Quote Originally Posted by Kayaker72 View Post
ummm...if the optics and AF are good enough, me.



Seriously, look at the MTF charts...

If these are accurate, they are better at 600 mm than the 50A.

AF will be a big question mark. And I won't believe anything until I see some test results. But, this could be an excellent optic at 600 mm for $2k. If so I could easily be the market.
Cool, buy a good tripod and head if you don't already have them Or invest in heavy weights to get ready! LOL

Dave