All gen 1 will be simialr in light amplification, since all gen 1 tubes are
made in the same factory in Russia The only factor that will add or detract
from light amplification is lens size (last number). At 42mm the Bushnell 25 x 42 Night Vision Scope
will be good in this respect, though Bushnell does not list an actual number
for light amplification. A good article which explains the basics is fouind
on ATNs website _________________ Thanks for posting with us
Joanie K - Your personal optics expert