Determining focal length
Three different lenses
A lens has a certain bulge that ensures that the laser’s light bundle comes together nicely in a focal point. We have 3 lenses in our range, each with their own focal length. Because of this, each lens has its own optimal working area.
Because the different lenses have different focal lengths, they also all have their own lens position to ensure that you get the right distance between the lens and your material.
This is further explained in the video below.