PMW-350 flash colours at DVinfo.net

Gabor Heeres · August 21st, 2012, 05:11 AM

Hi all,

Weird topic-title but OK. I'm currently having an issue with blue flashes and my PMW-350 (with standard lens). Check the overheated colours of the blue flashes of the fire trucks in e.g. this videoitem:

My EX1R gives me overall more saturated colours but doesn't have this issue. The colours the PMW-350 produces with this picture profile created by Alister are OK and look quite natural. But those flashes keep annoying me. Is this a picture profile issue and if so, which value should I change? Any help is appreciated. Thanks.

Gabor

Alister Chapman · August 24th, 2012, 09:38 AM

The only thing I would suggest is to reduce your overall saturation level a bit. It looks like the piece was shot in the evening, so it's not really all that surprising to see the blue flashing lights illuminating things blue.

Dave Morrison · August 24th, 2012, 08:49 PM

I've been seeing this in other forums. There's something about blue LED's that is very non-linear.

Tom Roper · August 26th, 2012, 09:10 AM

The direct light coming from the red brake lights and the blue strobes appear equally strong even though the blue strobe device has much higher intensity. This is because the direct blue light is overexposed. The reflections of light are not overexposed however, so the reflected blue appears much stronger on the faces. Those are the only two colors of direct light of any notable prominence. If somehow the reflected intensity of the blue was reduced to appear more balanced when compared to the reflected intensity of the lower powered red, that would not properly represent the scene.

August 21st, 2012, 05:11 AM	#1
Gabor Heeres Major Player Join Date: Jan 2009 Location: Eindhoven, The Netherlands Posts: 322	PMW-350 flash colours Hi all, Weird topic-title but OK. I'm currently having an issue with blue flashes and my PMW-350 (with standard lens). Check the overheated colours of the blue flashes of the fire trucks in e.g. this videoitem: Grote brand bij recyclingbedrijf on Vimeo My EX1R gives me overall more saturated colours but doesn't have this issue. The colours the PMW-350 produces with this picture profile created by Alister are OK and look quite natural. But those flashes keep annoying me. Is this a picture profile issue and if so, which value should I change? Any help is appreciated. Thanks. Gabor

August 24th, 2012, 09:38 AM	#2
Alister Chapman Inner Circle Join Date: Dec 2005 Location: Bracknell, Berkshire, UK Posts: 4,957	Re: PMW-350 flash colours The only thing I would suggest is to reduce your overall saturation level a bit. It looks like the piece was shot in the evening, so it's not really all that surprising to see the blue flashing lights illuminating things blue. __________________ Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com

August 24th, 2012, 08:49 PM	#3
Dave Morrison Major Player Join Date: May 2002 Location: West Central Florida Posts: 762	Re: PMW-350 flash colours I've been seeing this in other forums. There's something about blue LED's that is very non-linear. __________________ EX1, Nikon D750 http://www.morrisonphotographics.com http://www.heritagefilm.com

August 26th, 2012, 09:10 AM	#4
Tom Roper Trustee Join Date: Jun 2004 Location: Denver, Colorado Posts: 1,891	Re: PMW-350 flash colours The direct light coming from the red brake lights and the blue strobes appear equally strong even though the blue strobe device has much higher intensity. This is because the direct blue light is overexposed. The reflections of light are not overexposed however, so the reflected blue appears much stronger on the faces. Those are the only two colors of direct light of any notable prominence. If somehow the reflected intensity of the blue was reduced to appear more balanced when compared to the reflected intensity of the lower powered red, that would not properly represent the scene.