Willam Optics GT81 with Internal Focus Design (WIFD) Apochromatic Series
| Article number: | T-GT-81RD-WIFD |
| Availability: | In stock |
| Delivery time: | In Stock! |
Unveil the mysteries of the night sky with the William Optics Gran Turismo 81 WIFD, a superb refractor telescope designed for discerning astronomers who demand high-quality optics and robust build quality. This exquisite telescope is part of our renowned Gran Turismo series, known for combining exceptional performance with stunning aesthetics.
Outstanding Features:
- Superior Optical Quality: The GT 81 WIFD features a triplet apochromatic lens with extra-low dispersion (FPL-53) glass from Ohara, Japan, ensuring outstanding clarity and sharpness with virtually no chromatic aberration.
- Enhanced Durability and Precision: Engineered with a precision-machined, ultra-durable housing, this telescope is designed to withstand the rigors of frequent use while maintaining optimal alignment of its optical elements.
- Advanced Focusing System: Equipped with our proprietary WIFD (William Optics Internal Focusing Design), this model offers a seamlessly smooth focusing experience, perfect for both astrophotography and serious star-gazing.
- Aesthetically Pleasing Design: The Gran Turismo 81 not only performs beautifully but looks the part too, featuring a sleek, retractable dew shield and a glossy white finish with gold trim that embodies elegance and sophistication.
Technical Specifications:
- Lens Type - Triplet Apochromatic Prime Lens
- Focal Length - 478 mm
- Diameter - 81 mm
- Focal Ratio - f/5.9
- Image circle - 45 mm
- Focuser - WIFD R&P Focuser Compatible with EAF
- Focus travel - 0-75 mm (Ruler to 90mm)
- Adapter Included - M92 Rotator M92 → M63 Adapter
- Optional Flattener - FLAT GT 1.0x (requires adapter) FLAT68III 1.0X (requires adapter) FLAT6AIII 0.8x
- Camera Format - Full Frame APS-C M4/3
- Tube Length - 420 mm - 500 mm
- OTA Weight - 3.58 kg / 7.89 lbs
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- Total Weight - 4.56 kg / 10.05 lbs
