The William Optics GT71 Triplet Air-Spaced APOL Telescope in Gold with 0.8x Reducer
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.
Slidebase Handle• Top quality anodizing.• Very compact for carrying on flights.
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.