"Spike" wrote in message
...

A 'tight beam' would indicate a spot not much larger than the laser
source. Unfortunately, the lack of *any* objective statement in the
above gives no indication that the beam was 'tight', merely that it
reached it's target.


I half suspect the lens is present to spread the beam- to make it large
enough to see a worthwhile "spot.

--
73
Brian
www.g8osn.org.uk