C100 Mk2 White balance test (this camera needs warming up) at DVinfo.net

Ben Johnston · September 10th, 2017, 10:17 AM

Possibly of interest...

I've noticed my C100mk2 wants to pull towards blue/magenta. Here's a white balance test that seems to confirm it. White balance settings in the bottom right, then the correction applied by Resolve in the bottom left (using the white balance picker on the top right square, *correction bypassed in the images*). Image linked to below.

AWB is very blue, with a magenta tint.

Applying the same temperature in custom WB gets closer and, weirdly, is more accurate along green/magenta (AWB should get this closer).

The daylight preset (5500K) is much more accurate.

Finally, a grey card reading gets closest, just a touch too warm/green. When I tried this test for the first time, the grey card reading was almost perfect, perhaps because I filled more of the frame with the grey card.

Camera was ABB-ed. Conclusion - assuming Resolve is accurate, beware of AWB with it's blue/magenta tendencies. Other picture profiles might do better. C-log certainly seems warmer, with less pull towards magenta, but I haven't tested it.

PS. Can anyone manage to upload images on this forum....?

https://www.dropbox.com/s/dlaa43obef...-test.jpg?dl=0

Ben Moore · September 12th, 2017, 09:05 AM

I have noticed that as well. I'm surprised its so much different than the MK 1. Matching the 2 is tricky

Dan Brockett · September 20th, 2017, 09:53 AM

You are aware that you can program in RGB offsets easily in your picture profiles, right? While it make take some experimentation, the C100 and C100 MKII can be color matched and I agree with your assessment, the C100 MKI veers much more toward red with a yellow bias to skin tones while the C100 MKII is decidedly cooler and more magenta skin tones. Just shoot some chip charts, tweak and customize your picture profiles and you should be able to arrive at colors that suit your preference.

Ben Moore · September 22nd, 2017, 01:06 PM

I Used the White Balance offsets in the picture profiles, 1 to blue and 3 to magenta on the MKI and 1 to Red on the MKII

Ben Johnston · September 29th, 2017, 01:26 PM

Thanks Dan. I have been using the offset controls to push more red and green in.

I wonder if Canon tried to correct the C100 and overshot with the mkii?

September 10th, 2017, 10:17 AM	#1
Ben Johnston New Boot Join Date: May 2016 Location: Uk Posts: 11	C100 Mk2 White balance test (this camera needs warming up) Possibly of interest... I've noticed my C100mk2 wants to pull towards blue/magenta. Here's a white balance test that seems to confirm it. White balance settings in the bottom right, then the correction applied by Resolve in the bottom left (using the white balance picker on the top right square, correction bypassed in the images). Image linked to below. AWB is very blue, with a magenta tint. Applying the same temperature in custom WB gets closer and, weirdly, is more accurate along green/magenta (AWB should get this closer). The daylight preset (5500K) is much more accurate. Finally, a grey card reading gets closest, just a touch too warm/green. When I tried this test for the first time, the grey card reading was almost perfect, perhaps because I filled more of the frame with the grey card. Camera was ABB-ed. Conclusion - assuming Resolve is accurate, beware of AWB with it's blue/magenta tendencies. Other picture profiles might do better. C-log certainly seems warmer, with less pull towards magenta, but I haven't tested it. PS. Can anyone manage to upload images on this forum....? https://www.dropbox.com/s/dlaa43obef...-test.jpg?dl=0

September 12th, 2017, 09:05 AM	#2
Ben Moore Regular Crew Join Date: Nov 2007 Location: Vancouver, WA Posts: 190	Re: C100 Mk2 White balance test (this camera needs warming up) I have noticed that as well. I'm surprised its so much different than the MK 1. Matching the 2 is tricky

September 20th, 2017, 09:53 AM	#3
Dan Brockett Inner Circle Join Date: Feb 2006 Location: Los Angeles, California Posts: 2,109	Re: C100 Mk2 White balance test (this camera needs warming up) You are aware that you can program in RGB offsets easily in your picture profiles, right? While it make take some experimentation, the C100 and C100 MKII can be color matched and I agree with your assessment, the C100 MKI veers much more toward red with a yellow bias to skin tones while the C100 MKII is decidedly cooler and more magenta skin tones. Just shoot some chip charts, tweak and customize your picture profiles and you should be able to arrive at colors that suit your preference.

September 22nd, 2017, 01:06 PM	#4
Ben Moore Regular Crew Join Date: Nov 2007 Location: Vancouver, WA Posts: 190	Re: C100 Mk2 White balance test (this camera needs warming up) I Used the White Balance offsets in the picture profiles, 1 to blue and 3 to magenta on the MKI and 1 to Red on the MKII

September 29th, 2017, 01:26 PM	#5
Ben Johnston New Boot Join Date: May 2016 Location: Uk Posts: 11	Re: C100 Mk2 White balance test (this camera needs warming up) Thanks Dan. I have been using the offset controls to push more red and green in. I wonder if Canon tried to correct the C100 and overshot with the mkii?