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09/27/2005 12:45:52 AM · #1 |
How does the light meter work on a 20D compared to older film cameras that meter everything to a 18% grey. I ask because if I point my film camera at a white wall and shoot at the suggested exposure it will be 18% grey, however if I do the same with my 20d it correctly exposes it white. How does this newer meter work?
Thanks
GG |
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09/27/2005 01:58:09 AM · #2 |
Take it down to center-area metering mode and try again. I suspect the camera's making decisions for you in the full-screen averaging mode. I could be wrong, I haven't tested it and it's nightime AND raining here. One thing's for sure; the meter works exactly the same way, and it's calibrated to 18% gray as well. But there are so many "smart metering" modes, I got no handle on them all. I use center-area metering and full manual control most of the time. When I'm being serious anyway.
Robt.
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09/27/2005 02:15:17 AM · #3 |
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09/27/2005 02:15:29 AM · #4 |
This is one of those how long is a bit of string questions....
What lens were you using, and were you using the flash?
If you're not using flash the wall should be 18% grey (bang in the middle of the histogram) all other things being equal. I just tried it with my 20 and with evaluative metering and a while wall I get that..
If you're using flash the while wall should be closer to white than without flash, if the lens you've got sends distance info to the camera, as ETTL-II goes clever stuff in evaluative mode. (Cfn 14 set to evaluative that is)
Cheers Me.
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09/27/2005 02:19:40 AM · #5 |
Originally posted by KiwiChris:
If you're not using flash the wall should be 18% grey (bang in the middle of the histogram) all other things being equal. I just tried it with my 20 and with evaluative metering and a while wall I get that..
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That's what I suspected should be the case, but I haven't tested it...
R.
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