Video - dark edges
Posted 04 May 2005 - 11:05 AM
When you have highly exposed or over exposed areas along a sharply focused edge which is in front of a less exposed background, the sharp edge often appears to have a dark rim to it. The greater the difference in exposure, the stronger the effect. It's peculiar to video and seems to happen on all kinds of cameras from DV to digibeta SD to HD.
Here's two jpeg attachments - close ups of stills from an HD shoot demonstrating the effect.
I've never seen the effct on telecined 35mm footage which suggests it's either to do with lenses or that the grain structure of the film minimizes the effect when telecined.
If you have suggestions about how you can reduce this effect, please let me know.
Posted 04 May 2005 - 12:08 PM
Turn off the edge enhancement/sharpening/aperture correction/whatever.
Edited by Phil Rhodes, 04 May 2005 - 12:08 PM.
Posted 04 May 2005 - 12:30 PM
Posted 05 May 2005 - 05:55 AM
Posted 05 May 2005 - 01:16 PM
I have seen this with telecine, but to a much lower extent. I always ask for the noise reducer and all sharpening to be turned OFF at the start of the transfer, I prefer to see what my film stock and lens choice have produced.
Stephen Williams DP