Hi Bob,
yep, they're the ones. Although they were on special at $249 when I bought them. If you scroll down to the bottom of the page to see mount HVT11, I got that at the same time. It's rock solid and essential I'd say.
But these items are excellent products.
I like binocular viewing so much that I went on to buy the Oberwerk BT100-45 (
http://www.oberwerk.com/products/100bt45.htm) as well.
All the best Bob,
Cheers,