== Link: A demonstration of an issue with ETTR

This link requires a bit of explanation (if only so that I can
remember it later). The person I'm linking to took a standard
colour checker test target and took a properly exposed shot then
a series at increasing positive exposure compensations (ie,
exposing to the right), postprocessed all of the overexposed photos
to correctly expose them again, and then cropped strips of the
colour targets and stacked the same strips from each exposure.
The goal is to clearly see any colour shifts caused by [[ETTR
http://www.luminous-landscape.com/tutorials/expose-right.shtml]].

(As he notes, some are deliberately overexposed, going beyond what
you should theoretically do with ETTR. Of course they do represent
what happens if you accidentally overexpose in the course of trying
to do ETTR.)

Part of what I like about this is that it's an experiment that anyone
can do (if you have a colour checker test target). Your camera and
processing system may well give you different results than his, but
either way you'll have learned something interesting.

So: [[Experiment: ETTR hue shifts
http://forums.dpreview.com/forums/read.asp?forum=1042&message=39723566]]
and now the revised [[Experiment: ETTR hue shifts (reformatted)
http://forums.dpreview.com/forums/read.asp?forum=1042&message=39725526]].

PS: obviously you should do this test with the camera on a tripod
and locked at a single ISO, unless you also want to test the effects
of ISO on colour shifts. Although that too may be a useful test,
depending on how you're thinking of using ETTR.