OMTech 18mm ZnSe Focus Lens, CVD ZnSe CO2 Laser Engraver Focal Lens with 2 Inch Focal Length, 2" FL Zinc Selenium Replacement Lens for 50W 60W 70W 80W Laser Engraving Machines, 99.5+ Transmittance

Purchased this to replace the lense in my OMTech 80w laser and it works great. After I was unable to clean some grime off me lens I found this one and I’m very happy with the results.

I have used OMTech lens and mirrors for years on my lasers and that is all I will use.

For what it's for, it does the job very well. Good quality!

Good replacement lens for my omtech 60w mf2028

I haven't used it yet, got as a backup

Works great - Drops right in and the laser cuts like new

Installed on my laser, did a ramp test and off I went. The quality is as if it were an original lense. Would definitely be buying more from this company.

I changed out the stock lens on my K40 laser after it got extremely dirty and chipped from over a year of use and immediately I saw a huge difference in the cut quality with this! Well worth the money if you need to replace the stock optics.