comes as no surprise, the viewing distance is also only about 10mm
if you screwed the front plastic lens out of its holder, enlargement is still about 5-fold
man comes to a viewing distance of about 40mm .... the numbers 1 and 7 remain but !!!
So what are magnifying glasses 2, if you can look at a point that's not?
and why should I change my worktable 6cm next to the clock I'm working on staring in 20x magnification ???
unfortunately lacks the cheap plastic lenses the inexpensive prism to the eye distance to compensate.
as monocular it's OK - binocular you get a headache !!!
