That is because, almost universally, the so called luminosity
histogram is just based on the green channel, not a composite. Nice
to see the RGB histogram introduced on the FujiFilm S2 Pro get
adopted by the pro cameras and finally drift down to us.
Winsor
Long Beach, California, USA
On Sep 4, 2006, at 6:05 PM, Chuck Norcutt wrote:
> In all this discussion of incident metering I guess I should probably
> have pointed out that 90 of my incident metering is flash
> metering. If
> it's not measuring the main light it's measuring the flash as fill in
> daylight. But even so I still check the histogram. The 5D is very
> nice
> in that respect since it gives you histograms for each color
> channel and
> not simply total luminosity. The Minolta A1 can look pretty good in
> total luminosity while at the same time blowing the highlights on the
> red channel.
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