I own 5 Vipers now...
1..... 10 x 44
2..... 3 - 12 x 44
3..... 3 - 12 x 44
4..... 4 - 16 x 50
5..... 6 - 24 x 56

and I must say.....They are Great!!!!
I have never found them not to do what they were bought for..
the customer service I have received.... is second to none....


thanks
Al