File :-(, x, )
Does white balance affect RAW files? Anonymous
So I'm arguing with my friend.

I'm telling him the RAW is just the digital negative, it's what the sensor got through the lens and the white balance you set in the camera doesn't change anything to the file itself. I could take a picture in plain daylight in tungsten mode and it would still be perfectly fine if I bring it back in processing.

He's saying the settings of WB in the camera changes the color temperature of the RAW file and that the changes you make when processing are better if your WB was set right on the spot.
>> Anonymous
as stated, i think you're both right. You can process it back from a bad WB, but it'd probably be better if you just just had it right to begin with.
>> Sicko !L3HRY/miC.
I think he's got a point, extreme changes in colour balance look terrible and create a lot of noise.
>> Anonymous
RAW means RAW. There is NOTHING done to the file after it is pulled from the sensor other than a little lossless compression and the writing of EXIF data.

The white balance can be any arbitrary number and it won't affect the end result one bit. I had the same thought, so one day I tested it. I took some shots inside at 2000k and auto balance and went outside and took shots at 9900k and auto balance. When I imported the shots and took the value the auto WB meter gave and put it on the "screwed up" shot, there is no difference between the pictures.

Setting the WB in the camera is only advantageous to having a histogram that properly represents what the final image is and having a preview in-camera that looks decent.
>> ac !!VPzQAxYPAMA
>>114197
>>114200
These people, and your friend, are wrong. You're right.

The pixels have no concept of white balance. They just know how much light they got, and whether they're an R, G, or B pixel on the Bayer grid. White balance is applied to the raw pixel data by the software in the camera or the RAW processing software on your computer. While the camera does set a flag in the RAW file for what the white balance was, it doesn't change any of the pixel data. It just puts in a little flag somewhere in the RAW file saying what temperature it thought the light was at.

So yeah, if you're shooting raw, it makes absolutely no difference what WB setting you have it set to on camera--the data in the pixels in the RAW file will be exactly the same.

(Your friend and>>114197and>>114200are right when talking about JPEG, though. But we weren't talking about JPEG)
>> Anonymous
>>114274

No slots on the Canon 580EX. Fucking Canon.

Thank god for Vivitar and the 285HV.
>> elf_man !!DdAnyoDMfCe
>>114273
Get yourself some velcro.
>> Anonymous
>>114283

My 580EX is a really expensive wireless trigger for my Vivitars. I don't use it unless it's my only light source.

But yeah, velcro. Do I find it myself somewhere or can I buy it from photo stores?
>> elf_man !!DdAnyoDMfCe
>>114290
Sorry, I've never bought velcro, as I don't have a need for it yet, I've just seen it used.
Not photo stores, though, try a hardware store or something.
>> Anonymous
You can buy velcro stickers from craft shops cheap or cinch straps for flash heads from photography outlets if you don't want stuff stuck to it.
>> Anonymous
ausfag - picked up rolls of velcro dots (50 dots x 20mm) at any $2 shop/reject shop/cheapo shop. I can't recall your american name for it - nickel & dime? where you get your first real six string.
>> Mullenkedheim !ZD4Ay8nWso
>>114339
that would be a 5 and dime, but i don't think they exist anymore, since it's not the summer of 69 anymore, and they've all become dollar stores.
>> Sicko !L3HRY/miC.
     File :-(, x)
So what's the explanation for something like this?

I'm not really an expert with RAW.

Camera-Specific Properties:Equipment MakePENTAX CorporationCamera ModelPENTAX K100DCamera SoftwareGIMP 2.4.0Sensing MethodOne-Chip Color AreaColor Filter Array Pattern564Focal Length (35mm Equiv)34 mmImage-Specific Properties:Image OrientationTop, Left-HandHorizontal Resolution72 dpiVertical Resolution72 dpiImage Created2008:01:17 09:25:05Exposure Time1/60 secF-Numberf/4.5Exposure ProgramManualISO Speed Rating1600Exposure Bias0 EVMetering ModeCenter Weighted AverageFlashNo FlashFocal Length23.00 mmRenderingNormalExposure ModeManualWhite BalanceManualScene Capture TypeStandardContrastNormalSaturationNormalSharpnessNormalSubject Distance RangeClose View
>> Anonymous
>>114352
Pushing the red channel too much is causing noise. When dealing with strongly colored light sources, the noise threshold is going to vary widely from color to color rather than being relatively uniform.

That photo has very little red light available, so in order to bring the red balance up in the edit you effectively have to push the exposure just in the red channel several stops. That put the red channel over the noise threshold despite the fact that blue and green were still OK.
>> Anonymous
Use a filter in those cases ;-D
>> Anonymous
>>114356
Or why would you try to correct for WB in a situation with gelled lights?
>> Anonymous
What's the point of RAW if the selected WB effects the RAW image?

Nonsense I say, it does not.

I keep it at AWB all times, because I trust my 30D.
Even if it does effect by the way (and it does not) keeping it at AWB should be enough.