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When it comes to low light conditions your second generation night vision scopes are first-rate. They amplify light by 20,000 to 30,000 times. This means that you can see a man at 675 yards with a full moon, (which could be embarrassing to both of you), 330 yards in starlight and 100 yards on a dark overcast night.
The sparkling image you see can be a little eerie on a dark and starry night, but there is virtually no geometric distortion and the focus is spot on 100% across the eyepiece.