- Burris Optics is proud to introduce the new and improved Oracle 2 Rangefinding Bow Sight. The Oracle 2’s design is based on all the customer feedback we got from the original Oracle and includes: Improved Auto-Brightness Detection, Improved Manual Brightness Control (lower levels), Improved Set-Up (micro-adjustments on LRF), better waterproofing and more accurate arrow drop calculations. No more guessing distance, fumbling with rangefinders, dialing sights or aiming between pins. Most importantly no more watching the trophy of a lifetime walk away because you didn’t have time to range him and shoot or worse yet, tried to range him and spooked him from the movement!