Hello everyone –  I got my first Laser,(ortur M2 - 7 watt)  about 10 days ago. I really am having a good time
time with it    So much fun that my 15 watt came in yesterday.  I finally got it focused in today.   My 7 watt focus range is around 7-7.5 mm.  All the different videos that I watched said about 7-7.5 mm.  It turns out that my 15 watt is only 4-4.5 mm. (measured from the bottom of the heat sink cooling fins down to my subject).  Is that normal when you start stepping up in power?
rcline