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Warning! When buying these Vortex Diamondback binoculars what your receive might not be what is pictured, or what you expect. Vortex recently "Upgraded" the Diamondback line and IMO the updated versions are simply inferior to their old models. The new version does not have "Vortex" written on the actual binocular, just "Diamondback" and Vortex is mentioned just once in the manual (As part of the mailing address). I actually thought I had been ripped off by purchasing a pair of knockoffs, so I called Vortex customer service. They informed me that they had indeed changed the model and that "Vortex" was no longer written on the binoculars. The problem is that they updated more than that, and IMO it was not an upgrade.
I have had a pair of 10x42 Diamondbacks for about 5 years now, and my father was always commenting on how much he liked them. So for Christmas this year I purchased him a brand new pair of Vortex Diamondback 10x42, just like the ones i have been using. When they arrived I immediately noticed they were markedly different than my 5 years old 10x42's. The eye cups are harder rubber and less comfortable and they don't open as wide (and for those of use with large heads that's a problem). Other differences were the lack of any Vortex branding and a slightly narrower center hinge. In a side by side comparison between my 5 year old 10x42's and the new ones I purchased the old ones are considerably better!
These Vortex Diamondbacks used to be great pair of affordable binoculars, and IMO the new ones are simply mediocre. The real problem is many retailers are still using the same pictures, same display models and apparently the model numbers are the same. Unless/until Vortex returns to their old design I would highly recommend searching for a used or new old stock pre 2016 pair of these. They have the wide center hinge and "Vortex" written on the actual binocular (And don't trust the pictures, contact the seller to double check).