Canon 10D Recording System...

[ivor]

Please see below for the Canon 10D Recording System...

Recording format: JPEG (except when Adobe RGB is set) supporting Design rule for Camera File system and RAW

Image format: JPEG and RAW (12-bit)

File size:

(1) Large/Fine: Approx. 2.4 MB (3072x2048 pixels)

(2) Large/Normal: Approx. 1.2 MB (3072x2048 pixels)

(3) Medium/Fine: Approx. 1.3 MB (2048x1360 pixels)

(4) Medium/Normal: Approx. 0.7 MB (2048x1360 pixels)

(5) Small/Fine: Approx. 0.8 MB (1536x1024 pixels)

(6) Small/Normal: Approx. 0.4 MB (1536x1024 pixels)

(7) RAW (3072x2048 pixels)

• RAW + Small/Normal: Approx. 6.0 MB

• RAW + Small/Fine: Approx. 6.4 MB

• RAW + Medium/Normal: Approx. 6.2 MB

• RAW + Medium/Fine: Approx. 6.8 MB

• RAW + Large/Normal: Approx. 6.7 MB

• RAW + Large/Fine: Approx. 8.0 MB


* Exact file sizes depend on the subject and ISO speed.

Quote: Originally posted by rueyloon I'm not a canon user, just a few questions what's the file size of a 6mp, best non-raw quality picture ? what's the size of a raw picture ? how come iso is related to file size ? I should think not. for jpeg, it is usually the complexity of the image that is related to the file size. for example, a picture with a lot of details = large file size picture with areas of no/little details = smaller file size cheers

[rueyloon]

interesting that there are different sizes/settings for raw

I tot the meaning of RAW = unprocessed data, by resizing, it probably mean some post processing already took place...

[nuts]

yes, RAW is raw
the different sizes is due to the different quality of the embedded jpg stored in the RAW file.

..NuTs..

Quote: Originally posted by rueyloon interesting that there are different sizes/settings for raw I tot the meaning of RAW = unprocessed data, by resizing, it probably mean some post processing already took place...

[rueyloon]

Quote: Originally posted by nuts yes, RAW is raw the different sizes is due to the different quality of the embedded jpg stored in the RAW file. ..NuTs..

soh des neh ....

[oeyvind]

Too bad there's no function in 10D, D30 or D60 to NOT to have any JPEG embedded in the CRW file format.

1D and 1Ds do have function to have just RAW (which is in .TIF format).

[rueyloon]

Quote: Originally posted by oeyvind Too bad there's no function in 10D, D30 or D60 to NOT to have any JPEG embedded in the CRW file format. 1D and 1Ds do have function to have just RAW (which is in .TIF format).

but no matter what the RAw in the 10D, still smaller than s2pro files, the S2pro RAW = 12MB

but then again, .TIF isn't considered RAW liao mah.....

[oeyvind]

Quote: Originally posted by rueyloon but no matter what the RAw in the 10D, still smaller than s2pro files, the S2pro RAW = 12MB but then again, .TIF isn't considered RAW liao mah.....

1D & 1Ds' RAW format is in .TIF format however these are not your normal TIFF format but 1D/1Ds RAW format.

Quote from DPReview

Once more Canon have stuck to the Kodak convention of giving their RAW files a TIF file extension (not the CRW extension used on the D30/D60).

[ivor]

I guess diff system have diff algorithm...

Quote: Originally posted by rueyloon interesting that there are different sizes/settings for raw I tot the meaning of RAW = unprocessed data, by resizing, it probably mean some post processing already took place...

[ivor]

Not only S2 Pro, but Olympus system too... like 10MB for E20...

Quote: Originally posted by rueyloon but no matter what the RAw in the 10D, still smaller than s2pro files, the S2pro RAW = 12MB but then again, .TIF isn't considered RAW liao mah.....

[Zerstorer]

The above table is pretty self explanatory, but are there any more details on the original reference to lower ISOs having smaller filesizes?

By right, the size of the jpeg should depend totally on the nature of the image, whatever ISO shouldn't matter as it is the amount of detail in the image that determines the compressible filesize.