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URL: http://www.thaiexcite.com/William-Optics-Gran-Turismo-81-IV-f-5.9-OTA-Red.html

Explore the Skies with the William Optics Gran Turismo 81
Discover precision astrophotography with the compact and powerful Gran Turismo 81 IV f/5.9 APO Triplet Refractor. Equipped with a high-quality FPL-53 triplet lens for exceptional clarity and color correction, this telescope is perfect for capturing detailed celestial images. Its robust 2.5” R&P focuser ensures precise adjustments without image shift, while the elegant design features a retractable dew shield and a durable white powder-coated finish with gold trim. Ideal for travel, the GT81 comes with a soft carry case and all essential adapters, making it a top choice for astronomers on the go.
What's in the box

Specifications
| Aperture | 81mm |
| Focal Ratio | F/5.9 |
| Focal Length | 478mm |
| Resolving Power | 1.43" |
| Limiting Magnitude | 12.2 |
| Objective Type | Three element with FPL-53 Air Spaced, Fully Multi-Coated,STM coatings |
| Lens Shade | Retractable |
| 2.5" Rack and Pinion Focuser | 1:10 fine focus 1.25" Adapter |
| Field Stops | Knife-Edge Baffles |
| L-type Mount | Bracket |
| Tube Diameter | 90mm |
| Tube Length | (390 mm) Fully Retracted |
| Tube Weight | 3.95kg |