Borg 107FL F6 Astrograph Set FTF-M57 Focuser, 107mm Fluorite


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Aperture 107mm Fluorite
Focal length 650mm
F-ratio 6.0
Lens configuration 4 elements in 3 groups
Coating Fully multi-coated
Physical length 526mm
Tube diameter 80mm
Weight 2.9kg (OTA only)
Filter 82mm (front cap)
Parts included 2107, 7803, FTF-BORGII, FTF-M57(7901 version), 7352, 7108 & 2 x 7085
Notes The back end of FTF-M57 is 7901. A set includes a pair of mounting rings.