Hi everyone,
I tried the RAW mode as well a year ago, but found that it posterizes too much because the 8 bits depth of each frame over the USB causes information loss compared to the 10 bits information that flows between the A/D converter and the in-camera image processor. By contrast enhancing the images before the 8 bits YUV 4:2:0 conversion and USB 1.1 data compression the low contrast information is preserved, resulting in less posterising when performing image processing on the PC.
Keep in mind that this RAW concept was invented to prevent data compression over the USB 1.1 bus, the reality however is that the 10 to 8 bits conversion without contrast stretching is far worse then the USB data compression loss, even at 10 fps.
Even with the optimised mode without the RAW mode you need in-camera processing because of the reasons mentioned above, of course you can fiddle with things like colour balance etc. as long as you apply enough contrast enhancement to prevent posterising when processing the images on the PC.
With the Vesta Pro I found the facory settings still better than the
the 'Bond' settings I tried a year ago:
(see attachment)
or
http://members.dodo.net.au/~erwinvan...er040325br.htm
Maybe the current 'Bond' settings have been improved in the meantime, I might give it another go one day.
RAW makes more sense when the webcam is equipped with a B/W chip, but then it still needs in-camera contrast enhancing.
Cheers,