ZWO 110mm Quad APO Refractor corrector The KAI-2001M CCD is used

The KAI-2001M CCD is used in all ST-2000XM cameras produced in 1993

Software: iPolar Software

OD3(Optical Density)

3mm Apparent Field of View 55° Eye Relief (mm) 20 mm  Optical Coatings Fully multi-coated Number of Lens Elements 6 Barrel Size (in) 1

Most other 80mm or smaller refractors with an outside diameter lens shield less than 125mm

ZWO 110mm Quad APO Refractor corrector The KAI-2001M CCD is usedLightweight, compact, and engineered for both immersive visual observing and high performance astrophotography. *Focus can be achieved within a back focus range of 4273 mm, measured from the M54M48 interface shoulder. MAIN FEATURES Flexible Connectivity for Multiple Configurations Uniqueness 1.) Four Element Optical Design The FF110 APO features a four element, fully air spaced apochromatic optical design. All four elements work together to deliver a