90D and 100mm USM IS EF f/2.8L lens not working

[melkir72]

My camera shipped with firmware 1.1.1 several years ago when I bought it (which I refreshed by downloading and running the update again today after having some issues with the lens).  Every other lens I have tried with my camera the past few years works fine, but this lens, which I just purchased today,  keeps giving me Err 01.  Firmware 1.1.1 was supposed to fix this issue for both this lens and the 85mm macro, according to technical bulletins here.  If I put the lens on my ancient 20D it functions fine, but I did not buy the lens to use it with that camera.  Am I out of luck or is there another fix for it that I am not aware of?

[kvbarkley]

If you bought the lens new, I suggest you contact canon. If you got New Old Stock, maybe the *lens* needs a firmware update.

[melkir72]

Not sure...bought as new from B&H yesterday and arrived today.  There's no date of manufacture that I can see on it.

[March411]

New or used you would probably be best served by contacting them immediately, if you haven't already to let them know of the issue.