osculating color temperature

[Steve Eisen]

It is definitely the camera. That is why you MUST always manually set your white balance on any camera that is capable to do so.

Steve Eisen
Eisen Video Productions
Board of Directors
Chicago Final Cut Pro Users Group

[Tom Brooks]

It is probably an interaction between the camera’s setting and the lighting at the time of the recording. If the camera was set to auto white balance, it may be reading different color temperatures of light in the scene and attempting to adjust to that. If the camera “sees” blue it will adjust toward yellow and vice versa.

Can you describe it in a little more detail? What is the frequency of the oscillation? When it goes yellow is there a big blue object in the scene or a source of bluish light?

You might be able to partially correct it by using the Color Corrector filter and keyframing the adjustments.

[David Roth weiss]

[Tom Brooks] “What is the frequency of the oscillation?”

Tom,

I too was looking at the word “osculating” in wonder, so I looked it up. While Edward perhaps did mean “oscillating,” osculating actually is a word. Below is the definition from Wikipedia.

“In differential geometry of curves, the “osculating” circle of a plane curve at a given point on the curve is the circle whose center lies on the inner normal line and whose curvature is the same as that of the given curve at that point.”

If Edward really did intend to use “osculating,” he will probably need to ask the MIT FCPUG for help in the future, as he’s clearly at a level that’s way over our heads.

David

David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles

POST-PRODUCTION WITHOUT THE USUAL INSANITY ™

A forum host of Creative COW’s Business & Marketing, and Indie Film & Documentary forums.

[Tom Brooks]

David, you caught me in an assumption. Thanks for bring me back down to earth!

[Edward Howard]

Hi there,

Sorry took a while to reply back to you all.

Thanks for the replies and yes I did mean oscillating my apologies.

I think it could be the audio white balance on the camera because the issue is consistent between interviewees and locations.

I’m going to try making up a filter that moves between the two colour balances though I really wish I didn’t have to! I’m also going to make sure that the cameraman turns off the auto white balance in future.

If anyone knows a plugin filter that would do the job for me it would really help.

Many thanks,

Ed

[David Roth weiss]

Its a pretty tough correction to make Ed because it typically requires keyframing as the color shifts from one setting, to a mixture, then to the other setting.

David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los Angeles

POST-PRODUCTION WITHOUT THE USUAL INSANITY ™

A forum host of Creative COW’s Business & Marketing, and Indie Film & Documentary forums.

[Edward Howard]

Very very true, I’m going to give it a go anyway but this project is on a tight deadline so it might just have to stay how it is.

Thanks for your help.

Ed

[Steven Hacker]

I just had this issue happen to me with my PD170. I always use manual white balance and this ocurred in manual- a constant switching from daylight to tungsten to manual to etc.
Steve