ZWO FF131 - 131mm f/7.5 Flat Field APO Refractor - FF131-APO Wanderer Rotators Die-cast aluminum body

Die-cast aluminum body

When the gain is 182

Manufacturer: iOptron Product SKU: G281B3 Function: GEM - German Equatorial Mount Weight: 10 lb (4

compact optics — especially single-eye devices — were limited by hand movement

ZWO FF131 - 131mm f/7.5 Flat Field APO Refractor - FF131-APO Wanderer Rotators Die-cast aluminum bodyZWO FF131 APO Flat Field Apochromatic Refractor Main Features Flexible Connectivity for Multiple Configurations 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 element is incorporated to effectively reduce chromatic aberration, resulting