My PH and I were on our first stalk together and looking at a mixed bag of PG. Initially we had stopped the bakkie for beautiful and old blue wildebeest. As we were sneaking up, we both scanned the game animals that included tsessebe, blue wildebeest, kudu and oryx (maybe Impala as well, but I don't recall exactly). He was looking through his Vortex Diamondback 10x42's and I through Leica Geovid 10x42R (Gen 1 RF Binos). We both were drawn to the two kudu in the shade of a tree. He commented that the one on the left looked really good, my comment back was that the one on the right was bigger.
A little perspective. I was on my first trip to Africa EVER! He is an experienced PH with several years under his belt and has hunted this property for the last 10 years. I have pretty much just spit in his face by telling him he was wrong...and I recognized that the moment the words fell out of my mouth.
He pulled his binos down and gave a look. A look of "who in the F@#$% do you think you are telling ME what the hell is going on here when you haven't even been in Africa for 24 hours"? I handed him my Leica binos and he begrudgingly took them. He looked at the Kudu. He glanced at me, then again looked at the Kudu. Without removing the binos from his eyes he says..."You are right, the one on the right is bigger". He double checked his binos against mine and couldn't believe the difference in the lower light conditions of the shaded tree.
The quality of the equipment we take on safari makes a difference. In this instance it ended with my Leica binos not making the trip home. My wife and I now each have our own sets of Leica Geovid HD-B 3000's. They go on every stalk. Buy once, cry once.
Keep an eye on Euro Optic demo binos for deals on Swaro, Leica and Zeiss. Highly recommend the RF feature.