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A9 >> 693 AF points >> how many CROSS-TYPE?


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Enough about the numbers. Let's talk business - how many of the 693 are really cross-type, high-sensitivity points? Or only a small 5% of the centre frame is covered by such high precision points?

 

Also, can all 693 points be used in 4K video mode? 

 

How is the 25% improvement in AF calculated over the A7Rii? 

 

Also, the silent mode can output in 14-bit uncompressed raw too? Or is it only the mechanical mode, just like a7rii? 

 

Lastly, why not put in the touchscreen for a $4000 camera? It can still be useful for single-frame mode, for AF selection etc..

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Enough about the numbers. Let's talk business - how many of the 693 are really

cross-type, high-sensitivity points? Or only a small 5% of the centre frame is covered

by such high precision points?

 

Also, can all 693 points be used in 4K video mode? 

 

How is the 25% improvement in AF calculated over the A7Rii? 

 

Also, the silent mode can output in 14-bit uncompressed raw too? Or is it only the

mechanical mode, just like a7rii? 

 

Lastly, why not put in the touchscreen for a $4000 camera? It can still be useful for

single-frame mode, for AF selection etc..

   

Doesn't really matter how many are of what type. 

Matters only as to how well they all work. Being 

hung up on type is being mired in the past. 

    

If I understood the video correctly, there really is 

no mechanical mode. It has no shutter, altho it 

can make synthesized shutter sound.    

   

EDIT: Just found some more complete spec data. 

It DOES have a mechanical shutter as well. IOW 

it has both types of shutter. 

   

It does have a touch screen, but only for certain 

operations. Makes sense. Full function touch 

screens are counterproductive.   

    

You've asked questions, number-centered, spec-

centered questions that are cynical and doubtful. 

Given the nature or marketing hype, I don't blame 

you. I often feel that way. But you haven't asked 

any questions about capabilities, about whether 

it has any remarkable user-enabling features.  

   

Just as a frinstintz .... mebbe it has the typical 

Sony sweep pano feature, just by default cuz it's 

a descendant of other Sonys. If it were actually a 

user-enabling advance,  it would be similar to my

friend's silly little Pentax P&S: Instead of a sweep

pano function, the user starts up the pano function

and then takes a series of individual shots, which

will then be knitted into a pano upon completion.

This is a method that, transposed to an advanced

camera, is vastly superior to sweep ... is actually

USEFUL instead of "barely amusing" .... which is

would be a charitable description of sweep pano.   

    

Thaz just ONE example. There are numerous

things that can make a camera a much more

user-enabling device, and these are things not 

represented by numbers.   

   

Sony claims the AF will very reliably track any 

target over the entire frame regardless of eratic 

target motion. Myself being often cynical, let's  

see them prove that. It doesn't matter at all how

many of which type of AF detectors are on the

sensor .... it only matters whether or not the AF

actually performs  the way Sony is bragging that

it will perform ! 

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