G
ran
T
urismo
71
User Manual
Aperture
71mm
Focal Ratio
F/5.9
Focal Length
420mm
Resolving
Power
1.62”
Limiting
Magnitude
11.1
Image Circle
GT71
Φ
40mm / GT71 with Flat 6
Φ
42mm
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
Main tube 82mm/Dew shield tube 92mm
Tube Length
(325 mm) Fully Retracted
(427 mm) Fully Extended
Tube Weight
2.2kg
Specification
