Colorshift at DVinfo.net

Go Back   DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon Cinema EOS Camera Systems

Canon Cinema EOS Camera Systems
For all Canon Cinema EOS models: C700 / C300 Mk. II / C200 / C100 Mk II and EF / PL lenses.


Reply
 
Thread Tools Search this Thread
Old January 8th, 2014, 08:55 PM   #1
Regular Crew
 
Join Date: Jun 2013
Location: Santa Cruz, California
Posts: 33
Colorshift

I'm working on a trailer for a independent feature I shot. Camera C100 with Ninja, editing on Premier Pro. Shot CP9

Problem, when editing together a sequence I am experiencing color shifts on some of the clips. I started out using Auto Color, experienced the shifts, then deleted that and went to Fast Color Correction but the shifts were still there. I could not get a steady color on some of the clips.


Suggestions?

Thanks

Bill
Bill Scherer is offline   Reply With Quote
Old January 9th, 2014, 01:55 AM   #2
Regular Crew
 
Join Date: Apr 2010
Location: UK
Posts: 145
Re: Colorshift

Ouch.

I'm not familiar enough with PP, but have you checked the original clips without any colour correction? ie, it's not an "auto white balance" issue?

Ben.
Ben Giles is offline   Reply With Quote
Old January 9th, 2014, 12:46 PM   #3
Regular Crew
 
Join Date: Jun 2013
Location: Santa Cruz, California
Posts: 33
Re: Colorshift

No, always shoot manual. I'm now thinking that camera operator might have shifted his body and changed the light.
Bill Scherer is offline   Reply With Quote
Old January 9th, 2014, 03:16 PM   #4
Inner Circle
 
Join Date: Sep 2003
Location: Portland, Oregon
Posts: 3,259
Re: Colorshift

Still, though, you need to definitively determine whether these color shifts exist in the original clips, which should be straightforward.

If they do, why? Changes in WB, changes in lighting, malfunction of the camera or Ninja? Not many other possibilities.

If they do, did you record both on the C100 and the Ninja? Shifts on both? If shifting on the Ninja but not the native footage, how bad would it be to use the C100 native files? What are the economics of reshooting vs. fixing in post? Whether money or time or both. For a short, keyframing color correction is at least possible, if unpleasant.

If these color shifts do not exist in the original clips there is a problem to be discovered in the edit/CC workflow. Find it, fix it, done!

I've only posted questions, not answers... sorry! The biggest question is "how good is good enough?" Keyframing CC is bound to leave rough edges. Heavy CC on C100 native clips may show rough edges, depending.
__________________
30 years of pro media production. Vegas user since 1.0. Webcaster since 1997. Freelancer since 2000. College instructor since 2001.
Seth Bloombaum is offline   Reply With Quote
Old January 10th, 2014, 06:19 PM   #5
Trustee
 
Join Date: May 2010
Location: England liverpool
Posts: 1,310
Re: Colorshift

That looks to me to be a light shift! I have had it a couple times where a person has moved or similar around the area and then the light changes slightly! Because it is a facial scene and a dialogue it shows up more and the way the light is shining on the face a interruption of light from somewhere
Steve Bleasdale is offline   Reply With Quote
Old January 11th, 2014, 07:17 PM   #6
Regular Crew
 
Join Date: Jun 2013
Location: Santa Cruz, California
Posts: 33
Re: Colorshift

Yes you could be right. I was also experimenting with film convert. I'll test everything again right out of the camera… but then in CP9 there isn't much color to look at.
Bill Scherer is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon Cinema EOS Camera Systems

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 04:08 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network