Gran Turismo 71 APO Refractor

Gran Turismo 71 Manual
Gran Turismo 71
10 Pages (2.12 MB)
In stock
SKU
A-F71GT
$798.00
Gran Turismo 71 Manual
Gran Turismo 71
10 Pages (2.12 MB)

2.5" R&P Focuser
• Extra-smooth 360 deg. rotatable 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.

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.

Specification
Specification

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

Field Stops

Baffles

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

 

 

 

Specification for Apochromatic Lenses

All WO refractors objective are double tested and inspected before shipping to our customer, these telescopes are free of coma and astigmatism.

 

Optical Performance
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