The focus and diopter are mechanical and the base 3x magnification is in the lenses, but the zoom is digital. All the info in the picture can be viewed in the scope or turned off as you choose. As for rugged, it is definitely hefty and appears very rugged construction, but I haven't banged it around in my truck yet.
Last edited by hugger-4641; 02-18-2018 at 01:20 PM.
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