes - 2" ststststst_half    [4.50]
23. Crayford Focuser for Refractors - Dual Speed with 10:1 Microfocuser (Rotatable) ststststst_half    [4.50]
24. Kellner 26mm ststststst_half    [4.33]
25. Plossl / Super Plossl 32mm ststststst_half    [4.33]
26. SuperView 15mm ststststst_half    [4.33]
27. SuperView 42mm ststststst_half    [4.33]
28. 8x50 Right Angle Erect Image Finder Scope ststststst_half    [4.33]
29. Crayford Focuser for Refractors - Single Speed ststststst_half    [4.33]
30. SuperView 20mm ststststst_half    [4.25]
31. 8x50 Achromatic Finder Scope ststststst_half    [4.25]
32. SuperView 30mm ststststst_half    [4.11]
33. Plossl / Super Plossl 15mm ststststst_w    [4.00]
34. Plossl / Super Plossl 40mm ststststst_w    [4.00]
35. Plossl / Super Plossl 4mm ststststst_w    [4.00]
36. SuperView 50mm ststststst_w    [4.00]
37. 1.25" 45 Erect Image Diagonal ststststst_w    [4.00]
38. Moon Filter - 1.25" ststststst_w    [4.00]
39. Crayford Focuser for Reflectors - Dual Speed with 10:1 Microfocuser ststststst_w    [4.00]
40. Crayford Focuser for Reflectors - Dual Speed "Low Profile" with 10:1 Microfocuser ststststst_w    [4.00]
41. 2" 90 99% Quartz Dielectric Mirror Diagonal for Refractors ststststst_w    [4.00]
42. Kellner 32mm st_wst_wst_wst_wst_w   
43. Kellner 42mm st_wst_wst_wst_wst_w   
44. Plossl / Super Plossl 12mm st_wst_wst_wst_wst_w   
45. Plossl / Super Plossl 6mm st_wst_wst_wst_wst_w   
46. SuperView 10mm st_wst_wst_wst_wst_w   
47. SuperView 5mm st_wst_wst_wst_wst_w   
48. 3x Barlow - 1.25" st_wst_wst_wst_wst_w   
49. 2" 90 Mirror Diagonal st_wst_wst_wst_wst_w   
50. 2" 90 Mirror Diagonal for SCTs st_wst_wst_wst_wst_w   
51. Infrared Blocking Filter (IR-Block) st_wst_wst_wst_wst_w   
52. 1.25" - 2" Eyepiece Adapter st_wst_wst_wst_wst_w   
53. Extension Tube 35mm - 2" st_wst_wst_wst_wst_w   
54. Hinged Tube Rings st_wst_wst_wst_wst_w   
55. Crayford Focuser for SCT - Dual Speed with 10:1 Microfocuser (Rotatable) st_wst_wst_wst_wst_w   
56. GS-500 st_wst_wst_wst_wst_w   
57. GS-600 st_wst_wst_wst_wst_w   
58. GS-630 st_wst_wst_wst_wst_w   
59. GS-280 st_wst_wst_wst_wst_w   
60. GS-880 10" f/5 st_wst_wst_wst_wst_w   
61. 5x Apo Barlow - 1.25" st_wst_wst_wst_wst_w   
62. 2" 90 99% Quartz Dielectric Mirror Diagonal for SCTs st_wst_wst_wst_wst_w   
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