Focus your G7 & G8 lens better.
(now made of aluminum (Extension only included)
GET AN ULTIMATE BEAM QUALITY!
Endurance made a few tests with a laser lens extension spacer and without it.
Necessary for G7 / G8 lens
G7 without an extension spacer
Focal range 64.5 mm (2.5″)
Focal beam spot 0.321 х 0.058 mm (quite big)
G7 with an extension spacer
Focal range 19 mm (3/4″)
Focal beam spot 0.094 х 0.041 mm
G8 without an extension spacer
Focal range 84.1 mm (3.3″)
Focal beam spot 0.442 х 0.052 mm (quite big)
G8 with an extension spacer
Focal range 19.7 mm (3/4″)
Focal beam spot 0.104 х 0.075 mm
