Poll Time! Will you buy the R Locked

Don Lacy wrote:

RubberDials wrote:

Don, I'm not sure where you got this idea from but the A7III AF is definitely 'pro level' and is better than the 5Dmk4's AF.

In the field shooting next to photographers I respect who have many years experience with Canon and now shoot Sony where do you get yours.

"the fact that you could literally swap a Canon 1DX II for an a7 III and still get a similar or better hit-rate at an action event is unprecedented."

So you have no first hand experience with a 1DXMKII or 5DMKIV or for that matter an A7 nor have you shot in the field with these cameras nor know or talk to other photographers who have years of experience shooting action especially BIF.

https://www.dpreview.com/reviews/sony-a7-iii-review/11

I was very courteous to you as we've spoken before and I've praised your work but I'll know not to bother in future.

When comparing the technical aspects of cameras it is impossible to prove anything by exchanging anecdotes or personal experiences as anecdotal experience is unquantifiable and incomparable. You need to compare samples from objective testing under control, which is handily provided for you by this website.

The quote is from the A7III review on this site by the senior technical editor. I included it because it immediately refutes your claim that the A7III AF is not at 'pro level'. There's much more about the competence of the AF of the A7III in the review. It is basically the best AF system on the market outside the 1DXII/D5/A9 triumvirate.

This is marketing BS, sorry. Don, surely you're old enough to remember that lenses like the 85/1.2 and the 50/1.2 appeared originally on FD mount which has a much smaller throat diameter and crucially a very long flange distance.

If the bazooka-sized Canon 28-70/2 is a big seller Sony will make an equivalent straight away.

Based that statement off of the head of Sigma's interview on the issues for designing high end glass for the E mount maybe he actually knows more then you.

He may know more than me but I'm not arguing with him, I'm arguing with you – and your knowledge is the bottleneck to this discussion.

Since you haven't provided a link to the person you're basing your argument on and since you haven't elaborated why Sony can't make a 50/1.2 or a 28-70/2 we'll just have to assume that you don't know of any reason and are just regurgitating the current marketing BS.

Sony has filed a patent for a 28-70/2 lens incidentally. https://photorumors.com/2016/01/28/sony-fe-28-70mm-f2-lens-patent/