A shaky hand or other environmental factors such as wind, won't slow down your game with the ULT-S Pro Rangefinder OIS ("Optical Image Stabilization") technology,

Simply pull the faceplate out to turn the Slope Mode on for calculating distance where there are undulations (Orange = Slope ON). A closed faceplate is USGA Tournament Rule 14-3 Compliant. Plus target lock vibration, the device will vibrate and display the distance to the pin, locking onto flags instantly at up to 450 yards and hazards at up to 1000 yards.