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My D80 & D90 gallery has moved
Just finished checking out your site and it was a real treat. Also read the
"experiments" on metering and noise properties of the D80 and D90 with interest. I'd like to pass along a few thoughts you might be interested in. I got my first adjustable camera, an old folding Kodak, in the late 1940s. I had never heard of an exposure meter, but each roll of film contained a data sheet with a chart of exposures for various lighting conditions. I followed the charts and got good pictures. When I got my first job in 1950 (minimum wage at 65 cents an hour) I bought a used Argus 35mm camera and my first roll of Kodachrome (ASA 10). Somewhere along the line Kodak had put out a cardboard dial-type exposure guide which became my "Bible". Using this guide, which was literally the "sunny 16" rule, I shot hundreds of slides with very few bad expoosures. Several years later after I had acquired a real exposure meter it was obvious that it was still basicly indicating the sunny 16 exposure rule. Now jump ahead to today and your findings concerning the sunny 16 rule as it applies to the D80 and D90. My current camera is a D90 - my fifth digital camera. In all these cameras I've noticed essentially what you showed in your experiments - that it's closer to the "sunny 11" rule. I think the answer is what several instruction manuals and other writings have said, that the ISO sensitivity of the digital camera is "approximately" the same as ISO (or ASA) film speed. One other thing I find interesting. It seems to require a certain amount of skill and interpretation to get a correctly metered exposure with the DSLR cameras. My last camera before the D90 was a CoolPix 8800 and before that a CP 5700. I used matrix metering exclusively on both these cameras and got what I'd call correct exposures better than 90% of the time. One would think the metering on the Ds would be better, not worse, than a P & S! For what it's worth, in looking at your noise comparison page I noticed the D90 exposures appear to be consistently about 1/3 EV lighter than the D80. If I'm seeing correctly that might have a bearing on the metering comparison tests. Just wondering. At any rate, keep up the good work. After reading your results I feel the need to go out and play with my D90 some more. I'm not totally happy with what I'm getting. "eNo" wrote in message ... New URL is http://esfotoclix.com. Come check it out. |
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