Beam expanders are telescopes. Yes it would. Here's a demonstration.Like what should be taken in account ?
I just bought a Jetlasers 10X Adjustable Beam Expander for PL-E Pro series with 1-10X magnification with adjustable focus to correct for laser beam divergence.
Doesn't 1-10X magnification you can change the beam expansion from as low as 1x to as high as 10x ?
I get the part where the beam is expanded and over all the power is reduced but after refocusing the beam back to a point at lets say 5000 feet doesn't that bring the power back up at least some in that point at 5000 feet ?