Engrave Photos with PWM Laser

edited May 8 in Tips & Tricks
Hi,
is there anyone experienced in engraving photos with PWM Laser?
just need some setups regarding grayscales as i´m not really satisfied with my results.

I use PLTB450 B 1.6W Blue Laser Diode with PWM capable driver controlled by 12 Bit PWM at 1KHz

Thanks

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