New to Laser cutting

You identify you have a 12"x20" size bed but you also need to know where you are going to mount this camera and calculate the distance it will be from the bed when in focus.
We have a tool to help you with this.

In LightBurn go to, ‘Help’→’Camera Selection Help’ and enter your machine bed size to see the different mounting height options:

And for a bit more on the subject: