B
Becksvart
Guest
Hi,
I've made the choice to instead of getting a BIF machine in a different system and selling the EF 400 5,6 upgrade my A7 to an A7r ii and try the Canon lens with it and the MC-11 adapter that I own. I photograph sitting or gently swimming birds half the time anyway.
Have read that AF performance with this combo can depend upon the lens age (has been in production since the early 90s) (mine is from Sept. 2014 acc. to the date code) and the adapter fw version. Since it seems the MC-11 is hard to downgrade, correct me if I'm wrong, I want to know if anyone has any input on the fw 1.02 that it currently has vs the latest fw that the Sigma Optimization program will install right now.
Definitely upgrade or wait and try with the camera first?
I'm hoping the later date of manufacture of my lens will make it AF at least ok. It kind of has to be better than it was on my A7 anyways..
I've made the choice to instead of getting a BIF machine in a different system and selling the EF 400 5,6 upgrade my A7 to an A7r ii and try the Canon lens with it and the MC-11 adapter that I own. I photograph sitting or gently swimming birds half the time anyway.
Have read that AF performance with this combo can depend upon the lens age (has been in production since the early 90s) (mine is from Sept. 2014 acc. to the date code) and the adapter fw version. Since it seems the MC-11 is hard to downgrade, correct me if I'm wrong, I want to know if anyone has any input on the fw 1.02 that it currently has vs the latest fw that the Sigma Optimization program will install right now.
Definitely upgrade or wait and try with the camera first?
I'm hoping the later date of manufacture of my lens will make it AF at least ok. It kind of has to be better than it was on my A7 anyways..