This video is intended to demonstrate, in a rough manner using Final Cut Pro, how images shot on any camera can be Graded.
It isn't always possible when you are shooting quickly, with limited resources and time to "Nail" the exposure bang on every time. Sometimes it's better to just get it in "the Can" then not at all. However there are times when you need to deliberately expose an image slightly "Hotter" then intended because the mix of Fill and Key light is not possible to balance on the day of the shoot. The problem arises when you expose for the Key light source correctly but the shadow regions are not well lit. This will result in dark regions that are largely unrecoverable in many instances. However by Over Exposing the Key light slightly, you can at least record more information into the darker regions. Off course there is a limit as to how much over exposure your highlights can withstand but generally there is a little room. The technical term for this range is called "Latitude" and refers to the exceptable range that the image can be pushed or pulled in post production.
Canon's 5DMKII is not renown for having fantastic latitude largely due to the compression format it uses. But there is some latitude all the same. As long as you understand the limitations of the 5D's latitude range then you shouldn't run into problems. In this video I have had to pull back the differences in exposure on the subject (Dave L Jones) and the background as well as adjust the colour balance. Because this sample belongs to a documentary I'm shooting, the lighting is designed to focus the viewers attention on the person talking and not the gear surrounding him. So the lighting already has a natural vignette working to highlight the subject. But this does give the impression of darkness to the rest of the image. In context with the rest of the documentary this is not a problem however when viewed on it's own, looks like a mistake. In answer to a few questions and statements made on Youtube and on eevblog.com, I thought this would be an excellent example of what is often done to deal with these types of scenarios. What's interesting to note is that it doesn't matter what gear was used to light the scene or the situation itself, but rather how one deals with this type of issue later on in post production. This video uses Final Cut Pro with it's built in colour correction tools, however eventually I intend to Grade the final images in a more exacting environment with a colourist.