I don't know what the purpose of the jpeg option is. As far as I can
see, the only benefit of it is to store more pictures on the card. 

It is no more difficult to plug the camera into a printer and print
from raw files. You can get usable results. Results that are at least
as good as jpeg. 

To the best of my knowledge there are no intrinsic properties of raw
files that force anybody to do any post-processing at all. All of the
pictures that I have had from my Olympus, for example, have been
perfectly usable without post-processing. Of course, this doesn't mean
they are exhibition standard. But nor are jpegs under the same
circumstances.

You can do an experiment and judge for yourself rather than take my
word for it. Borrow a digital camera, shoot some raw, some jpeg, and
get some prints.

If you think about the processes that are going on, it must be true. 

Suppose you decide that you are going to 'shoot jpeg', which only
means you're going to store jpeg. You make an exposure which the
sensor records. The software reads the data from the sensor, converts
it to jpeg on the fly and stores the results. 

When you walk up to the printer and plug the camera in, the software
in the camera reads the jpeg file and converts it into the format that
the printer understands.

If you decide to shoot raw, then when you make an exposure the
software reads the data from the sensor and stores it without
converting it to jpeg. 

When you walk up to the printer and plug the camera in, the software
in the camera reads the raw file and converts it into the format that
the printer understands.

There is no reason at all why the same algorithm that makes jpeg
results USABLE, as you put it, wouldn't be used on the conversion from
raw to the printer format, since both processes start from the same
place, and end up in the same place.

--
 Bob
 

> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On 
> Behalf Of J. C. O'Connell
> Sent: 16 December 2006 20:45
> To: 'Pentax-Discuss Mail List'
> Subject: RE: K10D review online
> 
> But isnt the purpose of using the jpeg output
> option of the camera so you can just go
> straight to a print lab and print the jpegs
> without having to do any digital processing
> of the images on a PC or laptop? It sounds
> like you cant do RAW and get instant **USABLE**
> results which is what I meant.
> jco
> 


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