Just received and have been playing with the 90-degree 5MP Lighburn camera on a 700x500 “red and black” Chinese machine. I had been considering various other USB cameras, but decided to go with the officially support LB camera for support. The camera is mounted ~720mm from the bed, roughly centered on the hood and adjusted to point straight down.
I am, however, running into significant problems with exposure; when the camera is somewhat happy with the exposure, the human eye has trouble. Which it’s bright enough for the human eye, the exposure is totally blown out.
I have tried different levels of lighting (I’m in a windowless garage with just ceiling lights), and simply can’t get a reasonable compromise. I’ve tried with a total of 120W LED through the garage opener diffuser up to 200W (plus the garage door) LED ceiling fixures and with/without an LED utility light on the hood of the machine. Note that I have a very tall garage ceiling, about 12’
I can get generally reasonable exposure when doing the lens correction, not-quite-as-good doing the alignment, and then using the camera overlay it becomes unusable with the white surface obliterating black ink/marker as a test.
There seems to be an exceptionally narrow window of contrast and brightness controls and the amount of ambient light to make the camera happy, “happy” changes when I get to using the actual overlay usage. The images are washed out and out of focus (although zoomed much further in).
Do I have a flaky camera, or is this expected behavior?