I bought this Vivitar lens cheap and I'm having trouble identifying the mount. I believe it's a Version 4 Serial number is 22128668

Vivitar mount

  • \$\begingroup\$ do you have its diameter? \$\endgroup\$
    – phuclv
    Commented Jul 16, 2018 at 3:37

1 Answer 1


It is likely a Canon FL mount. If you are looking for an adapter, it is compatible with the Canon FD mount using stop-down metering. See Evolution of the Canon FD Mount.

If you'd like, you can measure the mount diameter to compare with a list of lens mounts (alphabetical, by-register, Wikipedia).

FL and FD mounts

  • \$\begingroup\$ There's no may be to it, the lens is an FL mount lens. \$\endgroup\$
    – Michael C
    Commented Jul 16, 2018 at 12:47

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.