William Optics All New Gran Turismo 81 IV APO Refractor with 2.5" R&P Focuser - A-F81GTIV

William OpticsSKU: A-F81GTIV-GD

Color: Gold
Sale price$2,117 CAD
Only 1 unit left


Remarkable Optics
The impressive optics within this William Optics Gran Turismo 81mm Refractor will blow your mind! With its triplet design and FPL-53 glass, images become crystal clear due to its exceptional color correction. Also, each lens is multi-coated with super-high transmission coating (STM), greatly improving contrast and enhancing detail! The spectacular sharpness seen through this William Optics Gran Turismo 81mm Refractor is sure to take your astrophotography to the next level!

The Perfect Focus
The focuser on the William Optics Gran Turismo 81mm refractor is a 2.5" Rack & Pinion focuser, allowing you to achieve the perfect focus on your favorite celestial objects. By having a large focus adjustment knob and a smaller more precise adjustment knob, finding focus on the stars is quick and effortless! The included Bahtinov mask cover and this Rack & Pinion focuser is a match made in heaven. Sharp stars made easy!

SKU Number
Model Number
Telescope Series
William Optics GT
Focal Ratio
Optical Design
Telescope Aperture
81mm (3.19")
Telescope Mount Type
No Mount - OTA Only
Type of Electronics
OTA Only - No Electronics
Number of Refractor Elements
3 (Triplet)
Focal Length (mm)
Image Circle
> Full Frame
Focuser Style
Rack & Pinion
Focuser Size
Telescope OTA Weight (lb.)
8.59 lb.
Refractor OTA Length - Extended (in.)
18.11" (460 mm)
Refractor OTA Length - Retracted (in.)
15.35" (390 mm)
William Optics - 2 Years

You may also like

Recently viewed