Borg 70mm carbon fiber extension for 115mm tube 8070 is threaded to the carbon tube of the 107FL f3.9 and 90FL f3.9 telescope and allows the visual use or the use of the 7108 field flattener or the 7215 telextender.
Borg 70mm carbon fiber extension for 115mm tube 8070 is threaded to the carbon tube of the 107FL f3.9 and 90FL f3.9 telescope and allows the visual use or the use of the 7108 field flattener or the 7215 telextender.
Borg fluorite apochromatic refractor 107FL f3.9 with ESATTO 3", 107mm diameter, 417mm focal length (f3.9), 6 elements fluorite apochromat with Canon lens, carbon fiber tube with 3 inches ESATTO focuser, M57 camera rotator, rear thread for camera connection, PLUS support rings. This wonderful apochromatic refractor with fluorite optics offers an incredible...
Borg fluorite apochromatic refractor 90FL f3.9 with ESATTO 3", 90mm diameter, 350mm focal length (f3.9), 6 elements fluorite apochromat, carbon fiber tube with 3 inches ESATTO focuser, rear thread for camera connection, PLUS support rings.