FF131 APO Flat-Field Apochromatic Refractor/FF131 APO Bundle Choose to Buy:FF131 APO giving the wheel a cleaner

giving the wheel a cleaner and more cohesive look

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

The SC2210 sensor taken from the ASI220MM Mini camera features very high sensitivity

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

Note: The sensor tilt adapter need to be removed before you connect the camera to the 2” EFW

FF131 APO Flat-Field Apochromatic Refractor/FF131 APO Bundle Choose to Buy:FF131 APO giving the wheel a cleaner*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