broken camera

Recently my best friend pulled out his grandfathers old camera which he had stashed in a box in his garage and asked me what I thought of it. It was an Agfa Ambi Silette in mint condition (aesthetically) in it's case with a filter container and light meter attached. Also there was the 90mm...

so it started messing up quite recently and I originally thought my sensor was dead but after some playing around I realized it doesn't mess up during videoing stuff. so I was wondering if anyone could enlighten me on what is happening. iv linked an image. (btw iv tried resetting and im also...

Help! I purchased a 2nd hand camera called YI M1 mirrorless camera and it was okay for some time but one time I forgot to put on the cover for the body when I took out the lens. After some time I noticed a very little white pixel on the upper right corner part of the picture. I noticed it when I...