stevedocmaker
Well-known member
It looks to my eye as though you're not really getting any DR boost from C-log. It appears as though it's just lifting the black level up, and everything else along with it. If true, I suppose this may help bring more detail into the shadows after the grade, but won't help in high DR scenes. Is this correct?
G
Guest
Guest
After doing some tests against the Canon 5D Mark ii, I would agree with you. I don't have time right now to test the other Profiles, but the Canon-Log is great in Shadow, not so great in Highlights. The Canon 5D did much better in highlights, using the Technicolor Profile for the 5D.
Atleast with the 7d, the Technicolor also just raised the black levels. Instead of being at 0, they were raised to 16. I feel that's a disadvantage. Instead of having 0-255 levels, there are now atleast 16 less...
cpc
Well-known member
Cinestyle has a weird slope in the highlights, especially the last 2/3 stop or so - they are actually more detailed than the mids, probably due to the effort to mimic the gamma slope in the mids of film/other log curves. See the chart down here in the flat curves article. If you trust Canon's own charts, their log curve should have a bit more highlights reach than the standard curve. It has the same DR as the WideDR gamma. WideDR distributes the DR differently and compresses the highlights more though.