----- Original Message ----- From: "Godfrey DiGiorgi" <[EMAIL PROTECTED]>
>Yes, DR decreases as ISO increases and there's not much you can > do about it. Big thanks, Godfrey. Didn't know the above. The schooling is much appreciated! > > For this reason, the methodology I find most useful sith digital > capture, considering Zone System, is to meter for the Zone IX > highlights, not the Zone V midtones, and to consider what are the > important highlights with the sensor's dynamic range in mind. Only at > the lowest ISO settings can you cover a full 10 EV tonal range, so > you have to be ready to pick your desired highlight level and lose > the rest. For street photography, where keeping shutter speed up is > desirable to reduce subject motion, you often need to raise ISO and > live with the shorter DR. Very helpful here! > > I don't expect that the K20D will be any different in principle > although if it does have EDR capability, well, you have a bit more > range to work with. > > Most of the time with street work, however, rather than spending time > metering for every shot, I tend to put the camera in Av, pattern > matrix mode and set the EV Compensation for +.3 to +.7 stops. Yes, I do this often too. > Some photographers carry around a deep sepia > filter and use that to smash all the colors into something that > resembles a typical B&W spectral response so they can see the tonal > difference separate from the colors. I did that years ago. Now I just > wing it ... I know how different colors affect my eye and judge > accordingly. How every interesting, but it requires the purchase of a sepia filter, and I'm still suffering from purchasing fatigue, so I'll hold off on that. Thanks, Godfrey. You've provided a generously thorough primer here. Cheers, Christine -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
