On-sensor PDAF, will it be as good as mirrored cameras?

Started Oct 10, 2013 | Discussions thread
OP havoc315 Veteran Member • Posts: 4,213
Re: On-sensor PDAF, will it be as good as mirrored cameras?

EinsteinsGhost wrote:

havoc315 wrote:

EinsteinsGhost wrote:

So, if the mirrorless AF system matches SLT AF performance, AND with elimination of mirror, improves high ISO performance, what exactly is it that you believe would be a step back?

Where are you getting that mirrorless AF system will match SLT AF performance?

SLR to SLT transition was that (which you deflected with the excuse on high ISO noise). I expect a similar SLT to mirror-less transition on A-mount. The question is, why would you prefer to assume otherwise?

It has nothing to do with my preference.  It's simple science.  Scientifically, a translucent mirror -- the whole point -- was to preserve dSLR dedicated pdaf. Scientifically, to date, there has still never been ospdaf that can match.

We won't know until products are actually out and tested, but according to the source cited in the first post -- Mirrorless AF system will NOT match SLT AF performance.

Then refrain from drawing conclusions, like you just did (again).

I'm not drawing unfounded conclusions.  That's you.  I was citing a published report.

So far, the best OSPDAF still doesn't quite match dedicated PDAF. Not in the Nikon 1 cameras, not in the Canon 70D. And according to the rumors, not in the Sony A7.

So? And there is no reason to believe that Sony will stick with the OSPDAF system you speak of, to replace the mirror.

You're right.  The new camera will be made out of fairy dust.

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