Received My order but lacking some instruction

CO2 Laser Cutting & Engraving CO2 Lens
1

I received my compound lens for engraving. Along with it I received the auto-focus K-series lens holder.
Can I insert this compound lens into it and if so, focus length from the tip would be what?

Thanks in advance.

2

Hello,norm258.Compound lenses are generally suitable for C series and E series, but it cannot be used for K series.