June 14, 2018 Overcast, 6AM the sun is still behind the eastern hill (sunrise: 5:35). Vortex Fury10X42 HD LRF, Alpen Teton 10X50 EDHD, Nikon 7-15X35, Sig Kilo 2000, Bushnell Elite 1500 After adjusting each to the best I could, I placed the Vortex and Alpen on sandbags to check for the smallest lines I could see on the military optics chart 127 yards away. The Alpen could read 2-5, the Vortex could read 2-4, and putting the Nikon between 9X and 11X it could read 2-5. Fantastic for something costing about $125. I took them to the end of the drive and used the Vortex to read the farthest tree I could find. The Vortex read 1101 and the Sig read 1102 in about one second. The Bushnell could not read it. I dropped to the next tree down on the ridge and read 1095 a couple times. But, I had to hold the button down for a couple second to give it time to compute the distance. If I pushed the button like I did with the other two, I could only read out to about 600 yards max. So it works if one gives it time to work.