On Apr 11, 2011, at 2:59 AM, Peter Loveday wrote: > Ah sorry for adding to the confusion then, I misunderstood. > > Interestingly, older sensors quite often used CYM sensor sites rather than > RGB. There was a shift toward "primary" colour sensor arrays however, > generally because they were considered to give more accurate representations > of colours. > > It is an interesting question, however. There are certainly some cases where > I'd trade off colour accuracy for high ISO capability; though with cameras > like the K5 this is becoming less of a requirement. > > In an ideal world, I'd like to be able to change the bayer array > electronically, even remove it for B&W. But I can't see that happening.
Considering the precision need to line the bayer array up with the sensor, I can't see any way of changing it. I have wondered whether it would be possible to shift the sensor by one sensel and in four rapid exposures get a reading for every position with each element of the bayer array. I would love to see what a B&W version of the K-5, without a bayer array could do in low light. You'd get 3 times the sensitivity, but you'd also get twice the linear resolution. Without having to split each pixel among three sensels, that would mean you could get by with much weaker anti-aliasing filters, so you'd basically get a B&W camera that was twice as fast, and twice as sharp. However, I think Nikon found out that there wasn't enough of a market for such a beast to make it economically feasible. > -- Larry Colen [email protected] sent from i4est -- 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.
