Larry Colen wrote:
It's kind of moot, because as long as I'm using high end cards, there's nothing much I can do to improve the transfer speed, but I have an aesthetic preference for complaining about the right thing.
My lack of skill notwithstanding, I suspect that I'm not the only one that runs up against this problem with the buffer and writing to the cards. It did occur to me that there is one solution that is pretty straightforward, and could possibly even be done with just a firmware change. Bin the pixels so that the linear resolution is cut in half.
I don't know if we would get any savings by just combining all four elements in a bayer group as one pixel, or if we'd have to take the elements from four adjacent bayer groups. The ~9MP image would be about 3680x2466 pixels, which is still plenty good resolution for most images, and there are many cases where I'd be happy 9MP files with four times the sensor area.
Unfortunately, not having access to the source code, or the performance benchmarks, I don't know where the bottleneck is, and if the added processing would cost more than we'd save by having that much less data to write out.
I seem to remember that some of the high end Nikon and Canon full frame cameras trade sensor resolution for improved frame rate and buffer depth. I just happen to think that it would be nifty if it could be done in software.
-- Larry Colen [email protected] (postbox on min4est) http://red4est.com/lrc -- 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.
