The concept of Log seems needlessly confusing from (still) digital image processing perspective, which I have some experience.
Firstly the name is called "Log" (for logarithmic) but isn't that what gamma does in color spaces like sRGB since forever? "Normal" video standards like BT.709 also have non-linear transfer functions. I don't get why "log" is stressed here. Maybe it just means a different/higher gamma coefficient (the author didn't talk much about the "log" part in the article).
And the main feature of it, at least according to this article, is that it clips the black and white level less, so leaves more headrooms for post-processing.
This is definitely very useful (and is the norm if you want to do something like, say, high quality scanning), but I failed to see how it warrants a new "format". You should be able to do that with any existing video format (given you have enough bit depth, of course).
Firstly the name is called "Log" (for logarithmic) but isn't that what gamma does in color spaces like sRGB since forever? "Normal" video standards like BT.709 also have non-linear transfer functions. I don't get why "log" is stressed here. Maybe it just means a different/higher gamma coefficient (the author didn't talk much about the "log" part in the article).
And the main feature of it, at least according to this article, is that it clips the black and white level less, so leaves more headrooms for post-processing.
This is definitely very useful (and is the norm if you want to do something like, say, high quality scanning), but I failed to see how it warrants a new "format". You should be able to do that with any existing video format (given you have enough bit depth, of course).