Lightning help ! My movies seems yellowsh ... at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > Open DV Discussion

Open DV Discussion
For topics which don't fit into any of the other categories.


Reply
 
Thread Tools Search this Thread
Old January 13th, 2008, 02:44 PM   #1
New Boot
 
Join Date: Oct 2007
Location: Sao Paulo, Brazil
Posts: 22
Lightning help ! My movies seems yellowsh ...

We just bought a new light equip:
http://www.atek.com.br/imagens/produ...igilight_m.jpg
4 x 55W (220W)
We are using 2 of these on 45, 1 pointed from top to bottom and another on middle position.

Our movies are looking yellow, what we should do to avoid this? We did proper WB and original profile setup on the camera (SONY-FX1).

SAMPLE MOVIE

Do we need get more lights? I was thinking about two of these:
http://www.atek.com.br/imagens/produ...al_light_m.jpg
(4 x 45W - (180Watts)) at the bottom to avoid shadows and another (220W) on center.

Any other lightning recommendations?

Thanks,
Henrique Meneghelli is offline   Reply With Quote
Old January 13th, 2008, 05:09 PM   #2
Trustee
 
Join Date: Nov 2005
Location: Sauk Rapids, MN, USA
Posts: 1,675
White balance could correct the problem. Just add a 3 way color corrector filter to the clip and use the eye dropper to set the white balance. You can also use the color wheels to push the color away from yellow (toward blue) to get rid of the yellowish cast.

Ideally, you'd want to set your white balance in the camera on the set by zooming and focussing on a piece of white paper in the same light your subjects will be situated. <edit>Since you're already white balancing, you could white to a slightly yellow card (which will push the camera toward blue a bit) or just gel the lights blue after you WB</edit>

warning for the public: this is an innocuous (unthreatening and safe for workish - other than the watermark in the corner) clip from an adult film.
__________________
Web Youtube Facebook

Last edited by Cole McDonald; January 13th, 2008 at 05:16 PM. Reason: just re-read original post
Cole McDonald is offline   Reply With Quote
Old January 13th, 2008, 05:14 PM   #3
Trustee
 
Join Date: Nov 2005
Location: Sauk Rapids, MN, USA
Posts: 1,675
Those are some pretty nice prices on those lights too :)
__________________
Web Youtube Facebook
Cole McDonald is offline   Reply With Quote
Old January 14th, 2008, 03:36 PM   #4
New Boot
 
Join Date: Oct 2007
Location: Sao Paulo, Brazil
Posts: 22
Quote:
Originally Posted by Cole McDonald View Post
White balance could correct the problem. Just add a 3 way color corrector filter to the clip and use the eye dropper to set the white balance. You can also use the color wheels to push the color away from yellow (toward blue) to get rid of the yellowish cast.

Ideally, you'd want to set your white balance in the camera on the set by zooming and focussing on a piece of white paper in the same light your subjects will be situated. <edit>Since you're already white balancing, you could white to a slightly yellow card (which will push the camera toward blue a bit) or just gel the lights blue after you WB</edit>

warning for the public: this is an innocuous (unthreatening and safe for workish - other than the watermark in the corner) clip from an adult film.
Thanks for the tip, dont worked very well but I can see some improvment. I was thinking about some correctiong on the production, will try some gels maybe, on such lightining will be hard to do it but will try.

Im affraid about doing many corrections on editing software cause some of these adjustments dont work well on the playback.
Henrique Meneghelli is offline   Reply With Quote
Old January 14th, 2008, 09:05 PM   #5
Trustee
 
Join Date: Nov 2005
Location: Sauk Rapids, MN, USA
Posts: 1,675
you could also add a blue filter to the lens after white balancing...that would let you forgo adding all that gel to every light.
__________________
Web Youtube Facebook
Cole McDonald is offline   Reply With Quote
Old January 15th, 2008, 01:12 AM   #6
Trustee
 
Join Date: Feb 2004
Location: Brookline, MA
Posts: 1,447
Thanks for the laugh!

Anyway, to answer your question: If doing everything Cole says did not help, your lights may not be truly white. Check their CRI. It should be over 90.
Emre Safak 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 > The Tools of DV and HD Production > Open DV Discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 04:20 PM.


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