Lior Molcho
December 23rd, 2008, 06:37 PM
Hi Jason
reading a previous reply of your's to a post in this forum, an offshoot question pops to mind:
you said:
"BTW, the "magenta highlights" issue is because the actual RAW data, the green channel has clipped before the red and blue channels, so there is still color information in those other two chanels, but green on the other-hand has hit the full 1.0-white-point. This typically happens most often with daylight balanced scenes, since the green-channel is the most senstitive channel on the camera, and daylight actually has quite a bit of green-light in it (much more so than tungsten)."
so does that mean that when shooting outdoor chroma key, we would be better off using blue screen instead of green screen when shooting with the SI?since "daylight actually has quite a bit of green-light in it" and will be "contaminating" the foreground subject, making the seperation/keying harder?
Thanks
Lior
reading a previous reply of your's to a post in this forum, an offshoot question pops to mind:
you said:
"BTW, the "magenta highlights" issue is because the actual RAW data, the green channel has clipped before the red and blue channels, so there is still color information in those other two chanels, but green on the other-hand has hit the full 1.0-white-point. This typically happens most often with daylight balanced scenes, since the green-channel is the most senstitive channel on the camera, and daylight actually has quite a bit of green-light in it (much more so than tungsten)."
so does that mean that when shooting outdoor chroma key, we would be better off using blue screen instead of green screen when shooting with the SI?since "daylight actually has quite a bit of green-light in it" and will be "contaminating" the foreground subject, making the seperation/keying harder?
Thanks
Lior