Askar 111F - 111 mm f/6.9 Quadruplet Flat-Field APO Refractor - 111F - In Stock! 12X Binoculars especially at extreme temperatures (optional)

especially at extreme temperatures (optional)

the recording is kept in memory

Linear Field of View (@1000 m): 143 m (469 ft)

Used wedge in working condition

Real-time Periodic Error Correction (RPEC)

Askar 111F - 111 mm f/6.9 Quadruplet Flat-Field APO Refractor - 111F - In Stock! 12X Binoculars especially at extreme temperatures (optional)Askar 111 mm Quad ED APO Flat Field Refractor Askar 111F Flat Field Quad Refractor Highlights The Askar 111F has an aperture of 111 mm, a 766mm focal length, and a native focal ratio of 6. 9, suitable for various uses including astrophotography and daytime photography. The Askar 111F uses a quadruplet lens design (three elements in the front, one in the rear), which includes an ED glass element to effectively reduce chromatic aberration. The main tube