The palm of your hand is also reasonably close to 18% as well. On Thu, Feb 10, 2011 at 10:31 AM, John Sessoms <[email protected]> wrote: > From: Walter Gilbert >> >> Thanks, David/Collin/Paul. >> >> I think I understand, now. >> >> I was thinking that since the snow was so glaringly bright that it would >> throw the meter off irrespective of the actual subject -- assuming the >> subject isn't the snow itself. >> >> But, as I understand you all now, as long as there's a dark enough >> counterpoint to the snow within the frame, the metering will average >> out. My question in that case is, does the ratio of dark to light >> matter? Say, if you have a snowy field and a small black dog in that >> field, taking a photo of a distant grey object, is that enough to get >> the correct averaging? Or do I need to compensate for the dominance of >> the snowy field within the frame? >> >> In other words, does the meter average the difference between the >> darkest and the brightest objects in the frame, or the total amount of >> darkness and brightness in the frame? >> >> Thanks again, y'all. I do appreciate your patience. > > If I remember correctly, you started this thread that you're shooting with a > K1000? > > The K1000 meter averages the entire frame. No additional weight is given to > the center. > > If the scene is mostly brighter than 18% gray, the meter recommendation will > be under-exposed, you have to "over-expose" to compensate and get the > correct exposure. > > If the scene is mostly darker, the meter recommendation is over-exposed, and > you have to "under-expose" to compensate. > > Blue skies opposite the sun, sunlit grass and weathered asphalt paving are > all reasonable approximations of 18% gray. If nothing else, fill the > viewfinder with one of these and set your exposure, then re-frame the scene. > > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 10.0.1204 / Virus Database: 1435/3433 - Release Date: 02/09/11 > > > -- > 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. >
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