JohnKings
Stunt Coordinator
- Joined
- Dec 2, 2001
- Messages
- 174
I have a problem with blue leaking in scenes where white items/images don't seem to merge properly in black backgrounds. This is particularly noticable on men's suits with the transition between the dark suit and the white shirt. A good example of a movie where I have seen this issue frequently is Men in Black. In the transition between the main characters suit jackets and their shirts their appears at times a blue line. I have noticed this problem also exists with white text on black backgrounds. I have read that this is a focus issue. I have tried to cure this using both manual and electrostatic focus, but I can't tell when I have properly focused the blue gun. So here are my questions:
1. Is this a focus issue?
2. If so, How do you know when you have properly focused and then defocused the blue gun. Some people have suggested not to defocus, but if I do not there will be a rather nasty purple hue.
3. When defocusing, should I expect to get rid of the hue entirely? I ask this because I have only been able to remove the hue entirely by making the blue line (in convergence) way too thick.
4. I have read that you should not defocus using the lense you should defocus using electrostatic is this true?
If anyone can point me to a detailed overview of focusing the blue gun, it would be greatly appreciated.
Thanks for any information!
John
1. Is this a focus issue?
2. If so, How do you know when you have properly focused and then defocused the blue gun. Some people have suggested not to defocus, but if I do not there will be a rather nasty purple hue.
3. When defocusing, should I expect to get rid of the hue entirely? I ask this because I have only been able to remove the hue entirely by making the blue line (in convergence) way too thick.
4. I have read that you should not defocus using the lense you should defocus using electrostatic is this true?
If anyone can point me to a detailed overview of focusing the blue gun, it would be greatly appreciated.
Thanks for any information!
John