Jun 7, 2024 #17 paul1598419 0 Joined Sep 20, 2013 Messages 18,779 Points 113 Turns out that my 593.5 nm laser is focusable. It has a place to put star caps that screws in and by turn that is does change the focus, but only slowly.
Turns out that my 593.5 nm laser is focusable. It has a place to put star caps that screws in and by turn that is does change the focus, but only slowly.