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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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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