You will need one additional bit of information to help you and it’s an important bit. You will need to have the distance from your focused workspace bed to the mounting location of the camera. Then follow this post to calculate the correct options.
One of our members also posted this to help you check your math.
These cameras are 8 megapixel, with a capture resolution of 3840x2160 pixels, using large, distortion free lenses for excellent picture quality. These are the best choice for lasers with very large working areas, above 1000mm in size.
90mm x 15mm module size
In order to determine the minimum mounting height for the camera to see your whole laser area, use the wider of the two lengths of your laser’s work space and divide by: