I've used the Fury HD 5000 10x42 for three years and on the strength of those bought a pair of Diamondback 10x42s for my wife this year. The Fury's image is crisper and I can see into woods and foliage a lot better with them, first and last light a bit better too, which is all to be expected. Having said that the Diamondbacks are impressive, my wife uses them for general purpose bird and nature watching and is delighted with them. Optically and mechanically they are excellent value for money. The rubberised coating, lens covers and straps are not up to the same standard as the Furys, the glasspack is the same.