Brand: , ,

All New Gran Turismo 71 APO refractor telescope

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

This product is currently out of stock and unavailable.

SKU: ASC1411 Categories: , ,
Guaranteed Safe Checkout

Introducing the all new William Optics Gran Turismo 71 APO refractor telescope OTA

The William Optics Gran Turismo 71 APO refractor telescope Optical Tube Assembly (OTA) is the new jewel of the apochromatic refractor world. The new Gran Turismo 71 APO features a 3-element objective using high-quality FPL-53 extra-low dispersion glass that reduces any secondary spectrum to an unbelievable degree. A larger version of this telescope can be found here

Features

  • 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.
  • Extra-smooth 360 deg. rotatable 2.5″ R&P focuser with 1:10 dual speed: a treat to use during astrophotography.
  • Comes with two locking screws on angled positions for heavy load applications.
  • Large aluminum knob with installed thermometer.
  • Stainless steel reinforcement inserts on both sides and on the back to allow heavy loading without problems.
  • Graduated scale for precise camera alignment.
  • quality fit and finish: powder-painted white CNC-machined aluminum tube, gold trim finish, retractable dewshield, dewshield cap.
  • Top quality anodizing.
  • Very compact OTA for carrying on flights.

Standard Package:

• Mounting Rings

• New 2019 CNC Carry Handlebar

• New Dovetail Plate

• 2.5” R&P Focuser

• Innovative Bahtinov Mask Cover (Patented)

• Soft Carry Case

Weight6 kg
Dimensions40 × 32 × 21 cm
Color

gold, red, blue

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

OTA only, no mount included
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″ 360° Rotating Camera-angle Adjuster, 1:10 fine focus 1.25″ Adapter
Type of mount: Includes mounting rings and Vixen style dovetail
Tube Diameter: 82mm (dew shield tube 92mm)
Tube Length: (325 mm) Fully Retracted; (427 mm) Fully Extended
Tube Weight: 2.2kg

Shopping Cart
Astronomical Solutions Company

Add address

Scroll to Top

Having difficulty making your purchase? Don’t worry! fill Out the form below, and a real, friendly human being (No bots, we promise!) will swoop in to save the day. 🦸‍♂️🦸‍♀️

Or alternatively send a WhatsApp message to +968 7151 4492 and We will get back to you during working hours!

 

Let's have a chat