Getting your Nikons repaired would be your cheapest route to go. If you were able to stretch you budget another $100, You could consider the Vortex Viper binos (10x42) and they are definitely a step up to the next level of glass. My wife is getting into hunting and we have been looking through several binos at Cabelas, Sportsman's, etc. Both she and I noticed a substantial bump up in the Vortex Viper binos and yes, we also looked through the Diamondbacks. My wife likes the size, clarity and just plain feel of the Vipers. She said they even beat out my 25-year-old Swarovski 7x30's for clarity and smoothness of focusing, etc. And that's saying a lot.

You got me curious so I just looked up the Vortex Viper 10x42's on Amazon and they are on sale right now at $457.83. That is a very healthy discount as the normal retail price is $600. Dang it, I may have to make a last minute Amazon order now.