Orion Optics - OMC 140

Specification

• Aperture 140mm (5.5 inches)
• Focal length 2000mm
• Focal ratio f/14.28
• Tube material high gloss aluminium
• Main mirror fine annealed Pyrex (aspheric)
• Corrector fine annealed Schott BK7 (A-R coated both sides)
• Maksutov-Cassegrain optics guaranteed to one-eighth wave)
• Computer-optimised multi-ring baffle system
• Diffraction limited to almost 30mm diameter field
• Mirror focusing to give long focal range
• Tube assembly weight 3.5kg (8 lbs)
• EQ5 Mount and Tripod

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