unfortunatelly, the AF system of the A7ii (and also A7sii) is of the old generation and is the worst of any actual E-mount model portofolio (a5100, a6xxx, a7rii, a9, are all much better)
This is incorrect.
The A7II has OSPDAF. The A7S series (I or II) does not. Those are CDAF-only, like the A7R.
The A7II native AF is much faster than the A7SII.
why is it incorrect?
did I said that the A7sii AF is better than A7ii ?
(Yes the A7s i-ii do not have OSPDAF)
There are plenty of actual E-mount models with weaker AF than the A7II... and only the A7R2. A9, A6500 and probably A6300 are better.
Except the A7sii, there is no E-mount model actually sold by Sony which is slower than A7ii in AF. You can add to your list a6000 and 5100 (which means the whole actual portofolio, except A7s, which mainly video oriented)
I would not expect the A6000 to beat it, and, while the A7II gets fast PDAF with adapters (LA-EA3, MC-11), the A6000 does not. Pretty sure the A5100 is in the same boat as the A6000.
It is not matter of expecting... these are facts A5100 and A6000 have same sensor and AF system... And they are both much faster than the A7ii
A7ii was not compatible with PDAF via adapters too when launched. It got a software update much later after the release of A7rii that have that functionnality.
unfortunatelly the A6000 did not got the update, as the A6300 came at the same time, and perhapd Sony did not want to add that functionality to the A6000 to not cripple A6300 sales. On the excat same way as they did not provide update for the A7i.
Yes for sure, if you compare A7ii and A6000 on adapted lenses, the A7ii will be much faster. But not on native E-mount lenses.
ps. The update as far as I know is just to switch to 100% OSPDAF when adapted lenses are attached, and not use the final step of contrast detect for adjustment/precision as in native lenses. This is because DSLR lenses and their AF system are not suitable and very slow with CDAF.
Having used all these cameras (except the A9), for me, the A7ii AF system, even slightly faster, is from the same technology and generation as the A7i and Nex6 (2012)
all the others; A5100, A6xxx, A7rii, A9 are in another league
Also, I am not saying that A7ii AF system is good or bad (it highly related to the application), I am just saying that it is the less performing AF system of the actual E-mount camera portofolio (A7sii apart)
In good light, with current firmware, and the right lenses, the A7II AF is quite fast and accurate. With the SEL2470Z, for instance, it's pretty much instant. When you're comparing the LA-EA4 to native lenses in low-light, you are comparing off-sensor PDAF to on-sensor PDAF. The off-sensor sensels in the LA-EA4 only get 1/3rd of the light, but they're much bigger, and some of them are cross type. On the other hand, on-sensor has advantages of more points (117 vs. 15) and no need for microfocus adjustment.
Completelly agree, this is what I said.
