Review on Longruner Day & Night Vision Camera For Raspberry Pi: 1080P HD Video With 5MP OV5647 Sensor - Perfect For RPi 4, 3B+, 2B, Zero W & More! by Scott Holland

I bought this camera for use with an OctoPrint on my 3D printer. I hadn't used it until recently when I got a longer ribbon cable. The photos have black spots showing up. I have confirmed that it's the camera and not the lens. I removed the lens to verify, and those black spots still show up. My return period has ended, so now I must either try to buy this again in a few weeks when I have the money; or hope the seller will allow me to still return it to them and replace it with a functional camera.