Did i miss something? Where did the sliders go??? They have dissapeared from the camera control panel.
They are present on mine and they are not active when Auto Exposure and Auto Brightness are selected.
I feel brighter already! 
1 Like
Nopeā¦ updated lightburn and they are now GONE!
Please open Helpā¦ then About and capture the build date.
Maybe someone slippedā¦ Theyāre quite bright but sometimes they break stuff.
The sliders werenāt available to be until I selected a Camera.
This feature has been ālong sinceā gone. I have pointed this out before as well.
This applies (for me) to Mac OS and Ubuntu 20.04. with the official versions and with beta versions.
in picture 2 it is the macās built-in camera, but the function is also missing with LB original camera under Mac OS Big Sur
They are only available when using āCustom Camera Systemā in Edit->Settings on Windows machines.
That is what I feared and do not understand. The automatic exposure of (my) original LightBurn camera is oversensitive to light, it often gives me unnecessary problems seeing subjects on the machine bed and inaccurate results in target finding. If I could manually determine the exposure it would raise the quality experience of the camera a lot.
Iāve played with the settings in an external camera program under linux, set the exposure as needed and it worked great, however, the settings cannot be saved so LightBurn can incorporate them into its own camera profile.
Donāt get me wrong, I love the camera function and use it on a daily basis, it saves me a lot of material and gives me creative options that I donāt have without this camera. But once you know that itās possible that you can see things with the camera down to pencil lines but canāt get it into LightBurn, then it nags a bit.
ā¦no, unfortunately, have tried it before and just now again. It must be a Windows only thing, ie it doesnāt work under Mac OS or Linux
Under resolution it says in both OS āDefaultā / āHighestā
Thatās a good point. Oz wrote āCustomā for Windows to deal (in part) with the āHellscapeā
I had no issues connecting and using the camera with a MacBook Pro running Ventrua, and never noticed the sliders were gone.
ā¦not here either 
just without manual exposure optionā¦
Perhaps this thread can be used by you internally to look at the LightBurn cameraās firmware and re-establish the manual adjustment as an option in the future.
On the other hand, if autoexposure wasnāt so āoverloadedā already in relatively low light conditions, it might not be a problem at all.
WOWā¦ thank you all so much! However im still in a catch 22ā¦ the sliders do indeed come back when ācustom camera systemā is selected. However, the camera will NOT focus at all like that. Only when set to ādefalut capture systemā will images in lightburn be usable. The sliders need to be made available in BOTH.
What sort of camera do you have? Is it manual or auto-focus? Iād expect manual focus to work the same bay in both capture systems. And Iād expect auto-focus to be handled in hardware but not certain.
I had the 5mp 60degeee lightburn camera on my old china laser that i sold. It was the best thing ever! So with my new machine i figured i would upgrade to the 8mp 85degree lightburn camera. Yes manual focus. It would not focus even out of the machine in good light on my work desk. So tech support suggested trying updating everything which did nothingā¦AND changing setting from custom to default. On default the resolution more than doubled and was able to focus. On custom its litterally dog mess.
Iām not really following this. There really shouldnāt be any mechanism to focus other than the focus dial on the camera itself. The software is not involved.
Perhaps focus is not the actual issue but youāre somehow just getting a low resolution or blurry image?
2 things to check:
- Did you use the focus ring to get as sharp a picture as possible at fixed distance to top of material when the laser is focused? You can do this with any camera app running. It neednāt be LightBurn.
- When you do Lens Calibration, what is the reported resolution using Custom vs Default capture systems?
Idk why but inside lightburn the resolution is crap. With windows app its fine. Yea i focused it perfectly by twisting the lens on the camera using the windows app. So i know the camera is able to do the jobā¦ YET back in lightburn the resolution drops down. . . And even worse not being usable with ācustomā selected, which is why i use the ādefaultā selectionā¦BUT the catch 22 here is ādefaultā has no sliders uhhhhgggg
I can check tomorrow to see the reported resolutionsā¦
If you have focus dialed in then Iām guessing resolution or some other oddity. Your findings are making me curious if Iād get better image quality on default mode as well though.
On a separate note, are you connecting to a USB3 port? If not, can you try switching to one? Or just any other port? Itās possible youāre bandwidth limited on that port. Not convinced of this since it works with the default setting but worth a shot.
Unfortunately thatās not possible. The āDefaultā system is not one we wrote, and does not expose the exposure or brightness controls. The āCustomā one I wrote, and have access to all the camera features.
How long is the cable connecting the camera to the computer? Did you use an extension, or just the one that came with it?
Should it also be available for LightBurn camera under Mac and Linux?