ZWO 110mm Quad APO Refractor corrector Most other 80mm or smaller

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

OD3(Optical Density)

When paired with control software such as ASIAIR (sold separately)

Software: iPolar Software

ZWO 110mm Quad APO Refractor corrector Most other 80mm or smallerLightweight, 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