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OK which one is better
Model Omega MC 6" f/12 Optical System Maksutov-Cassegrain Aperture(mm) 150 mm Focal length(mm) 1800 mm F/D 12.0 Resolution(") 0.77" Limiting Magnitude 12.8 Concertrating Power 459X Optical Tube Weight 7KG Optical Tube Length 56cm OR
Optical Design :
Reflector
Aperture :
130 mm (5.12 in)
Focal Length :
650 mm (25.59 in)
Focal Ratio :
5
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