WHAT DETERMINES MAGNIFICATION LEVELS
To calculate magnification levels, you need to know:
Size of the monitor you are using
Minimum and maximum field of view (in X direction) on that monitor
The monitor is important because the size of the monitor will determine how far you can zoom in and out. That is, you can reach lower AND higher magnification on a 27” monitor than a 24” monitor.
A TAGARNO FHD Prestige with a +10 lens (achromatic) can magnify an object 129 times on a 24” monitor. But it can magnify 145 times on 27” monitor and 116 times on a 22” monitor.
To understand why that is, let’s look at the math.