Black image captured during fisheye lens calibration and camera alignment in lightburn version 1.7.06, 2025

Learning lightburn and lasering. I am running a Creality Falcon 2 Pro 22w on Windows 10. I have gone through quite a few fisheye lens calibrations and camera alignment attempts. The very first one after unboxing the machine and getting it up and running went flawlessly. All scores were near perfect, and captured images were accurate. After a little while (weeks) of lasering and researching, I found that for my fisheye lens, I did not angle my circle pattern card towards the camera as is instructed. I decided to run the camera lens calibration and camera alignment again. Unfortunately, the captured images either did not show up at all or if they did, they were completely black or extremely distorted in a spaghettification black hole event horizon kind of way. Screenshots below:

This seems to be an ongoing issue in previous versions, and is certainly an issue in the current version.

I will note that I am using the free trial and plan to buy at the end of that. Lightburn is an excellent software. I have tried all of the tricks in other topics, shutting down and restarting, unplugging, I even uninstalled and reinstalled lightburn.

This is a big issue for many people, and should not go ignored with future updates. Any information or help on this would be great. Thanks for any help in advance!

Ryan,
I also have a Falcon 2 22-watt laser. Which camera did you get? I have a Lightburn 120. If you have a Lightburn camera, you can skip the calibration steps.
How/where did you install the camera? I added a 5" wide strip of 1/4" plywood across the top of the smoke cover frame. I screw the board to the pole frame and I have the bottom poles screwed to a 2x4 frame which is screw into a 3/4" x30"x30" piece of plywood. I also have the laser frame locked in place with U shaped 3D printed attachments that are also screwed into the plywood base. The reason I mentioned this it that it is important that the camera is rigidly mounted so that the position and distance doesn’t change every time you open or move something.
Jim

Hi, thanks for the reply! The falcon 2 PRO 22w comes with an integrated camera in the enclosure that is a fisheye. It’s all very structural and rigid, no worries on it moving around during operation.

Bonjour,
J’ai le mème problème que vous. Pour me dépanner, je suis repassé sur la version 1.6.03.

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