TEC 500 RC & TEC 500 RCC
Classical Ritchey-Chrétien system and RC system with corrected field
Der RC500 uses only mirror with reflective coatings(no field flattening lenses, the RCC 500 with field corrector)
Optical Design Ritchey-Chrétien system and RC system with corrected field Mirrors substrate Quartz oder zero expansion Sitall Primary cooling 4 Papst (Germany) low vibration fans Clear aperture 500 mm Focal length 4.500 Focal ratio f/9; f/8.9 (RCC) Image Scale 0.76 arcmin / mm Field diameter RCC - 52mm (36x36mm chip) Central obstraction RC - 35%, RCC - 42% OTA weight 120lb (55kg) OTA length 54" (1370 mm) Distance from rear cell to focal plane 300mm Focuser type and travel TEC large 4" focuser, 100mm
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