[davidmanze]

Interesting... it's even AF. But 500mm perhaps are too short. There are zoom products from Sony and Tamron that reach 500/600mm - I've read with interest the praises Michael Reichmann gave to the latter, with an a-mount and adapter. Sure, it's heavier, but it's also more flexible and of superior quality of a mirror. I think that a mirror makes sense only from 800mm.

 

http://luminous-landscape.com/sony-a7ii-...ntarctica/

Alright if you like soft doughnuts!