Canon Community

I use my 90D a lot, and I only have one set of authentic Canon batteries.... today after a fresh charge, I inserted them into the camera and got an error and was asked if they were canon, to which I said yes.  It said they might be counterfeit and th...

I was wondering if there were any known issues between the Canon 90D and the Canon EF 70-300mm f/4-5.6L IS USM Lens.  I've worked on obtaining sharp focus for about 6000 pictures and cannot accomplish it.  Switch to the new 18-135 Nano and they are t...