Jump to content




Photo

Camera Loses Color On Every Shot


  • Please log in to reply
12 replies to this topic

#1 Ben Griffin

Ben Griffin
  • Basic Members
  • PipPip
  • 12 posts
  • Other
  • Houston, TX

Posted 25 January 2015 - 06:43 AM

I'm using a Sony RX100 m3 camera to film a corporate interview type video. We've done multiple takes and on every one, starting at around the 8 second mark it seems to lose its color richness. It's pretty subtle but noticeable. It kinda turns pale green and is only really noticeable on the skin. See the two images below.

 

Does anyone have any idea what this might be? We are complete novices using any type of camera but it seems like a pretty decent shot until this happens.

 

Not sure if any of this matters but, we're shooting 24p, 50 fps, f2.8, ISO at 125. File format is XAVC S

 

Before.png

 

After.png


  • 0




#2 Adrian Sierkowski

Adrian Sierkowski
  • Sustaining Members
  • 6771 posts
  • Cinematographer
  • Los Angeles, Ca

Posted 25 January 2015 - 07:29 AM

Is this happening if you play it out of the camera onto say an HDTV? It could be whatever you're using to look at the video file on your computer is having trouble with the compression.

Also  on your computer is that happening on every NLE/Player.

 

have you tried looking at the scopes in something like Premier or Avid to see if anything actually changes?


  • 0

#3 Ben Griffin

Ben Griffin
  • Basic Members
  • PipPip
  • 12 posts
  • Other
  • Houston, TX

Posted 28 January 2015 - 12:20 AM

The problem was showing up on all video players. I actually first noticed it when I uploaded a test clip onto youtube and watched it back.

 

The strange thing is, it's not doing it on any new film after that night. I'm scratching my head over here.


  • 0

#4 Adrian Sierkowski

Adrian Sierkowski
  • Sustaining Members
  • 6771 posts
  • Cinematographer
  • Los Angeles, Ca

Posted 28 January 2015 - 12:21 AM

That is very odd. Can you upload a camera raw somewhere and post a link. I'll look at it and I know many others will have a look at it as well.


  • 0

#5 Phil Rhodes

Phil Rhodes
  • Sustaining Members
  • 11234 posts
  • Other

Posted 28 January 2015 - 06:45 AM

Looks like it's in auto white balance or something crazy. But it isn't. Is it?

 

P


  • 0

#6 Ben Griffin

Ben Griffin
  • Basic Members
  • PipPip
  • 12 posts
  • Other
  • Houston, TX

Posted 28 January 2015 - 11:48 AM

That is very odd. Can you upload a camera raw somewhere and post a link. I'll look at it and I know many others will have a look at it as well.

Forgive my ignorance, but what do you mean by camera "raw"? I saw this setting on the camera but don't understand what it means.

 

Looks like it's in auto white balance or something crazy. But it isn't. Is it?

 

P

Yes, you're right. I didn't even know what white balance was until you asked this question then I googled it. I am using florescent lighting with a color temperature of 5500K. Which white balance setting would you recommend?

My options are: Flour: Warm Light, Flour: Cool White, Flour: Day White, Flour: Daylight 


  • 0

#7 Mark Dunn

Mark Dunn
  • Basic Members
  • PipPipPipPip
  • 2182 posts
  • Other
  • London

Posted 28 January 2015 - 11:52 AM

'Raw' means uncompressed. It sounds like you're not using it so the question is academic.

Put a Kodak grey or white card in the shot and take a custom white balance setting off that.


  • 0

#8 Ben Griffin

Ben Griffin
  • Basic Members
  • PipPip
  • 12 posts
  • Other
  • Houston, TX

Posted 28 January 2015 - 11:57 AM

'Raw' means uncompressed. It sounds like you're not using it so the question is academic.

Put a Kodak grey or white card in the shot and take a custom white balance setting off that.

Would a piece of white computer paper work?


  • 0

#9 Mark Dunn

Mark Dunn
  • Basic Members
  • PipPipPipPip
  • 2182 posts
  • Other
  • London

Posted 28 January 2015 - 12:12 PM

It's the next best thing and OK if your needs are not very exacting. The problem is that you don't know how much tint it retains after bleaching.


  • 0

#10 Phil Rhodes

Phil Rhodes
  • Sustaining Members
  • 11234 posts
  • Other

Posted 28 January 2015 - 03:41 PM

Basically, yes, a piece  of white paper would probably be fine. 

 

People out shooting news tend to balance on any available neutral object. A white-painted vehicle, a copy of the Times, the everpresent British overcast...

 

Of course the overcast is often bluish, being backed by blue sky, but that's fine: it takes coldness out of the scene. You just have to be aware of what effect it'll have. Try white balancing on some grotesquely inappropriate objects and observe the results - you'll get the idea.


  • 0

#11 Ben Griffin

Ben Griffin
  • Basic Members
  • PipPip
  • 12 posts
  • Other
  • Houston, TX

Posted 29 January 2015 - 01:29 AM

Okay I played with it a little bit and this is what I came up with. Please let me know if the white balance looks better.

New_Bitmap_Image.png


  • 0

#12 Mark Dunn

Mark Dunn
  • Basic Members
  • PipPipPipPip
  • 2182 posts
  • Other
  • London

Posted 29 January 2015 - 05:39 AM

None of us will be able to help you much . We all have monitors calibrated to different standard for different purposes, or even uncalibrated in my case.

You need to read up on colour management.

Subjectively it look better to me but you've also changed your lighting setup. Has the colour change problem gone away?


Edited by Mark Dunn, 29 January 2015 - 05:41 AM.

  • 0

#13 Phil Rhodes

Phil Rhodes
  • Sustaining Members
  • 11234 posts
  • Other

Posted 29 January 2015 - 07:41 AM

Within the limits of this uncalibrated display, there doesn't look to be much wrong with it to me. Perhaps a bit red in the face, but I'm being hyper-critical.

 

P


  • 0


CineTape

The Slider

Technodolly

Broadcast Solutions Inc

rebotnix Technologies

Tai Audio

Rig Wheels Passport

Ritter Battery

Zylight

Pro 8mm

Visual Products

Glidecam

Abel Cine

Paralinx LLC

Aerial Filmworks

Metropolis Post

Willys Widgets

CineLab

Aerial Filmworks

Visual Products

Zylight

CineTape

Willys Widgets

rebotnix Technologies

Rig Wheels Passport

Technodolly

Tai Audio

Paralinx LLC

Ritter Battery

Broadcast Solutions Inc

Pro 8mm

Metropolis Post

The Slider

Glidecam

Abel Cine

CineLab