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Specifications
Configuration
--------------------------- Fluorite Ortho Apochromat Doublet
Effective Aperture
--------------------- 60mm all surfaces hard-multi-coated
Effective Focal Length
--------------- 530mm
Effective Focal Ratio
----------------- 1:8.8
Resolving Power
---------------------- 1.93”
Limiting Magnitude ------------------- 10.7
Light Gathering Power --------------- 73X
With Flattener 0.93×
Effective Focal Length
------------- 495mm
Effective Focal Ratio
---------------- 1:8.2
Image Circle --------------------------
φ
44mm
With Extender 1.7XR
Effective Focal Length
------------- 900mm
Effective Focal Ratio
---------------- 1:15.0
Image Circle --------------------------
φ
44mm (100% illuminated)
φ
88mm (reference)
Diameter of Main Tube -------------- 68mm
Total Length of Tube Assembly ---- 570mm
Weight of Main Tube Assembly ---- 1.8kg (about 3.6lbs)
Finder Scope --------------------------- 6x30 (optional)
Accessories ---------------------------- Warranty card, Instruction Manual,
Hex wrench (4mm)
