William Optics GT71 71mm f/5.9 Apo Refractor (Red) with Soft Case & Flat6AIII Field Flattener Astrophotography Package

New for 2023 - William Optics now includes a free M-CAA63 rotator with this telescope (a $109 value)!

Gran Turismo 71 APO Refractor Telescope

The stunning new William Optics Gran Turismo 71 Apo is the new jewel of the apochromatic refractor world. The new GT71 features a 3-element objective using high-quality FPL-53 extra-low dispersion glass that reduces any secondary spectrum to an unbelievable degree.

Optically Unbeatable

• Triplet air-spaced objective (FPL-53) in adjustable CNC machined ultra high precision lens cell.
• Extremely sharp with excellent color correction.
• Each lens is Fully Multi-Coated with a special super-high transmission coating (STM Coating) on all surfaces
• This f/5.9 lens is ideal for astrophotography.

2.5" R&P Focuser

• Extra-smooth 2.5" R&P focuser with 1:10 dual speed: a treat to use during astrophotography. No image shifting!
• Comes with two locking screws on angled positions for heavy load applications.
• Large aluminum knob with installed thermometer.

Patented Design

• Stainless steel reinforcement inserts on both sides and on the back to allow heavy loading without problems.
• Graduated scale for precise camera alignment.

Simply Beautiful Finish

• Quality fit and finish: powder-painted white CNC-machined aluminum tube, red trim finish, retractable dewshield, dewshield cap.
• Top quality anodizing.
• Very compact for carrying on flights.

Astrophotography Package：

• CNC Carry Handle/Saddle Bar with integrated VIxen-style slot for compatible guidescopes or finder brackets
• New Dual-Sided Dovetail Rail
• 2.5” R&P Focuser
• Innovative Bahtinov Mask Cover (Patented)
• Soft Carry Case
• Flat6AIII flattener
• Two-year, no fuss warranty and constant customer service!

Adjustable Flat6AIII (T-mount not included)

This very elegant 2" reducer/field flattener has been designed to optimize the flat-field imaging performance of William Optics F/6 to F7.5 ratio refactors. WO Flat 6AIII will provide good illumination and flat field across 97% of full frame sized sensors.

Full frame size

• Designed with nearly Full frame chip-size DSLR cameras in mind.
• FMC triplet APO design.
• Produced entirely with the best Ohara optical glasses.

Amazing

• Reducing factor 0.8X.
• Adjustable design, for perfect back focus it can be used with other models of refractor
• 48mm filter ready

Superb Finish

• William Optics polished anodized finish.
• All internal surfaces threaded and blackened to prevent reflections.

Easy to Use

• Will accept any standard 48mm wide T-ring for your camera. Not compatible with smaller 42mm T rings.

Adjustment Distance

• GT71: 7.1mm

Optional Accessories：

• M63 -2” Rotolock 
• 1.25” Rotolock
• All New Slide-base 50mm Guiding Rings
• Slide-base UniGuide 32mm or 50mm Scope