fuki xf10 uses same Fuji a5 cpu/ a lot of the programming it seems and as such several reviews have pointed out that it responds slow to menu changes, focusing
we have to see final reviews of the griii on the focusing but all the grs we have used so far respond to menu and changes fast And from videos the griii keeps this
The DPR review of the XF10 is generally scathing, IMO. In a way they are saying it is pretty to look at, ugly to use.
Regarding AF they say, "
Though the XF10 has a hybrid autofocus system with phase detection, we weren't blown away by autofocus accuracy. Or speed, for that matter." Which just goes to show how much 'AF snobbery' there is around the necessity for PDAF. I have had CDAF cameras that are lightning quick and super-accurate.
It is also a cautionary note about the GRIII's hybrid AF, ie, there is no necessary connection between hybrid AF and superior AF.
Some have different views of how good the xf10, xa5 etc AF is, some say fine, some say atrocious. Sometimes hard to determine on a forum and review.
I actually think the GR AF is very reliable although pretty bad in low light.
In comparison my xt20 AF is far superior in speed and tracking, low light, however, it is much less reliable, soo many more out of focus shots on the fuji. so is the AF actually better? hmm
In any case if the GRIII af is better than the GR i'll be happy, especially if low light AF is improved. cant be any worse right?
The high iso shots on GRIII look great to me, hopefully comparable with the fujis.
The one think that im very nervous about is the ergo and handling of the GRIII.
The GR is excellent in this area but im not sure how the GRIII can be anything but worse due to lack of dials/buttons and the touch screen are always worse if they replace a physical dial button. Touch screen is fine for navigation and touch AF though.