On 15 Oct 2003 at 0:59, Rob Brigham wrote:

> Seeing the full size files, this is clear cut for me.  Jpg is not a
> problem from a compression point of view, but creating the jpgs from the
> camera is throwing away some of the information from the image capture
> which can never be recovered.  If you have any small exposure error then
> RAW will probablybe able to correct that for you, but jpg will not.

I came to very similar conclusions when I first ventured into digital image 
capture. This is precisely why I regularly check my historgams when shots are 
critical. Not only can you determine the optimum exposure you can also match 
the cameras contrast control to the scene. For instance why flat line at the 
top and bottom of the histogram when a high contrast setting will provide a 
broader histogram with obviously greater delineation across the light range of 
the scene.

Shooting RAW has more drawbacks than positive attributes for me. Saving is 
slow, file size is huge, I can't zoom the RAW image on review in the camera, my 
RAW import utility is poor and even the better third party s/w is pretty slow. 
I  spent some time learning how to optimise capture and I save in-camera in 
jpeg, I'm most often very pleased with the results. I'm still keen to have some 
time with the *ist D to see if the RAW processing stream has improved any.

Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998

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