Kinda hard to explain what your eye sees at dark.
The best way to learn this is to actually do it.
Get a 30mm tube scope and a 1” tube scope and go sit in a field with no artificial light and look through both scopes at dark.
I’ve done this several times over the years with most of the optics I own. Especially if I’m thinking of swapping some around at the end of the season. I’ll set up somewhere away from town and any traffic in a place I can see various “targets” from 50-maybe 250 yards. I put everything either on a bench or the ground on bipods and starting with the last 15minutes of light switch from rifle to rifle and record when I can no longer see adequately out of each. I usually do 3-4 at a time like that.
