William Optics 20th Anniversary Golden Gran Turismo 81 Triplet- F/5.9

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William Optics 20th Anniversary Golden Gran Turismo 81 Triplet- F/5.9
Item # WO-A-F81GTVP20A
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  • Optical Design: Apochromatic Triplet Refractor
  • Aperture: 81mm / 3.2"
  • Focal Length: 478mm
  • Focal Ratio: F/5.9
  • Focuser: Dual Speed 2" Rack and Pinion


William Optics celebrates their 20th anniversary with this golden plated variant of their Gran Turismo 81 Apochromatic Refractor. Hailed by William Optics as the crown jewel of their Apochromatic Refractor telescopes, this 3.2" aperture scope makes use of tri-element objective design using high quality anti-dispersion FPL-53 glass to reduce any secondary spectrum by an outstanding degree, improving your visual contrast and clarity when using this scope visually or photographically! This scope also boasts of extremely sharp optics with top notch color correction, each and every optical element benefiting from full multi-coating with a special high transmission coating. The F/5.9 lens makes this an ideal scope for astro photography use when proper adapters are used to mount a camera and other equipment.

This scope uses a 2" rack and pinion focuser for smooth, integrated focusing. This 360 degree rotatable focuser uses a 10:1 ratio dual speed mechanism for the smoothest of focus shifts, and utterly avoids the issue of image shifting. It comes with two locking screws on angled positions for heavy-load applications, and the focus knob is a large aluminum piece of hardware with an inbuilt thermometer, providing comfortable and easy focus control at the knob level. That's not the only useful accessory to be included, either. A 2" to 1.25" adapter is also included with purchase of this telescope, enabling you to utilize a wider array of accessories than normal with the 2" focuser and scope. Anti-marring brass compression rings add to the overall value of this package, as does the carry handle with its V-shape night glowing illuminator, and the 2 year William Optics warranty policy.
Additional Information

Additional Information

Manufacturer William Optics
Telescope Series William Optics GT
Optical Design Refractor - Apochromatic
Mount Type None - Optical Tube Only
Warranty 2 Year Warranty
Telescope Aperture 81mm / 3.2"
Telescope Focal Length 478mm
Telescope Focal Ratio F/5.9
Optical Tube Outer Diameter 90mm
Length of Optical Tube 440mm - 484mm (Retractable Lens Shade)
Tube Color or Finish White with Gold Trim
Focuser Size 2"
Focuser Style Rack & Pinion
Manual or Electronic Focusing? Manual
Focusing Speeds Two-Speed
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