topic Re: Issue with EOS 90D in EOS DSLR & Mirrorless Cameras

EOS 90D won't focus or switch off unless I pull the battery

Db59Kjb63 — Tue, 28 Jan 2025 14:26:39 GMT

Hello

I have a Canon 90D camera and it has been fine since i bought it a few years ago.

Now for some reason after taking a few shots , it will not focus and will not switch off , i have to take the battery out to switch it off .

When i put the battery back in it is fine for a few more shots then the same thing happens again ,i have tried this with a fully charged geuine canon battery and an empty SD card .

Any help would be appreciated

Thank You

Re: Issue with EOS 90D

deebatman316 — Sun, 26 Jan 2025 14:28:10 GMT

What lens are you using Canon or 3rd Party.

Re: Issue with EOS 90D

Db59Kjb63 — Sun, 26 Jan 2025 16:38:26 GMT

Hello thank you for your reply but i do not think it has any relevence to my problem , but thank you any way.

Re: Issue with EOS 90D

deebatman316 — Sun, 26 Jan 2025 17:00:41 GMT

I have seen bad lenses do this to cameras. Such as draining the battery preventing the camera from turning on.

Re: Issue with EOS 90D

Db59Kjb63 — Sun, 26 Jan 2025 17:07:35 GMT

Thanks for your reply iam using a brand new 100-400mm USM II lens

Re: Issue with EOS 90D

deebatman316 — Sun, 26 Jan 2025 17:22:37 GMT

What happens if you use a different lens does the camera still give you problems.

Re: Issue with EOS 90D

Db59Kjb63 — Sun, 26 Jan 2025 17:35:45 GMT

Thanks for the thought i will try it next week with a different lens and will get back to you ,

Never thought about it being the lens , but i will give it a try.

Many Thanks for your imput.

Re: Issue with EOS 90D

deebatman316 — Sun, 26 Jan 2025 17:39:50 GMT

Just because something is new doesn’t mean that it’s functioning correctly. Did your problems start when you got this new lens. Was the lens purchased new or was it purchased used but new to you.