Spring 2012

Spring 2012
by ani

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Color is the human perception of light as having different hue, from reds and oranges, through yellows and greens, to blues and violets. Color is a fundamental aspect of the arts and photography.

learn more… | top users | synonyms (1)

2
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1answer
3k views

How can I fix a blue colour cast from my Canon i9950 printer?

I have a Canon i9950 with an aftermarket CISS. It used to be fine, but having not used it for a while over Christmas, now all my prints are coming out with a horrible blue cast. I have checked that ...
17
votes
4answers
3k views

How do I shoot birds against the sky to be faithful to their colour?

I have a Nikon D5300, and a host of hawks flying around near where I live. I have two lenses: an AF-S Nikkor 18-55mm VR (1:3.5-5.6GII), and an AF Nikkor 70-300mm (1:4-5.6G). The latter is excellent ...
0
votes
2answers
349 views

Why do the thumbnails for grayscale images show up in color in Windows Explorer?

I have some images from a Nikon SLR that I have converted to grayscale, however the thumbnails in Windows Explorer are in color. Is the thumbnail information stored in the file header, or is the color ...
0
votes
2answers
76 views

On iOS, why would one want to pick a 'video' pixel format (16-235) over a 'full' format (0-255)?

Take a look at this screencap from this year's WWDC session 501 "Advances in iOS photography". As an app developer, you can tell the camera subsystem to either use the 'video' pixel format or the '...
6
votes
7answers
187 views

What is the actual color space of film in film photography?

I have been thinking about this question for a while now, and I haven't found an answer online. Modern technology (scanners, screens, digital cameras, printers...) use technical color spaces to ...
3
votes
2answers
608 views

How can I emulate 50's and 60's aircraft photos using film today?

I started playing with analog photography about a year ago. I find it really interesting, especially the choices of films that change the colors and feeling of the pictures so much. One kind of ...
7
votes
5answers
857 views

How can I reduce the effect of sodium vapor street lights in night photography?

I would like to light buildings at night using torches etc. How do I reduce the sodium light (street light ) that is cast on it. Can I reduce it with a filter and if so which one?
18
votes
7answers
5k views

Why not use a camera as a colorimeter?

Clearly to achieve reliable results, it is essential to calibrate key parts of the imaging pipeline - particularly the computer display on which images are edited. Few seem to question the ...
4
votes
3answers
110 views

What determines whether chromatic aberration will be purple/green or red/cyan?

In my experience, both with my own photography and looking online, chromatic aberration is usually purple on one end and green on the other. However, I have also seen the same effect with red and cyan,...
0
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2answers
46 views

Do some colors appear more sensitive to chrominance perceived than others?

I'm interested in comparing the camera readable chrominance change to what a person can actually see. Are there any colors that result in a physical / measurable change in chrominance, but are ...
3
votes
5answers
514 views

How can I change contrast within a single colour?

What techniques can be used to change the perceived contrast within a single colour only, in post processing? For example, how can I change the contrast of the blues to affect the sky, or the green ...
0
votes
0answers
57 views

Camera degradation over time in mobile phones

I am working on the concept that the color reproduction property of a camera in a mobile phone can shift over time as compared to what it used to be in a newly bought phone. So, came with some doubts: ...
1
vote
1answer
107 views

Full well capacity

As I understood, the full well capacity is the maximum number of charges(photoelectrons) that can be stored in a pixel before a leakage to adjacent pixels and causing problems like blooming. In some ...
17
votes
8answers
1k views

Is there any point in photographing directly to black & white? [duplicate]

As opposed to photographing in colour, then having all the freedom to edit it afterwards?
0
votes
1answer
252 views

How can I batch save images with reduced colors in Photoshop? [closed]

I'm trying to record and run a macro in Photoshop that saves images as PNG with just 8 colors. Recording the macro, I save for web, select the options I want, and hit save. But when I play back the ...
3
votes
3answers
214 views

What's the difference between LED and conventional lighting?

Is there any difference in LED lighting vs bulb lighting or any other lighting? Someone said that the LED light doesn't have the full spectrum of light. Is that a problem?
4
votes
5answers
9k views

Why is wrong color coming out of my Rebel T3i?

I'm not a professional at all but bought a Canon Rebel T3i to capture life's moments. The color of my shots are way far off; ie., my sons navy blue and white baseball uniform comes out bright green ...
16
votes
4answers
2k views

Are RGB numeric values equal to CMYK percentages?

are RGB numeric values equal to CMYK percentages?
7
votes
3answers
927 views

Colors while scanning a cross-processed film: why [not] so vivid?

In this question I am trying to understand the nature of colors in scanning cross-processed films. I've thought that I'm okay with photoshop, with subtractive and additive colors etc etc etc, but ...
4
votes
1answer
656 views

How to invert color negative “scan” via DSLR without clipping the red channel?

I am trying to convert color negatives into positives and struggling with removing the orange mask and getting usable colour after inverting. It seems that I constantly clip the red channel no ...
2
votes
2answers
109 views

How do I fade colour in some areas of a photo with Photoshop?

I have photos of biological tissue samples (the attached photo is not mine, it is just an example), which were stained with dye. Because of the nature of the tissue, the staining is uneven (some areas ...
1
vote
1answer
44 views

Vintage Photo Printing

I have some old color (C-prints?) photographs that were printed in the 80's which are quite faded. I would like to have them reprinted but would like to have them printed on the same paper as they ...
3
votes
3answers
244 views

Why are the color spaces we have access to incomplete?

The question, then: If all colors are combinations of red, green and blue, and my monitor's pixels use all three, why is its color space limited to so small a portion of the actual complete color ...
0
votes
2answers
81 views

Taking pictures of rugs for online use

I work for a rug manufacturer in the same office as the photographers for our online sales. They take all photos of rugs in house. They have a tremendous amount of post processing that has to be done ...
0
votes
2answers
102 views

How can I fix this purple spot in my photo?

