Thursday, July 7, 2011

My Zhumell 12" dob specifications

Apperture - 305 mm (12 inch)
Focal Length - 1500mm
Focal Ratio - f/4.93
Star Diagonal - 1.25 Inches (32 mm)



Finderscope - 8x50
GoTo - No

Weight Complete - 75 lbs (34 kg)
Total height - 63 inches (160 cm)
OTA length - 60 inches (152.5 cm)
Base height - 27 inches (68.5 cm)
Base diameter - 25.5 inches (65 cm)


Aperture Gain - 1900
Visual magnitude limit - 14.2
Max FOV - 1.9 deg
Resolution - 0.38 - 0.68 sec
Maximal Magnification - 300
Optimal Magnification - 150
Minimal Magnification - 42
Absolute Maximum Magnbification - 750


See the great Telescope Equations site for the underlying theory and formulas.

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