It's compatible but a very expensive option for little gain I would have thought.
Just considering my options.
About to buy 70-200 2.8, and want something for extra reach after this. Intial thinking was the 300 f4 pf and 1.4, but Im now toying with the 150-600 C as I doubt it will be used as much as the shorter lens....
The 300mm PF with the 1.4 tc is a fantastic combination.
It really is lightweight, I'd highly recommend it
Its pretty much your pics that decided me Wez tbh....but the Sig is half the price......