Chuck Cuthbert
Have been using this as a forest measurement tool for over five years. I always measure trees from between 10-20m away, which is measured with an actual measuring tape first. Accounting for dbh which is taken at 1.3m from ground, and measuring timber height or tree height, this gives an accurate trigonometric measurement of the height required via the camera screen as viewfinder. However, you have to have some common sense to use it, which many reviewers here seen to lack.
David Klement
It does the simple math for you, you just need to hold you phone in the right height and angle
81 people found this review helpful