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William Optics GT71 ED APO Triplet Refractor Telescope

William Optics GT71 ED APO Triplet Refractor Telescope
 William Optics GT71 ED APO Triplet Refractor TelescopeWilliam Optics GT71 ED APO Triplet Refractor Telescope 
Price:  £879.00
List Price:  £929.00
(Inc. 20% VAT)
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Product Code:  A-F71GT
Manufacturer:  William Optics
Telescope Type:  APO Triplet Refractor
Aperture (mm):  71 mm

William Optics

Soft carry bag included!

From the pristine white finish on the CNC tube to the elegant gold trim, this telescope has more than just good looks.

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, gold trim finish, retractable dewshield, dewshield cap.
  • Top quality anodizing.
  • Very compact for carrying on flights.

Aperture: 71mm
Focal Ratio: F/5.9
Focal Length: 420mm
Resolving Power: 1.62
Limiting Magnitude: 11.1
Objective Type: 3 elements Air-spaced with FPL53 glass
Lens Shade: Retractable
R&P Focuser: 2.5", 1:10 fine focus, 1.25" Adapter
Field Stops: Baffles
Type of Mount: Includes mounting rings and Vixen style dovetail
Tube Diameter: 82mm (Dew shield: 92mm)
Tube Length: 325mm fully retracted, 427mm fully extended
Tube Weight: 2.2kg

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