While connected by USB to a computer, my refurbished EOS R7, purchased from Canon 9 months ago, just stopped responding. I have replaced the battery, twice. Not much else to say. On the offhand chance this is something I can deal with, I am posti...
I am using this camera on a microscope, tethered to a computer. Lately, I have noticed an uneven dark bar along the bottom edge of the images. The darkest bar is at 1/4000s, the fastest shutter speed with this camera. Slower than 1/800 or 1/1000 ...