Spring 2012

Spring 2012
by ani

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Questions about how to choose the correct colour balance for a given scene, and how it affects photos.

learn more… | top users | synonyms (2)

6
votes
1answer
89 views

Correcting severe cyan colour cast

I am attempting to retrieve extremely strangely colour cast photos for some friends. These are from an overseas trip and they would value their availability in something like correct colours. The ...
1
vote
0answers
30 views

What should I set my white balance to to record the true colour of the Milky Way? [duplicate]

When doing astro-photography in the past I have often set my white balance to tungsten to get the bluey tint that is so common with pictures of the milky way. However,the milky way isn't that colour (...
1
vote
2answers
69 views

Does changing the WB in post-processing affect noise?

I have a friend who took some macro photos of snowflakes with the WB preset to "Cloudy", but lighted from an 11-watt flourescent bulb. Snowflakes look more pleasing with a blue tint, rather than "warm"...
3
votes
4answers
135 views

Why do gray cards come with a black card and a white card?

Whenever I adjust my white balance during post processing I try to select a sample of 18% gray somewhere in my picture. In the real world, that color doesn't always exist in every frame that I ...
0
votes
0answers
27 views

white back ground [duplicate]

I am a retailer that is starting a web store. My problem is I'm not a photographer. I have taken several picture of my shoes in a photo booth that I have purchased.I cant seem to get the back ground ...
4
votes
1answer
134 views

What are the differences between color calibration cards?

The lower level ColorChecker Classic is around $59 USD, Datacolor Spyder comparable one is also around $50... meanwhile there's some DKG Tools for only $25. Current on B&H: DKG Color Spyder 24 ...
0
votes
2answers
116 views

Room color temperature

Gday. In my room I have a monitor that I feel is good for color accuracy. It's not the best but it's the best i've had. It's an LG 24MP76. I like processing my photos, so I bought some LIFX light ...
5
votes
2answers
457 views

How do I find the right whitebalance for a night cityscape?

There are a number of articles on the net saying how to properly set WB for night shots. Specifically for cityscapes. For example, one of them says to use fixed Kelvin values like 2500 for nice blue ...
3
votes
3answers
140 views

White Balance - How is plastic made white? RGB(255,255,255)

Yes, it is a photography question, but it requests a chemist answer. Overall concern is about the neutral color accuracy of White Balance cards that are white. It can be a purchase and a usage ...
0
votes
2answers
132 views

How do I standardize white-balancing in Lightroom without using auto?

I want to edit a bunch of photos at once, in Lightroom, to have roughly the same white balance (as close to neutral as possible – not any artistic tinting, or anything). I use a Canon camera to shoot ...
2
votes
2answers
44 views

Control for shading and variable outdoor lighting conditions

First, I am a wildlife ecologist who does some very amateurish photography on the side. I would like to start using digital photography techniques to collect field data. The Problem: I need to take ...
35
votes
3answers
2k views

Should changing the shutter speed affect the moon's color?

I just took two moon photos: one at shutter speed= 1/400 and the other at 1/200. Both @200mm, f/8, 100 ISO I can understand with a higher shutter speed less light will enter into camera sensor, ...
2
votes
1answer
99 views

Why does my 6D create greenish images with a high temperature white balance setting?

My 6D gives a strange white balance when shooting pictures, it's very green when a high temperature white balance is used. I've tried resetting my settings to the manufacturing default, but I still ...
2
votes
1answer
56 views

Auto White Balance data

I am a wedding photographer and work under a wide range of lighting conditions. I prefer to set my white balance with a Sekonic Kelvin meter and use this value in the Kelvin setting on the camera. I ...
1
vote
4answers
136 views

White balance math for white, black, and grey color cards

This question got me very close to my answer, but I'm looking for more precision: What is the math behind white-balance, and how to choose it? I have an image with white, grey, and black color cards ...
2
votes
1answer
79 views

Why is the white balance so different when using daylight bulbs?

I normally photograph landscapes. However I am dabbling in photographing some friends' artwork and I am quite pleased with the printed results, when you consider the nightmare of colour matching ...
2
votes
0answers
48 views

How does a digital camera measure white balance? [duplicate]

Is there some kind of dedicated sensor for white balance in the camera, or does the processor just grab the normal image signal and perform some processing like "shift color to make the brightest part ...
-1
votes
1answer
70 views

In working out Auto White Balance, what to do if there are multiple sources of light?

