If I understand you right, what you're asking is whether it is possible to "train" a sensor's dynamic range to separate the midtones better in low-contrast scenes? That's an interesting question. I would guess that the CCD/CMOS assembly is hard-wired to specific degrees of separation between tones. The interesting part is whether the camera mfg's can make a difference in signal processing. If you recall the K10D did some serious oversampling of the CCD output before turning it back to 12-bit raw files. Alledgedly, the oversampling was done to have the best possible starting point for curbing noise and retaining DR at high ISO, if I remember correctly. So why not have a preset for that stage of the in-camera processing to enable contrast enhancements? It could be a good idea if the result turned out better than doing it in the computer... :-)
Jostein 2010/12/13 Larry Colen <[email protected]>: > In general, we want to boost the dynamic range of our cameras. However, > sometimes we're shooting a very flat scene, or a lens with low contrast. If > we wanted to, for example, expand six stops of dynamic range into 12, or 14, > bits of data it seems that one way of doing this *might* be to increase the > ISO, but that would also increase the noise. > > Are there be any electronic ways of doing this that wouldn't change the > sensitivity, or increase the noise? I don't expect that there are ways for > an end user to do this, but could a camera manufacturer allow you to dial in > the dynamic range of your camera for a particular scene? > > -- > 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. > -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- 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.
