03-08-2016, 06:12 AM
I already did - but my adapter is only manually 
. The core of stopping down's project is the new and first fully AF-everymode Adapter from Sigma - which is not available yet. Also, the Sony's AF is a different story than Fuji's dated and updated AF.
Continuous AF on the Fuji with a native lens is a nightmare in low light. it just can't lock on and I think, everything from processor to AF-drive is too slow and trying to get a precision which you can't get from moving subjects.
Oh, and another thing: Brightcolors already mentioned something about "fake sensitivity" of the AF-module, I recall very vague - please correct me, BC. I don't know about that. But from f/5.6 we could use only 15 from 51 AF points and although the camera recognizes the aperture - it has no consequences. I'd expect it to switch to the possible AF points, instead of that you can use all of them and spray and pray... Maybe it needs them for AF-tracking in 3D continuous mode, which works fine on fast enough lenses.
Anyway, with the Sigma you come quickly to conditions when it doesn't matter anymore if you have a "fast" PDAF or "slow" CDAF, because it's very probable you miss a bird in flight. Good news: You don't need to get up so early...
So, I also look with some interest on "how does it Sony?" but at the moment not many can tell.
. The core of stopping down's project is the new and first fully AF-everymode Adapter from Sigma - which is not available yet. Also, the Sony's AF is a different story than Fuji's dated and updated AF.Continuous AF on the Fuji with a native lens is a nightmare in low light. it just can't lock on and I think, everything from processor to AF-drive is too slow and trying to get a precision which you can't get from moving subjects.
Oh, and another thing: Brightcolors already mentioned something about "fake sensitivity" of the AF-module, I recall very vague - please correct me, BC. I don't know about that. But from f/5.6 we could use only 15 from 51 AF points and although the camera recognizes the aperture - it has no consequences. I'd expect it to switch to the possible AF points, instead of that you can use all of them and spray and pray... Maybe it needs them for AF-tracking in 3D continuous mode, which works fine on fast enough lenses.
Anyway, with the Sigma you come quickly to conditions when it doesn't matter anymore if you have a "fast" PDAF or "slow" CDAF, because it's very probable you miss a bird in flight. Good news: You don't need to get up so early...
So, I also look with some interest on "how does it Sony?" but at the moment not many can tell.