I'm trying to research Auto White Balance Algorithms. These algorithms are defined assuming only one source of light. For example: 1.Grey world assumption ( this assumes that R, G and B average ...
3
votes
3answers
252 views

Why do my photos have an exaggerated blue hue when I shoot in manual mode?

I'm learning my Nikon D3200. Lately I've noticed that my photos (manual mode) have an exaggerated blue hue. I've taken photos in Auto mode and emulated the aperture and shutter speed settings in ...
2
votes
1answer
103 views

How do I convert the color space correctly?

Since I'm working on a new camera's 2A tuning, I have to calculate the color temperature correctly by myself, but the only data I have is the RAW image that is captured in D65 light source with a ...
6
votes
4answers
569 views

When do I have to readjust the white balance in studio?

Let's say model wears dress number 1, I setup my lights to light setup 1 and we hold a gray card a shoot it and set the white balance of camera on that. Now if model changes to dress number 2 and I ...
2
votes
1answer
190 views

Two of the same cameras giving different white balance values in Lightroom

I have two cameras, both Canon 5D MkIII, both set to the same white balance. The only difference is the lens. One has a 24-70 f/2.8, the other has a 70-200 f/2.8 (both Canon brands). When I ...
3
votes
2answers
114 views

Can golden/blue hour light be simulated?

Photographers love the light available in the golden hour (just after the sun rises and before it sets) and blue hour (just before the sun rises and after it sets). Part of the reason for that is that ...
5
votes
2answers
253 views

What temperature lighting should I use for photographing old paper photos?

I know I should be using daylight lighting system to achieve natural looks of photographs, but I don't want to spend a lot of money for profesional lighting equipment, so I was thinking to just put a ...
0
votes
1answer
33 views

How can I revert back to the preset incandescent white balance on a Nikon camera?

I have changed the setting on the preset incandescent white balance on my Nikon D5200, and can't seem to find a way to change it back.
1
vote
2answers
48 views

How to configure white balance on a light table?

I am currently photographing large aerial (300mmx260mm) transparencies on a light table using an Olympus E-420 and spirit level. How would I best set up the white balance of such a set up?
31
votes
5answers
5k views

How does Kelvin for color temperature relate to Kelvin for actual temperature?

Color doesn't have actual temperature. Try putting a blue square and a red square up on your monitor and hold a thermometer against both regions. If you find that there's a difference, you're doing it ...
2
votes
2answers
135 views

Why do we actually need to adjust white balance?

The answer seems obvious: without white balance, we would have bad color reproduction, because different lighting would produce lots of different color tints. Our eyes adjust for the color tints so we ...
1
vote
1answer
67 views

How to create custom white balance on Nikon D800 with a small gray card?

I'm using a 3x5 grey card to set a custom white balance for a Nikon D800 camera, however, for my 50mm lens, the card does not completely fill the camera's image frame. It appears this is throwing off ...
1
vote
3answers
150 views

What is the “right” displayed color?

Taking in consideration the web environment only, not screen-to-print jobs, let's suppose that we have a font color e.g. #f1ecd6 Hex, displayed by a LCD, properly—by a hardware device—calibrated, ...
0
votes
2answers
151 views

Why do I get inconsistent results with Canon ETTL flash?

When using any flash I have ever bought on whatever camera I ever had I get inconsistent results. So I am assuming it is my lack of knowledge. I am now using the canon 6d and a 600ex-rt flash on ...
0
votes
2answers
89 views

Is there a 120 film with cool colors?

Does anyone know of some 120 film models that yield cool colors? I'm not looking for super saturated films or weird toy films by Lomography. I'm looking for very cinematic colors. Most likely vintage. ...
0
votes
0answers
44 views

How to force xRite ColorChecker passport software detection orientation?

I'm using the xRite ColorChecker Passport for color correction in RAW photos. I like to have the passport by on the main plane of the item being photographed so that the lighting of the reference ...
1
vote
1answer
68 views

Canon custom white balance does not import to Lightroom / Photoshop [duplicate]

I have a Canon SL1. I snapped several shots this morning with a custom white balance that was set in camera. When I import the photos to Lightroom, they come in without the custom white balance. ...
3
votes
4answers
155 views

How do I warm the background color but keep natural color in the subject?

