jmsail365 Loc: Stamford, Ct

I was wondering if anyone has experience with both these camera's autofocus systems and what they thought of them? (The new a6500 apparently has not changed the AF system from the a6300.)
The a7rII states it has 399 phase detection points and 25 contrast detection points. The a6300 has 425 phase detection points and 169 contrast detection points.
I have the a6300. At times I have found it hunting for an object to focus on when it's readily apparent. With the additional phase detection and contrast detection points one might think the a6300 would have an advantage over the a7rII. So I'm wondering if that's really the case or is the a7rII superior since it's matched to a full frame sensor and apparently is a much better camera in many other areas??
I'd be interested to hear the opinions of the UHH folks.

Lorendn Loc: Jackson, WY

I have no experience with the A6300 but have used the A7Rii extensively for more than a year. The focus speed is dependent upon the lens and the lighting conditions (as well as a clear subject.) It is very fast with a Sony prime lens and with most of the wide Canon zooms using a Metabones IV adapter. Things start to go south in early morning twilight and a long tele. The 100-400mm f/4-5.6 can be very problematic in low light. In low light even the 600mm f/4 sometimes is problematic in low light. For these reasons, I have given up on the A7Rii for almost all wildlife shooting but still love it for landscape work.

bkellyusa Loc: Nashville, TN

Is this with a Sony lens and what are the conditions. Is this in l
ow light. What focusing modes???

jmsail365 Loc: Stamford, Ct

This is with a sony lens and not in low light. However I have been using zoom lenses not primes. Focusing modes have been AF-A and probably AF-C.
My question is really which has the better focusing system. Judging by Lorendn's response that he's given up the a7rII for shooting wildlife it would seem Sony still has some work to do with it's autofocus system. At least one review I read of the a7rII said it was inconsistent compared to the Canons at pro sports events. My experience with the a6300 is Sony still hasn't gotten to where it needs to go with it's AF system.

Lorendn Loc: Jackson, WY

I certainly don't want to imply that the A7Rii is not a fantastic camera. It is great in low light, high ISO, and has unbelievable image resolution and good dynamic range. My issue with wildlife, action, or sports is the occasional slow focus and unacceptable 5 fps burst speed. Otherwise is is amazing and perhaps one of the best full-frame bodies on the market today.

Reinaldokool Loc: San Rafael, CA

My first a6000 did a lot of focus-hunting. A year later I replaced it with another. The firmware upgrade cured that problem. My a6300 has been amazingly fast and accurate in focus from the beginning. I used it to shoot about 200 runners individually crossing the finish line. I shot these at the high continuous rate (11fps). The focus had no problem following these folk from 10-20 feet before the line through to a similar distance beyond. Almost all the shots were in perfect focus.

I considered the A7 II but decided that the a6300 better fit my needs, partly because reviews said it's focus was better.

bkellyusa Loc: Nashville, TN

I don't understand the 5 fps out of an A7Rii. I should be easily twice that high.

Lorendn Loc: Jackson, WY

Three serious problems with the A7Rii for professional photographers: 1) very short battery life, 2) slow burst rate of 5 fps, and 3) only a single memory card slot. Sony needs to address these issues in a $3,400 camera body.