Pentax 10x42 Waterproof with the phase coating on the lenses. Side by side comparison with expensive high end binos had those guys asking each other why they spent 600 to 1000 dollars when the Pentax matched performance. This was in Colorado in 2001 on a combination elk and mule deer hunt. Since then I have convinced 3 or 4 hunting buddys to go with Pentax. I have been very happy.