William Robb wrote: >>From Wendy's and your explanations, I surmise that the sensor doesn't have >>the colour data it > needs to be able to create a well balanced file. > Thanks for jumping in.
I hate to do this, but in retrospect, I don't think I coherently phrased my last reply. It's not that the "sensor doesn't have the colour data it needs", it's that that whole concept is theoretically impossible. Even given the image content and the metadata related to its capture process, that's not enough, in the theoretical sense. Even adding in the metadata related to the amplifier gain control and sensor control logic, it's not enough. The only way that AWB could always produce the right result is if it knew the /exact/ details of not only the scene to be captured, but all of the physical parameters to the capture, like the absolute lighting level, the actual color temperature and chromaticity components of the light at the time of capture, etc. You're asking a two year old to interpret Kafka when you set the camera to AWB. -- Thanks, DougF (KG4LMZ) -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
