William Optics Gran Turismo 71 APO Refractor

ITEM #
WO-A-F71GTII
  • Telescope tube weight: 4.9 lbs
  • Focal length: 420 mm
  • Focal ratio: f/5.9
  • Aperture: 71 mm
  • Sale
  • Regular price $848.00

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William Optics Gran Turismo 71 APO Refractor

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. 

William Optics GT71 Refractor Side View

2" V-power Focuser

  • Extra-smooth new 2" Crayford focuser with 1:10 dual speed: a treat to use during astrophotography. No image shifting (up to 15Lb.)!
  • Comes with two locking screws on angled positions for heavy load applications.
  • Stainless steel reinforcement inserts on both sides and on the back to allow heavy loading without problems.
  • Graduated scale for precise camera alignment.
  • Innovative Bahtinov Mask Cover (Patented) included

William Optics GT71 Refractor Focuser Close Up View

Simply Beautiful Finish

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

William Optics GT71 Refractor Top Side View

 

Standard Package

  • William Optics Gran Turismo 71 Refractor
  • Soft Carry Case
  • Patented Bahtinov Mask Cover
  • CNC Carry Handle Bar
  • Mounting Rings
  • 2.5" R&P Focuser
  • Vixen Style Dovetail Plate
  • 2 Year Warranty 

Imaging Package

  • Everything listed above
  • Flat6A-71 .08x Reducer-Flattener
  • Soft Carrying Case

SPECIFICATIONS

Aperture71 mm (2.75")
Focal Length420 mm
Focal Ratiof/5.9
Free ShippingYes
Glass TypeFLP53
image circle42mm
Limiting Magnitude11.1
ManufacturerWilliam Optics
Optical DesignTriplet
Optical TypeTriplet
Tube Length325mm
Tube Weight2.8kg (6.1 lbs)