I think that the Pentax calibration is meant to avoid clipping
highlights, whether it be in jpeg or RAW. In situations where there are
very bright highlights it can result in underexposure. I add a half
stop of exposure comp when the seen includes a bright highlight that's
not part of the intended subject. With extreme background highlights, I
sometimes add more. Although I find I still want to control those
highlights as much as possible. It's easy to bring up the brightness of
the midtones if necessary.
Paul
On Oct 29, 2005, at 4:47 PM, Godfrey DiGiorgi wrote:
On Oct 29, 2005, at 10:56 AM, David Savage wrote:
Yeah it does work on the D. I find I generally have anywhere between
+1/2 to +1 stop of compensation always dialed in.
It seems to me that Pentax has calibrated the exposure meter in these
cameras for the JPEG rendering in camera and does not make any
adjustment when the camera is switched to RAW format capture. That
would explain the need for adding in more exposure for best results.
In average lighting, however, the meter calibration seems accurate
enough and I don't need the added exposure.
Godfrey
