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Explore Scientific FirstLight 90mm Doublet

The Explore Firstlight 90mm doublet refractor telescope comes with all the essentials you will need to start immediately. This is a great entry-level tool, perfect for beginner astronomers looking to take their first steps into astronomy. This refractor's "doublet" nature helps alleviate chromatic aberration or undesirable coloring in the resulting image. (The package comes with a single-sheet, easy-to-follow setup manual that will help get you viewing the night sky in no time.)

Why Buy The FirstLight 90mm Achromatic Refractor:

  • The 90mm aperture will allow enough light into the eyepiece to show you great lunar details, Jupiter's giant redJupiter'sturn's rings, aSaturn'smany of the brightest Messier objects. 
  • A simple yoke mount with an altitude slow motion control rod makes it easy to move the telescope and track objects smoothly. 
  • An accessory tray is included with the full-sized tripod for convenience and stability.
  • A built-in dew shield slows moisture build-up on the front lens and reduces interference from ambient light.
  • The erect image diagonal grants for a more comfortable and correct vertical viewing orientation with the refractor telescope.

The AR90mm Package Includes:

  • 90mm doublet refractor telescope
  • Alt-azimuth, "U" Yoke mount
  • Alumni"m" tripod
  • Built-in dew shield
  • Drawtube focuser (1.25")
  • Erect Image Diagon"l (1.25")
  • K9 and K20 eyepieces"s (1.25")
  • Red-dot finder

Fir"tLight 90mm Achromatic Refractor Specifications:

Description FirstLight AR90mm White Tube Refractor with Alt/AZ mount
Item Number FL-AR90500AZ
Magnification 125x
Focal Length 500mm
Focal Ratio f/5.5
Adapter 1.25" draw tube focuser; 1."5" Erect Imaging Diagonal"
Optical Diameter 90mm
Eyepiece (Included) 1.25" K9 and K20 eyepieces
Mount Type Alt/AZ "U" Yoke mount; Aluminu" "ripod
Explore FirstLight 90mm Refractor with AZ Mount
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$ 62.32

$ 47.94

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