William Optics Gran Turismo 81 IV APO Refractor

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$William Optics William Optics Gran Turismo 81 IV APO Refractor$ $William Optics William Optics Gran Turismo 81 IV APO Refractor$ $William Optics William Optics Gran Turismo 81 IV APO Refractor$ $William Optics William Optics Gran Turismo 81 IV APO Refractor$ $William Optics William Optics Gran Turismo 81 IV APO Refractor$ $William Optics William Optics Gran Turismo 81 IV APO Refractor$

$William Optics William Optics Gran Turismo 81 IV APO Refractor$

Article number:	A-F81GTIVRD
Availability:	More on the Way to us
Delivery time:	More on the Way to Us

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.

Technical Specification:

Lens Type - Triplet Apochromatic Prime Lens
Focal Length - 478 mm
Diameter - 81 mm
Focal Ratio - f/5.9
Image circle - 45 mm
Focuser - 2.5" R&P Focuser Compatible with EAF
Focus travel - 93 mm
Adapter Included - M63 Rotator 2" → 1.25" Visual Back
Optional Flattener - FLAT GT 1.0x FLAT 6AIII 0.8x
Camera Format - Full Frame APS-C M4/3
Tube Length - 390 mm - 460 mm
OTA Weight - 3.9 kg / 8.6 lbs

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