May be you can talk to the stage manager, @ ISO3200 F2.8 1/60s is just too
dark for enjoying the performance! The Chinese Opera I just shot was having
a minimum light level of ISO400 F4 1/60s, four stops brighter than yours.
For the difference in RGB channels, did you set the WB to 2800-3200K? Some
lower power stage light may be just too warm. Finally, if everything just
didn't work out, send me your 5D and purchase a 5D Mark II, which should
give you extra one or two stops to work with ;-)
C.H.Ling
----- Original Message -----
From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
> Yes, you and CH and Marc are absolutely correct. Putting it in terms of
> flash lighting the subject and the exposure being the same from
> different distances snapped all into clarity. I don't know what I was
> thinking. Maybe I was looking too hard for an answer to a problem which
> was something I could control (my distance to the subject rather than
> the intensity of the light source). It was just an unfortunate
> circumstance that the subject-camera distance math worked out to support
> my twisted logic.
>
> Now I just did what I should have done in the first place. I put a
> bunch of thumbnails from both events on the screen side-by-side in a
> browser. It's perfectly clear scrolling through those thumbnails
> side-by-side that, just as CH said, the overall illumination level of
> the 2008 event is considerably less than the 2007 event. And it's not
> simple underexposure. Most frames in the 2008 event have many parts of
> the image overexposed in the red channel while the green and blue
> channels are about two stops below the red.
>
> The real conclusion is what I didn't want to hear. My 5D at ISO 3200
> and with an f/2.8 lens are not necessarily adequate to the annual task.
> Two stops will be a big hurdle to overcome.
>
> Thanks all,
> Chuck Norcutt
>
--
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