Extending reticle testing

General discussions of measurement techniques and the results of testing of techniques and equipment.

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dbhguru
Posts: 4534
Joined: Mon Mar 08, 2010 9:34 pm

Extending reticle testing

Post by dbhguru » Fri Jul 19, 2019 7:31 am

Ents,

I've been discussing the various formulas for measuring the width of a target with a monocular with range-finding reticle with Eric Wiseman, VA champion tree program coordinator, Cadre member, and an associate professor of urban forestry at VA Tech. The value of the reticle pretty clear, but just how accurate are the methods that employ it? There's no such thing as too much testing. Here's the latest test.
Reticle-Yardstick-b.jpg

The accuracy of the Trapezoidal method surprised me. The tests don't always come out this well, but they are always impressive. Setting up a longer distance test is next. Stay tuned.

Bob
Robert T. Leverett
Co-founder, Native Native Tree Society
Co-founder and President
Friends of Mohawk Trail State Forest
Co-founder, National Cadre

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dbhguru
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Joined: Mon Mar 08, 2010 9:34 pm

Re: Extending reticle testing

Post by dbhguru » Tue Jul 30, 2019 12:46 pm

Ents,

Below are the results of a reticle test conducting this morning. I was going that extra yard. Reticle measurements rule.

ReticleTest.png
Bob
Robert T. Leverett
Co-founder, Native Native Tree Society
Co-founder and President
Friends of Mohawk Trail State Forest
Co-founder, National Cadre

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Larry Tucei
Posts: 2017
Joined: Tue Mar 09, 2010 10:44 am

Re: Extending reticle testing

Post by Larry Tucei » Tue Jul 30, 2019 4:14 pm

Bob-

Impressive Mathematics as usual. Your precision and tenacity for measurement perfection is inspiring.

Larry

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