Borg adapter M68.8 to M57 7507

Borg M57 rotating ring DX 7352 can be threaded directly to M57 threads of the Borg telescopes and accessories. It allows you to manually rotate the connected accessory with a great smoothness and very low backlash.

Borg M57 metal cap 7357 threads directly to M57 threads of the Borg telescopes and accessories.

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.