Ordered these 12x50mm Diamondback binos in place of Vortex Crossfire HD 10x50mm as they are an upgrade in quality. Glad I did as I can still hand hold them and more suitable for my viewing preferences. Only used a few times so far but pleased with the image quality so far.. Feel well constructed although I will rarely use the Glasspak harness and case if ever. I have case and shoulder strap that suits me better. Good buy.

Was looking for a pair of binoculars to user for both wildlife spotting and for 'quick' astro when I'm too lazy to set up the telescope. I picked these partly because they were so much lighter than the more normal Porro prism designs. So far, of course, the night skies have been mostly cloudy, so night viewing has been restricted to looking at the moon. Keeping them steady takes a bit of practice but the image is extremely clear and bright. I wear glasses, and there's no problem using them with the eyecups in the 'down' position. However, if I remove my glasses, rotate the eye cups outwards, then there's enough focusing 'spare' to correct for my ~ -3 eyesight, which is great - it's definitely easier to get a stable view with the binoculars 'locked' tight against my face. Build quality seems really good, and the rubberised exterior is comfortable to hold. The lens covers are fixed to the body and are a good snug fit. The eyepiece caps are slightly less solid but stay in place. The case is reasonable robust, and a snug fit. I'm not sure I'll ever use the harness that comes with it though (aimed more at hunters, I suspect). All in all, I'm pleased with my purchase and looking forward to some clear nights.