FF131 APO Flat-Field Apochromatic Refractor/FF131 APO Bundle Choose to Buy:FF131 APO Wide:1/2" Resolution Tele: 2160 x

Wide:1/2" Resolution Tele: 2160 x 3840 (8

giving the wheel a cleaner and more cohesive look

The ZWO Electronic Filter Wheel (EFW) is available in four models

and the ZWO SDK for flexible control across platforms

uniform frames during long integrations

FF131 APO Flat-Field Apochromatic Refractor/FF131 APO Bundle Choose to Buy:FF131 APO Wide:1/2" Resolution Tele: 2160 x*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 FF131 APO features a four element, fully air spaced apochromatic optical design. All four elements work together to deliver a flat imaging field without the need for an additional field flattener. One ED (extra low dispersion) glass