I have a query regarding the Sigma 150-500 mounting on a Nikon D5100.

I have got my Sigma 150-500mm today.... I am feeling that the lens is very tight to mount on my D5100. Is this expected?? I have other Nikon lenses like the 35mm f/1.8 which is mounting very smoothly, but the sigma 150-500 is so very tight that I need to put lot of force to mount it.

I initially thought the vendor may have sent me a different mount but cross-verified myself and with vendor and confirmed it is for Nikon. I am bit scared that it may hurt my cam mount or the lens mount itself if I mount multiple times. Is this normal?


1 Answer 1


No it should not be tight to the point you feel like you are forcing it. I had a 150-500 on my D90 and it mounted easily, same as all my other lenses. You might want to check for a loose screw or bent flange at the base of the lens. Do you see any scratch marks on the body where something may be rubbing/scraping against the mount?


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.