fuji s7000 raw plug in

My fuji s7000 creates 12mp raw files from 6mp sensor. This is default and cannot be changed. When using photoshop cs to open raw image, by default it gives me a 6mp image size, I have to choose the 12mp size (indicated by a + sign). Is the photoshop software somehow bypassing the fuji interpolation and giving me the original 6mp raw image??

thanks

The Photoshop software does not use the Fuji software.
The camera is only 6 MP, and so that is the default size given in Adobe Camera Raw.

Chris

In article , Billy Radio
wrote:

My fuji s7000 creates 12mp raw files from 6mp sensor. This is default and cannot be changed. When using photoshop cs to open raw image, by default it gives me a 6mp image size, I have to choose the 12mp size (indicated by a + sign). Is the photoshop software somehow bypassing the fuji interpolation and giving me the original 6mp raw image??

thanks

On Sat, 8 May 2004 16:35:03 -0400, "Billy Radio" wrote:

My fuji s7000 creates 12mp raw files from 6mp sensor. This is default and cannot be changed. When using photoshop cs to open raw image, by default it gives me a 6mp image size, I have to choose the 12mp size (indicated by a + sign). Is the photoshop software somehow bypassing the fuji interpolation and giving me the original 6mp raw image??

The S7000 has a 6 million dual ccd sensor. That means there are two sensor elements, a small one and a big one, for each pixel.

The fuji raw file contains both pixels, PS CS combines both values into one.

Transferring the Fuji pixels into a usual itmap is not so simple as the sensor element pattern is not a standard rectangular system with color ilters in a Bayer pattern but big and small sensor elements interleavd in a octogon pattern.

Michael

"Chris Cox" wrote in message

The Photoshop software does not use the Fuji software.
The camera is only 6 MP, and so that is the default size given in Adobe Camera Raw.

True, it 'only' records 6MP but, due to the 45 degree rotated sensor orientation, it has a higher horizontal/vertical resolution that can be achieved from a non-rotated sensor. This 'additional' resolution is lost when converting to a 6MP grid, but can be maintained when using a 12MP grid, although some grid positions must be filled by interpolation.

The difference is not only theoretical, but can be demonstrated by comparing the large (!) 6MP
http://www.dpreview.com/reviews/fujifilms7000/Samples/Compar ed/s7000_6mp.JPG and the 12MP
http://www.dpreview.com/reviews/samples/rescharts/fuji_finep ixs7000.JPG output.

While the rotation exploits the fact that non-rotated diagonal grid resolution is higher (diagonal line pitch is Sqrt(2)/2 = 0.707 versus 1.0 hor./ver.) it doesn't really create more resolution, but it does require a larger grid to store all of it.

Bart

"Bart van der Wolf" wrote in
news:409e26ad$0$559$:

True, it 'only' records 6MP but, due to the 45 degree rotated sensor orientation, it has a higher horizontal/vertical resolution that can be achieved from a non-rotated sensor. This 'additional' resolution is lost when converting to a 6MP grid, but can be maintained when using a 12MP grid, although some grid positions must be filled by interpolation.

I think there is a lot more interpolation going on than you are hinting at:

http://www.dpreview.com/reviews/fujifilms7000/page14.asp

As the reviewer notes, "not particularly attractive."

"Eric Gill" wrote in message
SNIP

I think there is a lot more interpolation going on than you are hinting

at:

There most certainly is, but the point I tried to make is that 6MP is not sufficient to retain full resolution.

Bart

"Xalinai" ha scritto nel messaggio

On Sat, 8 May 2004 16:35:03 -0400, "Billy Radio" wrote:

snip

The S7000 has a 6 million dual ccd sensor. That means there are two sensor elements, a small one and a big one, for each pixel.

I think you are mistaking with the superCCD SR sensor of the Finepix S20 Pro http://www.dcresource.com/reviews/fuji/finepix_s20_pro-revie w/index.shtml that has 3.1M S-sensors + 3.1M R-sensors grid giving a 3.1M pixels image with a higer dynamic range than conventional sensors (a lot like a speaker with a tweeter and a woofer is able to reproduce a wider range of frequencies than a single driver one).

The S7000 has a superCCD HR with 6.3M effective pixels

FDKS

snip

I think you are mistaking with the superCCD SR sensor of the Finepix S20

Pro

http://www.dcresource.com/reviews/fuji/finepix_s20_pro-revie w/index.shtml that has 3.1M S-sensors + 3.1M R-sensors grid giving a 3.1M pixels image with a higer dynamic range than conventional sensors (a lot like a speaker with a tweeter and a woofer is able to reproduce a wider range of frequencies than a single driver one).

The output of the S20 Pro is 3.1M + 3.1M = 6.2Mpixels that have to be combined in some way to get your higher range pic (I think it works almost like having 2 pics, a dark details one and a bright details one that will be merged into an all-over well detailed picture).
As far as I know some people have written their own RAW data extraction program for the S20 Pro and they've been able to get the two different sensors semi-frame and work some interesting things out of them. http://www.pbase.com/image/27104096/large
http://www.geocities.co.jp/SiliconValley-PaloAlto/9919/s7raw .html

FDKS

"Fedman Kassad" wrote in message
[]

The output of the S20 Pro is 3.1M + 3.1M = 6.2Mpixels that have to be combined in some way to get your higher range pic (I think it works

almost

like having 2 pics, a dark details one and a bright details one that

will be

merged into an all-over well detailed picture).

No, the output is 3.1MP with a higher dynamic range. Quoting a higher number of MP implies a higher spatial resolution, which is not what the camera offers. We already have enough of that sort of confused thinking on this group in another connection....

Cheers,
David

On Mon, 10 May 2004 06:27:17 +0200, "Fedman Kassad" wrote:

"Xalinai" ha scritto nel messaggio

On Sat, 8 May 2004 16:35:03 -0400, "Billy Radio" wrote:

snip

The S7000 has a 6 million dual ccd sensor. That means there are two sensor elements, a small one and a big one, for each pixel.

I think you are mistaking with the superCCD SR sensor of the Finepix S20 Pro http://www.dcresource.com/reviews/fuji/finepix_s20_pro-revie w/index.shtml that has 3.1M S-sensors + 3.1M R-sensors grid giving a 3.1M pixels image with a higer dynamic range than conventional sensors (a lot like a speaker with a tweeter and a woofer is able to reproduce a wider range of frequencies than a single driver one).

The S7000 has a superCCD HR with 6.3M effective pixels

That is exactly what I said. The sensor in the Finefix S7000 is the same system as the Finepix S20Pro but HR - high resolution, meaning
6.3 Million pairs of sensors.
This means: you have data from 12 million sensors resulting in 6 million pixels. But if you save raw sensor data you get the data for each of the big and each of the small sensors.
And with the special physical arrangement of the sensors it is not possible to return a computer bitmap without interpolation.

Michael