fixing flourescents in fcp3 at DVinfo.net

Go Back   DV Info Net > Apple / Mac Post Production Solutions > Final Cut Suite

Final Cut Suite
Discussing the editing of all formats with FCS, FCP, FCE


Reply
 
Thread Tools Search this Thread
Old August 26th, 2003, 12:45 PM   #1
New Boot
 
Join Date: May 2003
Location: Los Angeles, CA
Posts: 6
fixing flourescents in fcp3

So I shot some stuff in a small room with flourescent lights. I thought I brought the shutter speed down to 60, which I figured would get rid of that shift effect, when the white balance seems to move from normal to slightly yellow/green, then back again. But it didn't help, and the footage looks pretty funky, with the colors shifting slightly every few seconds. I'm definitely going to go back and attempt to reshoot, but is there anything I can do to allieviate the problem in fcp3? Any thoughts would be appreciated.

Thanks
Benji Wu is offline   Reply With Quote
Old August 26th, 2003, 06:46 PM   #2
Warden
 
Join Date: Mar 2002
Location: Clearwater, FL
Posts: 8,267
The changing phase makes it difficult to get the video real professional looking. If you can't reshoot, you can adjust the WB with the 3 way color corrector in FCP 3 and 4. If you have problems getting it to work post back. It was also covered here a few months ago and you can find it by doing a search.
__________________
Jeff Donald
Carpe Diem




Search DVinfo.net for quick answers | Where to Buy? From the best in the business: DVinfo.net sponsors
Jeff Donald is offline   Reply With Quote
Old August 26th, 2003, 09:24 PM   #3
New Boot
 
Join Date: May 2003
Location: Los Angeles, CA
Posts: 6
Thanks Jeff. I'll give it a try.
Benji Wu is offline   Reply With Quote
Old August 27th, 2003, 10:27 AM   #4
Major Player
 
Join Date: Apr 2003
Location: Chico, California
Posts: 357
I wonder if some of the funkiness was auto white balance? If you reshoot, remember to manually white balance for the room. That should at least lock the white balance and make it easier to fix in post if need be.
__________________
Jeff Price
Flickerflix Nature Videos
flickerflix@yahoo.com
Jeff Price is offline   Reply With Quote
Old August 28th, 2003, 10:41 AM   #5
Major Player
 
Join Date: May 2003
Location: Phoenix, AZ
Posts: 327
Digital Film Tools - 55mm plug-in

Yeah, if the problem was due to auto WB, and is shifting every few seconds, that's going to be pretty much impossible to correct for fully. The AWB will shift according to the content of the scene, so a handheld or panning shot will have irregular shifts due to the operator's movements. Really tough to track and compensate for.

But I thought this would be a good time to bring up a FCP plugin set.

There's a huge, comprehensive review in the 09/03 American Cinematographer of digital film tools' 55mm v2.0. It's available as an AfterEffects or FCP plugin set for $195. It appears to be a really cool, all-around toolkit for digital fimaking. One of the features discussed is correcting for flourescent lighting.

www.digitalfilmtools.com/html/55mm_prod.html

The product has been out for awhile, but this is the most comprehensive review I've seen yet. AC's Jay Holben goes filter by filter, suggesting practical and film-type uses for each.

Strangely, he talks about using the "temperature" filter instead of the "flourescent" filter for correction, but the digitalfilmtools site lists that filter as a bonus filter for the Photoshop version only. I'll try to reach them later today to clarify.
Scott Anderson is offline   Reply With Quote
Old August 28th, 2003, 11:05 AM   #6
Major Player
 
Join Date: Sep 2002
Location: Belgium
Posts: 804
I don't think it's a good advise to keep the WB in manual mode when the WB problem is generated by the periodic phase differences between the framrate and the mains power. Auto WB will try to compensate the variations. Unfortunately the compensation time constant is (mostly) too long, so it lags..
Andre De Clercq is offline   Reply With Quote
Old August 28th, 2003, 11:16 AM   #7
New Boot
 
Join Date: May 2003
Location: Los Angeles, CA
Posts: 6
I manually adjusted the white balance with a white card in the room, so it wasn't an awb issue. Like Andre said, it was a phase issue. it seems like a catch 22 shooting situation: if i continually bring down the shutter speed to get rid of the phase shift, the movements of the person being interviewed look stuttered and slow mo-ish. But if I don't bring it down, I'll be stuck with the lighting shift from the changing phase. I guess just avoid heavy flourescents whenever possible when shooting in available light, huh?
Benji Wu 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 > Apple / Mac Post Production Solutions > Final Cut Suite

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 09:52 PM.


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