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roremc 04-20-2011 10:10 AM

Go Pro Question
Has anyone had any problems with filming snow and it coming out pure white?

On Sunday I was riding at Sunshine on what was probably the best day of the season with lots of fresh pow on some serious double black terrain. (exactly what I bought the go pro for in the first place)
When I got home I put it up on the tv and everything was washed out. It seems there is a problem with the white balance. Has anyone else had this problem?

I pulled this vid off youtube as I havent bothered to load any of mine yet.

Skip to 0:55 and this is what the majority of my stuff looks like. (I was also filming on a partly cloudy day)

YouTube - GOPR0063.MP4

Any ideas?

FlipJ 04-20-2011 11:28 AM

There is a setting that you might have turned on. Spot Metering exposure which is used for indoor filming, using outdoor light. Not sure what setting it is, but just take a quick peek at the manual.

hpin 04-20-2011 11:37 AM

Are you using spot metering or the other one?
This thread my help you out, • View topic - Recommendations for correcting overexposure due to sun+snow

Tarzanman 04-20-2011 02:57 PM

I will explain. Exposure level is a setting that the camera uses to determine what is too dark and what is too bright in terms of what it is recording. This is important because there is a lot MORE light around on a sunny day with very-reflective snow and the very-bright sky everywhere versus a day at the indoor rock climbing gym where the halogen lights are 40 ft away from you.

The camera has to be able to record well enough in both settings even though the camera sensor has a limited range of brightness. The camera decides what the correct brightness is by metering what it sees.

You can tell the camera to look at everything in the field-of-view and then make its decision as to the proper brightness (evaluative metering), or you can tell the camera to only look at what it is focused on in the middle to determine the proper brightness (spot metering).

Using the wrong mode can cause different problems. Blown out highlights means that the camera was metering off of a subject that did not reflect much light (like a shadow), compared to the surroundings.

Very high contrast an really muddy dark areas with no definition means that the camera was metering off of a subject that was really bright compared to other subjects, so everything else looks very dark with no detail.

Proper cameras give you the ability to adjust problems with exposure... but it can be tricky to do with consumer-level crap like the GoPro which immediately encodes and compresses the video into formats that are not well suited for editing.

You can try using fancy video editing programs like Vegas or Premiere to correct the problem, but you may have limited success depending on how blown out everything is.

White blaance is something different. White balance is for adjusting the color of how everything appears based on what color the lighting is when you are recording. (for example, the lights in your living room and bedroom are 'warm' yellow lights, while the lights in an office or classroom are closer to white).

hpin 04-20-2011 03:22 PM

I use spot metering all the time and none of my gopro snowboarding video look that washed out.

roremc 04-25-2011 11:57 PM

A quick thanks to everyone that commented. I tried the spot metering and it worked. If I'm above treeline and there is only snow around its still a bit white but way better than it was. Thanks! :)

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