Long "list" .... but Sigma not yet on it ...

[Erik Magnuson]

Why do XF3 raw images have to be processed sequentially? After all,
unlike Bayer sensors, photosites aren't dependent on the value of
neighboring photosites for their values.

Why couldn't Sigma use more than one processor to process the
signal in parallel? Maybe use three of 'em... one for each color?

But the colors are dependent on the other colors. If they were going to process in parallel, they would process pixels in parallel and not colors. However, there is more that goes on than the simple 3x3 color conversion: sharpening, blurring, and (gasp) noise reduction. The preview bitmap of an SD9/SD10/x530 appears to be what you get from a simple color matrix operation. It's interesting to compare that to SPP output.

Three of the current processors used in the SD10 have got to be a
lot cheaper than three brand-new, super-fast processors...

The idea is to reduce the parts count, not increase it. The way everyone else does it is to a single chip that contains both a regular CPU core and some specialised signal processing logic. (It also looks like the SD14 is a smaller body - no room for 3 processors much less the power/heat budget.)

In short, adding more buffer memory and a couple of processors, and
some smart software engineering could make the SD14 a very fast
camera indeed.

If Sigma did not invest in the mechanical R&D for a more than 3 FPS mirror/shutter, then there is little point in fast processing.

--
Erik

 

[JoePhoto]

Just joking.

Everybody knows its not going to be over 6 x 3, but I had hoped it
would be more like 5.4 - 6 mp x3 at least.

Even if it is 4.6 x 3, if they fixed everything else and its got
4-5 fps I will probably go for it since I use my camera mostly for
telephoto and action shots.

The teaser sort of hints at that anyway.

NO ... it does NOT ... it hints otherwise ...

I suggests that image-quality should be more important than "features".

We ALREADY had the best quality ... we still have EQUAL quality with the best of the others ...

It is FEATURES that we are missing now.

The people that are switching are because of faster frame-rates, and faster-focusing, higher ISO, JPEG ... etc.

--
http://www.troyammons.com
http://www.pbase.com/tammons
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--
Thanks for reading .... JoePhoto

( Do You Ever STOP to THINK --- and FORGET to START Again ??? )