I like the reasoning in the article. I also want to mention Doug Jensen’s recommendations of generally using -3db as a best setting in Vortex Media’s DVD on the EX1 and EX3: He purports similar reasoning. As for myself, I use -3db as I often use sun-guns on my cameras while shooting surgery, and therefore am likely to get changes in foot-candles when maneuvering the jibs. I often have to use auto iris as well, because I am not able to touch the camera for long periods of time. So if I am in a situation where I am washing the scene out or there are unforgiving hot spots, I want the leverage of being able to fix it in post, and a darker picture is always desirable in that situation. You can’t fix an overexposed picture or overexposed spots. So -3db is the best setting, in my mind, for most situations, even without sun-guns, even outside of surgery. Its worked well for me and I advocate listening to Doug Jensen’s reasoning as well.
Greg Ondera
http://www.Plexus.tv
http://www.SurgeonToday.org