WB Before and After shooting - RAW

Started Feb 25, 2007 | Discussions
Zewt Regular Member • Posts: 437
Thanks

Thanks for the clarification Raul. I have loaded the image and stored the WB into D1.

I'm curious to see how this works over the way I normally WB.

Thanks again.

oscarc Contributing Member • Posts: 602
tagging myself on...

to read along.

Russ Sprouse Contributing Member • Posts: 845
Re: another way, no NC needed

I have a D2Xs, and I am having difficulty figuring out how to get UniWB into my camera. The new Camera Control Pro does not seem to have the ability to load the .nwb file, and Capture Control 4 doesn't seem to recognize my camera.

Will this D200 sample image work with the D2Xs, or do I need one created on a D2Xs?

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Russ

Zewt Regular Member • Posts: 437
Re: What is UniWB

I do not see how to "Write WB to the camera" in camera control? Is this a hidden function?

Rich Gibson
Rich Gibson Veteran Member • Posts: 3,378
Re: marked LCDs

Would you please expand on this technique? Thanks.

J Kuek Regular Member • Posts: 312
Re: WB Before and After shooting - RAW

Only matters if you get it wrong and have a huge amount of photos to work through! Very frustrating... That is why I almost never shoot AWB.

Rich Gibson
Rich Gibson Veteran Member • Posts: 3,378
Re: What converter do you use Julia?

I think it's rawmagick

http://www.rawmagick.com/

sting Veteran Member • Posts: 4,970
Re: Can NX be used to upload WB?

Julia Borg wrote:

No, NX is crippled in this aspect.

if you want this feature, please e-mail Nikon

Julia, do you have a contact email for Nikon for this matter? I want to send them a buglist for NX 1.3.2 . Thanks for posting and educated us on UniWB. Very cool.

Darren Langdon
Darren Langdon Contributing Member • Posts: 766
Re: What is UniWB

Julia Borg wrote:

you need to connect the camera, start Camera Control, then start NC
proper, bring the white balance menu, click the "sheet" icon to the
right of the green dot (upper right corner), Load UniWB, click again,
Write white balance to camera.

you can find this procedure in Nikon Capture Help file.

Could someone please clarify this for me. I see no sheet icon or green dot anywhere in the software. I assume "bring the white balance menu" means open the white balance menu in capture nx under base adjustments.

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Marianne Oelund Veteran Member • Posts: 7,791
Quick in-camera UniWB for D3/D300

Darren Langdon wrote:

Could someone please clarify this for me. I see no sheet icon or
green dot anywhere in the software. I assume "bring the white balance
menu" means open the white balance menu in capture nx under base
adjustments.

With the advent of Green-Magenta axis WB shift in the D3 and D300, it's possible to set up a good UniWB in-camera.
D300: Set manual WB to 5000K with G5 shift.
D3: Set manual WB to 4760K with G5 shift.

This is very accurate for the D300. For the D3, the Green histogram will still indicate about 1/10 stop low - if anyone cares.

With this adjustment, all channels will have about 3/4 stop of headroom when the histogram reaches the right side (when the highlight warning starts to blink).

Disclaimer: This setup was established at a sensitivity of ISO 1600. I have not checked its accuracy at other ISO settings yet.

heikkipekka
heikkipekka New Member • Posts: 18
Re: WB Before and After shooting - RAW

williams-pics wrote:

time to stop and keep looking at histograms infact I only look at the
images after each sequence of 3 or 4 images just to make sure thay
have been recorded and in very bright conditions I check to ensure
the highlights are not blown, I have saved all the settings in CS2

I believe point made earlier was if you read your in-camera histogram and shoot RAW you should use UniWB or similar to get correct histogram information about your RAW file. If you don't read your in-camera histogram to check exposure then it really doesn't matter to use UniWB.

Nothing to do can you get good photos or not but just about getting correct histogram information for your RAW files if you need it.

Cheers!

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mesija Contributing Member • Posts: 982
tag:UniWB

Thanks for a lot of interesting info!

KRW01 Regular Member • Posts: 323
Very useful thread nt

.
--
If it moves, shoot it.
Kevin

fredericFahraeus Regular Member • Posts: 302
Sounds drastic to me!

Yes I must say, every time you have to connect the camera and load something into it or messing around with its default settings, it makes me nervous.

Many collegue and Pros I know of use the Expodisc when lighting is very critical or mixed.

Iliah Borg Forum Pro • Posts: 29,179
Re: Sounds drastic to me!

Many collegue and Pros I know of use the Expodisc when lighting is
very critical or mixed.

While many who started to use UniWB discovered that they were routinely underexposing, and their complaints to high levels of noise, blown out channels, loss of saturation in shadows, etc. were unfounded to a large extent.

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Gnomus New Member • Posts: 20
Re: Sounds drastic to me!

If I don't have Nikon Capture (I have NX2) how can I get UniWB into my D700 and D300?

Iliah Borg Forum Pro • Posts: 29,179
Re: Sounds drastic to me!

Gnomus wrote:

If I don't have Nikon Capture (I have NX2) how can I get UniWB into
my D700 and D300?

You need to obtain or to make yourself an appropriate jpg or nef file. Searching here may help getting a ready-made file together with the instructions on how to copy white balance from it.

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Iliah Borg Forum Pro • Posts: 29,179
Re: WB Before and After shooting - RAW

If you don't read your in-camera histogram to check exposure then
it really doesn't matter to use UniWB.

Sometimes it does matter, because UniWB allows to avoid overflow problems that happen in raw converters. And of course it matters a lot if you are using colour filters to compensate for lights. With UniWB it is much easier to know what filters are needed.

The whole shooting process becomes more consistent when you use UniWB.

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camerashy Veteran Member • Posts: 3,505
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momonyc Regular Member • Posts: 408
tag -nt-

Julia Borg wrote:

How would you approach taming the noise if you're shooting low
light moving subjects in a club, so let's say you're stuck with
1600 ISO 1/80th at f2.0.

maybe you are underexposing.

my Nikon cameras are loaded with UniWB and linear "custom" curve.
that allows to see histogram that actually reflects raw data and thus
to judge exposure better.

I do not bump exposure in camera, instead I push in processing raw
(but not with ACR of course, ACR eV compensation is non-linear and
brings too much noise). D2X is staying at ISO 320

my LCDs are marked with eV to know how much to compensate.

I have hot mirror filters on the lenses to prevent chromatic noise in
shadows which is caused by IR contamination.

raw converter I use is much slower then Nikon Capture, but less noisy.

before I started to use all of the above I was shooting parties with
1D, but was not satisfied with color and details at high ISO settings.

yesterday I received S5 which from the first shoot shows a lot of
promise in low light. but it focuses slower then I like and fps is
also lower then what I'm used to.

maybe to use pro cameras we need more expensive computers. 1Gb RAM
may be not enough even to run WinXP in an efficient manner.

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