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UnknownVT · 01-14-2009, 03:41 PM

Originally Posted by Ashley

Last night I deecided to see what the difference is between an untouched raw and straight from camera jpeg photograph when printed out. I set my K10D to RAW+jpeg

It's pretty well known that K10D JPGs are are not optimal -
There is even a current thread on this - why don't people like K10D JPEGs (with lots of links to comparisons and comments) -
that does not mean they are bad - just that they could be better
and there are lots of examples out there comparing K10D JPG and RAW -

One of the best I've seen comes from the DCRP review of the Pentax K10D - about 3/4 way down the page they say:

" Summarizing my feelings about the K10D's image quality is not easy. When shooting JPEGs with the camera at its default settings, the K10D's photo quality was somewhat disappointing by D-SLR standards. Photos are soft (which is, admittedly, common on midrange SLRs) and colors are fairly dull. When I started taking RAW and JPEG images at the same time, I was floored by the differences: the RAW images were significantly better, and truly show what the camera is capable of. "

followed by quite a few examples.

dpReview also pointed out the difference between JPG and RAW -

" Image sharpness / demosaicing (JPEG vs. RAW)
We were a little disappointed that the K10D's built-in image processor didn't deliver the crisp sharp edges which can be produced by shooting RAW and converting using a third party engine (such as Adobe Camera RAW). It's speculation but it does appear to me to be a combination of the type of demosaicing algorithm used (not isolating edge detail well enough) and the type of sharpening algorithm (as discussed earlier this appears to work to enhance the 'undershoot', the black side, of an edge). As we saw in the Image Parameters section of this review increasing sharpening only appears to increase the visibility of texture type detail rather than edge sharpness.
Below you can see a comparison using our standard studio scene between JPEG straight from the camera and a RAW converted using Adobe Camera RAW (as per our normal RAW converter settings, no sharpening and then a 80% unsharp mask applied after conversion). "

01-14-2009, 03:41 PM	#13
UnknownVT Pentaxian Location: USA Gallery Photos: 0 Posts: 254	Originally Posted by Ashley Last night I deecided to see what the difference is between an untouched raw and straight from camera jpeg photograph when printed out. I set my K10D to RAW+jpeg It's pretty well known that K10D JPGs are are not optimal - There is even a current thread on this - why don't people like K10D JPEGs (with lots of links to comparisons and comments) - that does not mean they are bad - just that they could be better and there are lots of examples out there comparing K10D JPG and RAW - One of the best I've seen comes from the DCRP review of the Pentax K10D - about 3/4 way down the page they say: " Summarizing my feelings about the K10D's image quality is not easy. When shooting JPEGs with the camera at its default settings, the K10D's photo quality was somewhat disappointing by D-SLR standards. Photos are soft (which is, admittedly, common on midrange SLRs) and colors are fairly dull. When I started taking RAW and JPEG images at the same time, I was floored by the differences: the RAW images were significantly better, and truly show what the camera is capable of. " followed by quite a few examples. dpReview also pointed out the difference between JPG and RAW - " Image sharpness / demosaicing (JPEG vs. RAW) We were a little disappointed that the K10D's built-in image processor didn't deliver the crisp sharp edges which can be produced by shooting RAW and converting using a third party engine (such as Adobe Camera RAW). It's speculation but it does appear to me to be a combination of the type of demosaicing algorithm used (not isolating edge detail well enough) and the type of sharpening algorithm (as discussed earlier this appears to work to enhance the 'undershoot', the black side, of an edge). As we saw in the Image Parameters section of this review increasing sharpening only appears to increase the visibility of texture type detail rather than edge sharpness. Below you can see a comparison using our standard studio scene between JPEG straight from the camera and a RAW converted using Adobe Camera RAW (as per our normal RAW converter settings, no sharpening and then a 80% unsharp mask applied after conversion). "