Sony A7RIII AF tracking vs newer version on A7C,A6600 and A7IV

Seeing an original A7RIII not updated A version for a better price than the new A7IV.

How does tracking system compare to the newer version on A7C, A6600 and gather newer yet A7IV. I do like the idea of better image quality for my landscape photos but I do shoot wildlife too. I have a Grizzly Bear wild life trip next spring.

There is no real time tracking (RTT) on the RIII and no bird eye detect. I would hazard, all things being equal, the AIV will give you more "keepers" than the RIII for moving subjects. That is far and away the case between my A9II with RTT and my A7RIII without.

rsmithsd73 said:

There is no real time tracking (RTT) on the RIII and no bird eye detect. I would hazard, all things being equal, the AIV will give you more "keepers" than the RIII for moving subjects. That is far and away the case between my A9II with RTT and my A7RIII without.

Click to expand...

Since I now ordered an A7RIII and having had an A7III - which I found excellent regarding autofocus - would you say that a grizzly is faster that a toddler?

That was in essence how I read the OP question.

Thanks

Deed

deednets said:

rsmithsd73 said:

There is no real time tracking (RTT) on the RIII and no bird eye detect. I would hazard, all things being equal, the AIV will give you more "keepers" than the RIII for moving subjects. That is far and away the case between my A9II with RTT and my A7RIII without.

Click to expand...

Since I now ordered an A7RIII and having had an A7III - which I found excellent regarding autofocus - would you say that a grizzly is faster that a toddler?

That was in essence how I read the OP question.

Thanks

Deed

Click to expand...

Those Griz can move pretty quick when they want to—- got to watch those toddlers.

rsmithsd73 said:

There is no real time tracking (RTT) on the RIII and no bird eye detect. I would hazard, all things being equal, the AIV will give you more "keepers" than the RIII for moving subjects. That is far and away the case between my A9II with RTT and my A7RIII without.

Click to expand...

It does have this (below). Not the same generation as the new plain IV, so your comments on kepis is correct. But still it has a previous generation of this, and is an improvement over the original firmware released with the RIII in 2017.

"Animal-eye AF feature now available with software update" From Sony's site.

"Sony a7 III and a7R III Firmware Update v3.0 with Real-time Eye AF Now Available"

"with Real-time Eye AF Now Available. Back in January around the a6400 launch, Sony released the details of planned firmware update for it's class-leading Sony a9 full-frame mirrorless camera, firmware version 5.0, adding Real-time Tracking AF and Real-time Eye AF."

"This firmware was eventually released at the end of March 2019, and now Sony is also releasing the promised Firmware Update v3.0 for the Sony a7 III and a7R III."

deednets said:

rsmithsd73 said:

There is no real time tracking (RTT) on the RIII and no bird eye detect. I would hazard, all things being equal, the AIV will give you more "keepers" than the RIII for moving subjects. That is far and away the case between my A9II with RTT and my A7RIII without.

Click to expand...

Since I now ordered an A7RIII and having had an A7III - which I found excellent regarding autofocus - would you say that a grizzly is faster that a toddler?

That was in essence how I read the OP question.

Thanks

Deed

Click to expand...

LOL great analogy!

But from the way I see it, however, this is moot: if a grizzly comes into the scene, is the photographer faster than the grizzly?

True story: at Yosemite, there is a popular view of the valley, where you come out of a tunnel, and a vista unfolds in front of you. Like many, I stopped to take a few pics. This was early enough in the year so not crowded at all. There is a trail behind the parking area, where you can go up to get a higher view. So I followed some others and started going up.

After a bit, someone came down the trail, moving a little fast. Then another, little faster. Then another, moving even faster. Then some people that had started just ahead of me came down, looking a little worried, and in even more of a hurry.

So I asked them, "what's up?' One was to busy to answer, but the other slowed down for a second, pointed up the trail, and whispered "bear".

April 26, 2009. Canon 1D MIII, Canon L 24-70 f2.8 As for the bear, did not get it's name ...