Err 91

I am a new to the forum and hoping to get resolution to the sporatic Err 91 message on my Canon Rebel. Other discussions suggested cleaning the lens connections carefully with a regular old pink eraser. I have tried this a few times w/o complete resolution.

Please advise.

Thank You
Sara

Unfortunately ERR 91 is the general code for 'something is not right'. Some other error codes mean a specific problem like a focussing fault or something, but 91 just means 'something else for which there is not a specific code has happened'.

It is often a poor connection fron lens to camera and so the cleaning trick can work, but its not always that problem.

You may want to let it happen a few more times and try to see if it seems to be associated with anything in particular like just after you change a lens or when you try to prefocus or something or maybe it is always with a particular lens or memory card. At least that may give you more of a clue as to what is happening.

But its most likely to be a send back to Canon job anyway

I used to get an Error 99 with 1 lens of mine. As was said, it could be almost anything, but do you notice it happening any time in particular? For me it was the combination of that lens and pointing the camera straight up. I ended up phasing out that glass for other reasons and haven't had an issue since.