Some friends with DSLRs have recently given me some tutorials on how to optimize DSLRs for RAW shooting and so minimize noise without blowing out the R G B channels of the sensor.
While there are a number of names for this, I have had the best results searching using UniWB and ETTR. If there are any other names for this I would be interested.
One of the more complete websites discussing this is
http://www.8thcross.com/2009/09/28/uniwb-a-good-tool-for-good-hdrs/ (lists 9 other websites)
What I did not realize is that most DSLRs are optimized for shooting JPGs not RAW.
http://www.pentaxforums.com/forums/pentax-dslr-discussion/68043-finally-camera-raw-histogram.html http://www.luminous-landscape.com/tutorials/right-hista.shtmlTo optimize for RAW most suggest minimizing the settings for contrast, image sharpening and saturation and either use a dark frame or completely saturated frame for determing White Balance.
http://photography-on-the.net/forum/showthread.php?t=485349Since the sensor for our Canon CHDK point & shoot cameras is smaller than these DSLRs, am wondering if CHDK can do these same things?
Since I now only shoot RAW with my CHDK Canon optimizing for JPGs is not an interest.
It was hard for me to believe that someone else did not have this idea so started searching the forum. Got no hits for UniWB and only one for ETTR
http://chdk.setepontos.com/index.php/topic,638.0.html but it was started 25 / February / 2008 and ended 20 / July / 2008. This author was Last Active: 05 / December / 2008, 11:02:45. Also the discussion was not about minimizing the cameras contrast, image sharpening, saturation and White Balance settings.
Am interested to learn if these settings can be changed for any ver of CHDK?
Also hope some others may be interested in doing this.
For one of my searches I used "raw histogram" and got ~ 18,600 hits. For some reason the Pentax Forum link by dlacouture listed as "Finally, an in-camera Raw Histogram!" does not work correctly.
Ken