Posted: Fri Jul 14, 2017 4:35 pm
by dbhguru
Ents,

As a continued update on relevant topics, the latest compilation of measurement methods that make use of a reticle-based monocular (don't know what else to call it) is attached. It is pretty heavy duty, but each method, other than the simplest, has a calculator. The power of these methods is that you can measure the width of an object at a distance. The methods presented in the Excel attachment explain where each applies. There is one scenario left to develop. I won't go into it here.

Bob