Sky-Watcher Black Diamond 90mm Refractor Telescope with AZ3 Mount

This high quality 90mm altazimuth refractor telescope is an excellent choice for the more serious beginning astronomer or terrestrial observer. It's a powerful optical instrument with 213x the light gathering capability versus the naked eye and the objective lens is designed to yield the finest images available in its class.

  • Diameter/Aperture: 90mm
  • Focal Length: 900mm
  • Multi-coated achromatic objective lens
  • Aluminum tube
  • Dew cap/Sunshade
  • Adjustable Objective-lens Cell (available in 2001)
  • 6x30 finderscope for easy location of objects
  • Pre-assembled tripod for convenient and quick assembly
  • Smooth rack-and-pinion 1.25" focuser
  • 65% more light gathering power than 70mm
  • Perfect for serious beginners

    • Product Info

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    Price $CAN
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    Sky-Watcher Black Diamond 90mm Refractor Telescope with AZ3 Mount--On Sale Reg $349.95--672N053 $279.95 add to basket


      672N053
    Optical Design Achromatic Refractor
    Diameter 90mm
    Focal Length 900mm
    F/ratio f/10
    Highest Practical Power 180x
    Fainest Stellar Magnitude 12.5
    Resolving Power (Arc Sec) 1.3
    Finderscope 6x30
    Diagonal 45°
    Focuser Diameters 1.25"
    Slow-motion Control RA & DEC
    Piggyback Bracket Yes
    Accessory Tray Large
    Tripod Aluminum
    Motor Drive Single Axis (Optional)
    Tube Dimensions 9cm x 91cm
    Tripod Height 71-123cm
    Total Weight 11.7kg