Originally Posted by troutfisher13111
Then, what's the difference between the two?


Originally Posted by Mule Deer
STS45,

The VX-2's have the same glass as the VX-III's.


Notice the "2" and the "III"...that is the difference. The current product lines use standard numerals versus Roman numerals.

The current VX-2 is the same, optically, to the previously designated VX-III.