I'm just learning photography and I found this picture http://www.michaelkormos.com/blog/a-lovely-afternoon-family-photography-nyc-family-photographer The background was warm with yellow soft tones ...
3
votes
2answers
258 views

Color correcting difficulties… on cloudy days

I own professional photography equipment and I know how to achieve correct exposure. I also use adobe lightroom. I use auto white balance but I am usually pretty good at eyeballing color corrections ...
4
votes
3answers
178 views

Does white balance totally correct color shift due to lens glass or coating?

I'm about to create custom profiles for my camera and in order to do so I need to shoot pictures of color reference card. I don't really understand the impact of the lens I choose to create the ...
1
vote
3answers
116 views

How can I compensate for soft white ceiling lights adding warmth to the light coming from a big window? [duplicate]

I have 12 overhead soft white canned lights in a 10ft ceiling, each casting about 65watts. A large tinted window is bringing a ton of grey light into a 550 ft room. So my problem is now the can ...
3
votes
6answers
247 views

How can I know what is ideally neutral in a picture, in order to set white balance?

According to my understanding white balance is procedure that removes effect of colorful lengthening. It makes picture like it was lightened with ideal white color light. Please, correct me if I'm ...
2
votes
1answer
137 views

Why would one lens produce warmer colors than another?

I was recently watching the following comparison video between the Nikon 85mm 1.4G and 1.8G (judge as you will): https://www.youtube.com/watch?v=gZkbEivJbUw When they showed off very similar ...
2
votes
0answers
60 views

Is there a way to change the size of the custom white balance sampling area on Fujifilm X cameras?

Like many cameras, my Fujifilm X-T10 has a feature to set white balance by framing a white object and clicking the shutter. From the manual: White balance measurement options will be displayed; ...
1
vote
3answers
130 views

Is a gray card sufficient to get accurate colors in a photograph?

I have a card that has three bands: black, gray, and white. If I place this in a photograph I am taking that I want to be color accurate, will that give me sufficient information to tune the photo, ...
1
vote
3answers
126 views

How do you use a gray card…in the dark room?

Similar to this question; however, I'd like to know more information about using a gray card in a dark room. I know that I am supposed to balance off of it; however, after I make a test strip, how do ...
2
votes
2answers
98 views

What should I do with negative values when computing sRGB colors from spectra?

This question is from the computational side of things. Maybe some of you computational photography folks can help me out. If I have a normalized CIE XYZ tristimulus vector like this one: (x, y, z) ...
2
votes
3answers
337 views

How can I get my colours true for product photography?

I am struggling to get some colours correct in my product photography. I have used a gray card to set a custom white balance and also tried AWB in the camera, but still seem to have trouble getting ...
5
votes
1answer
210 views

What are the color temperatures of the iPhone 6's flash?

The iPhone 6 has a dual-LED flash. What are the color temperatures of the two LEDs? Are there any commonly occurring light sources or scenes that are outside this range? For example, a sodium vapor ...
15
votes
5answers
3k views

How do I accurately and objectively capture the color of the setting sun?

I'm taking a photo of the setting sun, and want to capture the color of the sun accurately and objectively. If we're talking about reflected right, I understand that the camera can't distinguish ...
5
votes
3answers
256 views

Is there a way to set white balance of a RAW to match the preview JPEG?

When I view ARWs in Lightroom, I sometimes find the white balance of the embedded preview JPEG to be perfect, so I'd like to apply it to the RAW. How do that I do that in LR or other (free) software? ...
9
votes
3answers
809 views

Why are the colors so different in these two photos from different cameras even though I set white balance to the same temperature in Lightroom?

I have a Nikon D750 and D800e. I was attempting to run an ISO test on the two, but I can't put my finger on why the two came out with such a different color balance. Here was my method: Put D750 ...
7
votes
2answers
183 views

What Kelvin-range of “white balance” does the human vision compensate?

Empirically judged, I would assume that the human vision can't compensate the color of 1850K (candle light) equally efficient as the color of 3000K (incandescent lamp). So, is there a range in which ...