Mount | Specification | Flange Focal Distance |
---|---|---|
10mm | M 10 x 0.5 thread | No standard |
12mm or S-mount | M 12 x 0.5 thread | No standard |
CS-mount | 1 x 32 thread | 12.52mm |
C-mount | 1 x 32 thread | 0.69 inches (17.52mm) |
Leica mount (L) or M39 | 39mm x 26 threads/inch 60 deg | Originally 26.6mm but varies |
25mm mount | M 25 x 0.5mm | No standard |
M42 mount | M 42 x 1mm | 45.46mm |
T mount | M 42 x 0.75mm | 55.0mm |
Canon (R, FL, FD) | Bayonet, 48.0mm | 42.0mm |
Pentax (K) | Bayonet, 48.5mm | 45.5mm |
Nikon (F) | Bayonet, 47.0mm | 46.5mm |
Olympus (OM) | Bayonet, 47.4mm | 46.0mm |