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D800 metering system quirks

geneluck

Reading, UK
3177 posts

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geneluck Silver Member Nikonian since 16th Oct 2004
Mon 04-Mar-13 06:53 PM | edited Mon 04-Mar-13 07:00 PM by geneluck

I continued to test my D800 today and tried with some testing condition of bright light and shadow. To my great surprise,one of the pictures looked really overexposed. I fired a second shot just to confirm:exactly same result. I then set the exposure compensation to a whole -1 stop and that seems to be at the limit before blowing highlights. I then reset the exposure compensation to 0 , moved a bit bakcwards and shot again: this time the exposure looked good to me.
So what could have caused the D800 to overexpose the first 2 pictures?
the camera setting was the same for all 4 pictures :

taken with 70-200 VRII at 70mm f4 ISO 100 in Aperture mode matrix metering so
for all 4 , the camera determined the shutter speed:

#1 and #2 (overexposed) where shot at 1/160s
#3 (exposure compensation set to -1) was shot at 1/320s (which you would expect)
#4 (taken from a bit further back)was shot at 1/800s


All pictures where shot in jpeg, and simply resized in CS6
Jean-luc






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Attachment#1 (jpg file)
Attachment#2 (jpg file)
Attachment#3 (jpg file)
Attachment#4 (jpg file)

Jean-luc

Visit my travel website at http://www.jlpepin.com

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