William Optics
William Optics Gran-Turismo 71 II
William Optics Gran-Turismo 71 II
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Elevate your astrophotography with the William Optics Gran Turismo 71, a compact yet powerful triplet APO refractor. Featuring advanced FPL-53 glass for exceptional color correction and clarity, this telescope delivers superb image quality. The precision-engineered f/5.9 focal ratio is ideal for capturing detailed celestial images.
Designed for ease and durability, the GT71 features a robust 2.5" dual-speed focuser and a sleek CNC-machined aluminum body with a retractable dew shield. Perfect for both seasoned astronomers and enthusiastic beginners, this telescope combines top-notch functionality with stunning aesthetics.
Experience unmatched optical performance with the GT71—your portal to the cosmos.
- Lens Type
- Triplet APO Prime Lens
- Focal Length
- 419 mm
- Diameter
- 71 mm
- Focal Ratio
- f/5.9
- Image Circle
- 44 mm
- Focuser
- 2.5" R&P Focuser Compatible with EAF
- Focuser Travel
- 93 mm
- Adapter Included
- M63 → 2" Visual Back 2" → 1.25" Visual Back
- Optional Flattener
- FLAT GT 1.0x FLAT 6AIII 0.8x
- Camera Format
- Full Frame APS-C M4/3
- Dovetail Type
- Vixen ↔︎ Arca-Swiss
- Tube Length
- 392 mm - 470 mm
- OTA Weight
- 2.95 kg / 6.5 lbs
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Find the product you want.
Talk to Us
Get expert guidance fast.
We Source It
Delivered within 4 weeks.
Enjoy It
Be happy with your gear.
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what we get asked most often
Are the prices all-inclusive?
Yes. The price you see is the price you'll pay. All taxes are included. Free shipping on all orders.
What's the stock status of the products on your site?
We list only in-stock items on our website that can be shipped right away. Sold out products are out of stock, so you can't place an order.
Selected products are available for Preorder, with a guaranteed delivery within 30 days or your money back.
How fast do you ship?
We process and ship all orders within two business days. Shipping time is determined by the speed of the shipping partner.
Is there a guarantee on your products?
Yes. On top of the manufacturer's warranty, we also offer a Replacement Guarantee on all online orders. In the event that the product is defective or damaged during shipping, you will receive a replacement.
Can I cancel my order?
We'll refund you 90% if you cancel before dispatch. Cancellations after dispatch are complicated. Take a look at the our Policy here
What's your return policy?
We have strict return/refund policies as a company that deals with fragile products. Casual returns are not permitted. Items that are not damaged in transit or defective cannot be returned.So please take a moment to review our Refund Policy.
Could I order something that's out of stock or not listed?
If you are interested in ordering an out-of-stock item, click the "notify me" button. You will be notified when the item is back in stock.
To source a specific product for you, our team needs more information. Specific orders will be subject to case-by-case terms and conditions.
