« on: July 30, 2012, 11:25:14 PM »
I don't think the 1D X is underexposing. I think that the 5D3 is programmed to slightly overexpose in order to force everyone to use the ETTR technique to "boost" the perceived image quality.
Exactly like other have reported, my 1D X meters about 1/2 stop faster (shorter exposure time) than my 5D3. However, the result is a histogram that is dead center. For instance, take a photo of a low-contrast subject like a frame filled with green grass. You should get a peak smack dab in the middle of the screen when looking at the histogram.
I agree totally - I was under the impression that my 1DX was underexposing every shot I took by about half a stop but in fact it was perfectly exposing to the nth degree - not aesthetically pleasing but there are no blown highlights anywhere.
Got ya. I saw this this evening while shooting a church with whites blown out by the evening sun (very harsh). 5D3 and 1D4 had a bit of purple fringing along white edges, 1DX did not. Also on a landscape shot it did the same thing. The 5D3 and 1D4 blew out the highlight, but the 1DX didn't and the distant house looked much sharper.