Nikon D40 RAW file size discrepancy

[rogersmj]

I remember some of the reviews I read indicating that the D40 produced RAW files that were around 17 or 18MB...the RAW files I'm getting from mine are about 6-7MB. Am I missing out on something? How big should 6MP RAW files really be? As far as I can tell there aren't quality settings for RAW, since it's just sensor data, right?

 

[Kebabselector]

Nothing wrong with the camera it's normal for raw. 6mp x 3 colour channels =18.

 

[rogersmj]

Nothing wrong with the camera it's normal for raw. 6mp x 3 colour channels =18.

I'm confused...first, 6MP != 6MB. Second...if they're supposed to be 18MB, why are mine only 6MB?

 

[compuwar]

I remember some of the reviews I read indicating that the D40 produced RAW files that were around 17 or 18MB...the RAW files I'm getting from mine are about 6-7MB. Am I missing out on something? How big should 6MP RAW files really be? As far as I can tell there aren't quality settings for RAW, since it's just sensor data, right?

My D2x only produces 12MB NEFs, I think you misread or misremembered something. AFAIR, the D40 only produces compressed NEFs, so you're likely in the top of the range if they're 6-7MB.

 

[heehee]

The D40X I have produces RAW files that are around 10 MB.

 

[Kebabselector]

I'm confused...first

Using rough maths, my 5D is 12.8mp the RAW file size is between 12-14mb. Uncompressed the images are around 36mb

 

[rogersmj]

OK that clears t up, thanks everyone!

 

[TimJim]

My D80 produces RAW's at about 9mb and it has 10.2 mp

 

[teleromeo]

Nothing wrong with the camera it's normal for raw. 6mp x 3 colour channels =18.

wrong !

the camera sensor records only one colour per pixel. The 3 colour per pixel info is generated when the file is converted with a raw convetor.

 

[Everythingisnt]

wrong !

the camera sensor records only one colour per pixel. The 3 colour per pixel info is generated when the file is converted with a raw convetor.

Dang.

Cameras should use the Videocamera 3-chip system then .