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Explore Scientific FirstLight AR102mm White Tube Refractor with the TwiLight I Adjustable Alt-Azimuth Mount
Explore Scientific FirstLight AR102mm White Tube Refractor with the TwiLight I Adjustable Alt-Azimuth Mount

Explore Scientific FirstLight AR102mm White Tube Refractor with the TwiLight I Adjustable Alt-Azimuth Mount

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Your Price: CAD775.95
Usually ships in 5-7 business days
Part Number:FL-AR1021000MAZ01

Choose Options or Accessories if Applicable

Focal Extenders
Field Flatteners / Coma Corrector
Finder Scopes & Accessories
Focuser and Accessories
Cradle Rings
Dovetail Plates
Filters for Visual and Astrophotography
Simulate views with this scope and various eyepieces help

Designed and built for beginners, the Explore Scientific FirstLight 102mm f/9.8 Alt-Az Refractor Telescope offers a complete observation rig for viewing the Moon, planets, meteor showers, and bright deep-sky objects. The optics are fully multi-coated with anti-reflection coatings to reduce light loss and produce brighter and clearer images with more accurate colors versus non-coated systems.

The scope features a manual alt-azimuth mount with dual-axis control cables that allow users to track objects as they move across the night sky. Its stainless steel tripod provides a stable observation platform, and its adjustable height from 38.5 to 55.5" allows for comfortable viewing by most users. Explore Scientific includes several observational accessories including a 25mm eyepiece that yields 40x, a 90° star diagonal to put the user's head in a comfortable viewing angle, a universal smartphone eyepiece adapter for easy astrophotography, and a wide-field unmagnified red-dot finderscope.

Optical Performance

  • 102mm (4") aperture
  • f/9.8 focal ratio
  • 1000mm focal length
  • Refractor optical design
  • Anti-reflection fully multi-coated optics
  • 2.5" hexagonal rack-and-pinion focuser drawtube is capable of holding heavier imaging rigs without flexing
  • 2" eyepiece holder on the drawtube allows the use of larger eyepieces, and allows the exiting light to completely cover larger imaging sensors


  • Manual alt-azimuth single-arm fork mount
  • Dual-axis slow motion tracking cables
  • Cables terminate in easy-to-manipulate knurled knobs
  • Quick-detach Vixen-style dovetail saddle


  • Three stainless steel leg sections with thumbscrew locks
  • Adjustment range with head: 38.5 - 55.5"
  • Fully-collapsed with head: 42"
  • Fully-collapsed without head: 29.5"
  • Accessory tray doubles as leg stabilizer for additional rigidity and vibration-reduction


  • 1.25" 25mm eyepiece yields 40x magnification
  • 2" 90° diagonal places head in comfortable viewing position when aimed at or near the zenith
  • Reducer adapters for drawtube allows use of smaller eyepieces and accessories
  • 2"-to-1.25" reducer adapter allows the use of the included eyepiece plus a wide array of other optional eyepieces and accessories
  • Universal smartphone adapter attaches over eyepiece for astrophotography
  • Unmagnified red-dot finderscope allows for fast subject acquisition and star-hopping techniques


Optical DesignRefractor
Focal Length1000mm
Focal Ratiof/9.8
Eyepiece Barrel Diameter2"
1.25", with included reducer adatper
Diagonal90° star
2" snout and eyepiece holder
TripodAdjustable-height, stainless steel
Mount TypeManual alt-az
Power SourceNone
Optical Tube DimensionsNot specified by manufacturer
WeightNot specified by manufacturer
Packaging Info
Package Weight36.2 lb
Box Dimensions (LxWxH)46.5 x 16.25 x 10.5"

In the Box

  • Explore Scientific FirstLight 102mm f/9.8 Alt-Az Refractor Telescope
  • 1.25" Reducer Adapter
  • 2" 90° Diagonal
  • 1.25" 25mm Eyepiece
  • Red-Dot Finder
  • Limited 1-Year Warranty, Extendable to Transferrable Lifetime Warranty with Registration

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