C200: Canon's Quad-Pixel autofocus sensor.

It's just a random patent out of the dozens (hundreds?) they file every year.

Most of the ideas never make it (as priorities sometimes change overnight), or finally may several years later.
 
It seems that AI, as used on the latest Sony A6400, trumps even the DPAF and that's the direction future camera development will be going.
 
DLD said:
It seems that AI, as used on the latest Sony A6400, trumps even the DPAF and that's the direction future camera development will be going.
Click to expand...

AI also solves the color science problem. Expect it soon (from pretty much everyone, since they're all working on it).

Some form of light phase detection is still useful- either with DPAF or some phase detect pixels (AI can 'tell' how many are really needed).

With a suitable deconvolution filter + AI, contrast data could also make accurate predictions to eliminate all hunting. Having phase and (someday soon with multiple sensors) depth data also helps: the more the better with AI.

Perhaps this combination is what Sony is doing / working on. The A6400 demos are impressive. Can't wait for the A7S III! haha
 
Unfortunately, it's still up to the lenses to do the other half of the work.

I've been playing around with a X-T30, which has excellent AF capabilities, but the 56mm f/1.2 renders them useless. The AF box never misses a beat in following the eye (you can choose left or right), but the lens has a fit for no reason. (It's notorious for bad AF.)

So you can use all of the AI you'd like, but it won't help if there isn't a compatible piece of glass on the other end that's on the same page.
 
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