As you can see, the peach has a purple spot. I don't know what happened. The light is from the right side. I guess that's the place where the light reflected into the lens. Is there anyway I can ...
2
votes
3answers
709 views

What would cause a green color shift in the same photo between my Mac and my iPhone?

I just finished editing a picture and saved it in JPG on my Mac, which look perfectly fine. I sent it to my iPhone and the color completely shifted and look dull. I was wondering what could make such ...
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, ...
1
vote
2answers
127 views

Why would an orange spark appear blue in a video?

I was testing spark generation on my car's ignition system at night and recorded the sparks on my Lenovo S856 cell phone. However while taking the video I noticed that the spark which appeared orange ...
1
vote
3answers
97 views

Any way of achieving accurate color saturation?

There have been multiple times when capturing a landscape where the images I took look really unsaturated. Yeah, I can boost the saturation, but I don't want to accidentally make the photo look ...
4
votes
2answers
291 views
1
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1answer
96 views

How do I create a mask to select only a particular color in Photoshop?

I have a project I'm working on where I'm taking photos of a bunch of cards / posters that are all in grayscale and have to get only the black portions from each of these photos. I know I could use ...
16
votes
7answers
2k views

Why don't color spaces use up the entire color spectrum?

Take a look at the CIE 1931 chromaticity diagram shown with the sRGB color space gamut. Why are certain colors intentionally left out of color spaces, like you see below? Why not just include all the ...
2
votes
1answer
103 views

Why does my white picture have a blue hue?

I took this picture in a soft box illuminated by three 5000k 10 watt LED flood lights (one on each side and a third on top) I'm using a Samsung Galaxy S5 to take the picture, ISO 100 and Matrix ...
2
votes
2answers
164 views

Can an amateur significantly improve colour on a factory-calibrated monitor (like the Dell U2414H)?

I'm mostly happy with my new IPS U2414H, but comparing it side-by-side with my beloved old CRT, I can see that the colours are not quite as good on the U2414H. It has less life-like skin tones, ...
8
votes
1answer
107 views

Who publishes standardized camera specs?

Is there any online resource that provides camera specs that adhere to ISO standards? ISO has published many standards for camera specs: Tonal response ISO 14524:2009: Methods for measuring opto-...
6
votes
3answers
38k views

How can I create a soft pastel tones preset in Lightroom?

Could anyone give any recommendations or links that may help me make my photos in soft, pastel tones, like photos from these albums: http://air-we-inspire.livejournal.com/102576.html http://air-we-...
5
votes
4answers
1k views

What do I need to photograph paintings with accurate color? [duplicate]

I need to photograph paintings, and also small details of paintings. Color accuracy is extremely important. Previous experience (not recent, however) with digital photography showed color divergences ...
9
votes
4answers
716 views

Is there a specific color temperature to film?

Recently, I was taking some pictures of the snow using Kodak Gold (I believe) 200 and Fuji Superia 200. When I got them developed, I noticed that the Kodak had a "warmer" feel to them than the Fuji, ...
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 ...
0
votes
2answers
55 views

How to adjust HSL values on specific areas of photo using adjustment brush in Lightroom and Camera Raw?

How to adjust HSL values on specific areas of photo using adjustment brush in Lightroom and Camera Raw. We can see slider control for temp, tint, exposure... But couldn't control the HSL values. ...
9
votes
3answers
898 views

What is the difference between “color” and “tones”? [duplicate]

I am working through the Teach Yourself Photoshop book. I opened up a NEF file in Adobe Camera Raw. In the text it says: By shooting in raw you capture more information about the colors and ...
7
votes
3answers
219 views

Editing photos for this “milky” and “twinkly,” vivid but nostalgic effect?

I can't really find questions about this style of photography I see a lot, anywhere on the Internet, but I think it's very beautiful and enchanting. It seems both vivid and faded at the same time (at ...
2
votes
3answers
162 views

What's the best method to change colours in a photo to another specific color?

What is the best way to change the colours in a photo to a specific colour? Specifically, how can we change the colours using Curves or Levels Layer? Here are few examples for understanding: orange ...
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. ...
1
vote
1answer
71 views

Metering without a incident light meter

Consider the metering method I used below: I meter all color negative film the same. I use a very simple analog incident light meter (Sekonic L-398 A), nothing fancy or expensive. I rate my ...
1
vote
3answers
706 views

Embedded jpegs in NEF raw files

I open a .NEF image from my Nikon D80 in the Windows Photos app (the modern/"metro" style app). I then zoom in, and it re-renders or something to display higher resolution, but the colours become less ...
0
votes
1answer
142 views

What kind of filter or preset would I use to get this faded yet saturated 1950s-pastel coloring?

I love this look that I see a lot on certain very feminine fashion blogs. I feel like it's not as simple as what VSCO presets do (or at least VSCO Film, vs. Cam, if I'm editing my photos on my ...
1
vote
2answers
235 views

What's the secret to this pastel, beautifully blurred photo?

I see the effect often that appears in this photo – these two things together: 1) a very strong bokeh(?) where most of the image is blurred 2) some kind of color filter that emphasizes bright pastels ...
0
votes
1answer
53 views

How to do color correction on multiple display devices?

Each display device renders colors in their own way. E.g. Apple's retina display renders colors in a more vivid way then an LG display device. The photo editor has to deal with this problem. I use my ...
1
vote
2answers
77 views

Why is the sky bright orange in my Olympus camera's viewfinder?

Hi all I have an Olympus EM 10 and I have an issue with strange colours when I take a picture. The blue sky for example is bright orange. The pictures are fine though it's just the viewfinder and the ...