William Optics Gran Turismo 81 Mark IV - Red

William OpticsSKU: A-F81GTIV-RD

GT81 Options: Flattener Flat6AIII
Price:
Sale price$2,229.98 CAD
Stock:
On Backorder — ships when available
  • Description

The William Optics Gran Turismo Mark IV is Optically Unbeatable

  • Triplet air-spaced objective (FPL-53) in adjustable CNC machined ultra high precision lens cell
  • Extremely sharp
  • 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


Simply Beautiful Finish

  • Pure William Optics 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


Attention to Details

  • 2" & 1.25" adapter included
  • Anti-marring brass compression rings


R&P FOCUSER

2.5” R&P Ultra robust focuser with 1:10 dual speed: a treat to use during astrophotography. No image shifting! Heavy duty: perfect for your accessories.


SIMPLY BEAUTIFUL FINISH

Pure William Optics 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.


ATTENTION TO DETAILS

  • 2" & 1.25" adapter included in the price.
  • Anti-marring brass compression rings.
  • 90mm mounting rings are optional.
  • Though you will never need it, you have a 2-year warranty from WO and the certainty that we will be there to assist you even beyond that, if you need!


PACKAGE CONTENTS:

  • Mounting Rings
  • GT81 OTA
  • CNC Carry Handle Bar
  • Dovetail Plate
  • 2.5” R&P Focuser
  • Bahtinov Mask Cover
  • Soft Carry Case


Two-year, no fuss warranty and constant customer service!

You may also like

Recently viewed

Recent Blog Posts

View all
D-Size vs V-Size: A Complete Guide to Telescope Dovetail Systems

D-Size vs V-Size: A Complete Guide to Telescope Dovetail Systems

Stephen Mallia
What's the difference between D-size and V-size telescope dovetails? Here's everything you need to know.

Read More
What Is Back Focus in Astrophotography? Telescope Reducers, Flatteners, and Spacing Explained

What Is Back Focus in Astrophotography? Telescope Reducers, Flatteners, and Spacing Explained

Stephen Mallia
What Is Back Focus in Astrophotography? Telescope Reducers, Flatteners, and Spacing Explained Back focus is one of those astrophotography terms that c

Read More
Controlling Your WandererCover Flat Panel with ASIAIR

Controlling Your WandererCover Flat Panel with ASIAIR

Stephen Mallia
Wanderer Astro's latest firmware update lets ASIAIR Plus and StellaVita users control the WandererCover V4 series directly from their imaging setup —

Read More