Improving the scarring of the laser lens

[wilu9500]

Hello, I am expanding my machine. I have increased the machine's working area.

I would like to know your opinion because I have a 5.5 Watt blue laser with a wavelength of 405 nm. In the set there was such a lens that focused the laser. For M9 thread.

It seems to me that there are better lenses for lasers of this type. I would like to know if you have experience with improving the focus of a laser beam of this type.

[StuartB4]

You could always join or at least have a look at the forum here:
Laser Forum.
They have loads of help and experience.

[Focus3]

Good day,

G2 lenses seem to be top choice. Just search for a G2 lens with the right wavelength (405 nm should be in the range).

Focus3.