Questions tagged [color]

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.

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29 views

Color spectrometer: Can I use a RAL K7 color fan as reference?

I bought a used eye-one Pro spectrometer (without UV filter, calibration expired 2016) and wanted to check if it is working as intended. I also happen to have a RAL K7 color fan. It seems like ...
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What causes the fake colors of stars on these pictures?

About two years ago I was at a spot with a beautiful night sky with no moon so I tried to get some pictures of the sky. I wasn't well equipped back then, I had a 35mm f1.8 lens and Nikon D50. I didn't ...
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When soft proofing, why does the image change between relative and perceptual intent when there are no colours out of gamut?

My understanding is that relative intent just clips the out of gamut colours and that perceptual intent scales (compresses?) the colours to make the out of gamut colours fit. It seems to me there is ...
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203 views

Nikon DSLR - settings to compare colors

I want to compare two lenses in terms of how they render color and contrast. To do this I want to take the exact same picture with both lenses. What settings do I have to set such that the camera does ...
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Why does the NEOWISE comet appear green on my photos?

Last night, I took some pictures of the NEOWISE comet. To my surprise, the comet has a greenish colour on all of them, e.g. this one which I've enlarged a bit: (click to show the original image) When ...
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Color regrading/correction/calibration between photos for scientific color analysis using in-image palette

This question is not quite in the same vein as artistic photography but I feel that this StackExchange is best suited to answering the question. Closest questions I could find for further reading ...
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91 views

Can an RGB channel be shifted to increase color gamut into the violet range?

TL;DR: Can additive RGB color gamuts produce the perception of light that has a shorter wavelength than the Blue component? If not, does shortening the wavelength of the shortest component of a 3-...
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low element count primes render better than high element count zooms? Which image is which?

I was told that prime lenses with low element counts have the potential to produce better colors and greater contrast than lenses with many many elements inside. I was told primes mostly 'render' ...
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film recommendation for Mamiya 645 AFD, landscapes

I've recently purchased a Mamiya 645 AFD with both 80mm ƒ/2.8 and 45mm ƒ/2.8 lenses and I'm looking forward to dipping my toes in the medium format (only the pinkies could fit in my current digital ...
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85 views

Which color model to use while editing photos? RGB? Or some else?

I want to shoot few photos using smartphone. Nature, landscapes. From smartphone I will receive JPEGs, RGB. I will trasfer them to computer. Next step I will convert them to TIFFs. Next step I will ...
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166 views

Can I use “sRGB mode” or a manufacturer's ICC-profile as a poor substitute for hardware calibration?

I have no colourimeter to perform hardware calibration, but while editing some pictures I still would like to be able to get the colours appear at least slightly truthful. I know that every monitor ...
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How do you keep white balance from killing the color?

I first noticed this when I used one push white balance in Hxr-Mc2500 sitting on a fluid head. I used a piece of A4 paper for WB reference and the lighting of the incandescent bulbs became weird white ...
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112 views

Photos for blog. Color depth more than 16,7 Million color variations (24 BitsPerPixel)

I want to use photos for blog. Nature, landscapes, fitnes. I use photos which have 16,7 Million color variations (24 BitsPerPixel) now. Is it possible to use photos which have color depth more than ...
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177 views

Is cyan brighter than red?

I'm not sure if this is on topic, but here goes. Cyan in RGB is (00, FF, FF). Red (or green or blue) is this (FF, 00, 00). So this seems like if I tell my monitor to display cyan, each pixel will ...
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103 views

Output panorama shows color shift wrt input image [Hugin]

I'm using Hugin to create a panorama of a countryside vista. I have three input images to create the panorama. The three images were shot in RAW, same camera settings for all three images, and ...
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86 views

Poor man's way to determine the color of an object with filters?

I know that expensive instruments can be used to determine the color of an object, but is there a poor man's way to determine color using filters? By "determine color" I mean know the relative ...
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287 views

What technique did Scott Mutter use in his famous photomontage “Untitled (Library)”, and what meaning does that approach help convey?

I really like this photo by Scott Mutter so I was want to know about the techniques used.
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Techniques and meaning in László Moholy-Nagy photo

This image below is called the Funkturm Berlin (Berlin Radio Tower) and is taken by László Moholy-Nagy. I have done so research but haven't found much. I was wanting to know the techniques used in ...
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Color negatives came out blank

I'm new to film photography and since I've started i have developed my film on my own using the Caffenol recipe. I have developed some film Rolls with success but this time the film came out ...
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121 views

Physical luminance and the CIE XYZ color space

In reading up on the XYZ color space you regularly come across something to the effect that "Y is taken as the luminance" or "relative luminance" whether it be for the XYZ color space or in xyY. I'm ...
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Color filters that correspond to Macbeth chart colors

I'm curious if anyone knows of a set of color filters that correspond to the standard Macbeth chart colors. In theory I should be able to use a filter with a transmission spectra curve identical to ...
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83 views

Color calibration for a far away target

I'm curious if anyone has any ideas of how to perform color calibration for very far targets (~ a mile or so). My concern is that the spd of the illuminant will be different at the camera so using a ...
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1answer
125 views

How to clean stains from 35mm color negative film? [duplicate]

I developed colour negative film for the first time yesterday and I have two problems. Firstly many of the pictures have these stains like circles on them and I cannot understand what caused them and ...
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1answer
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How to calculate the ISO of colour negative film

I've read about the process in Kodak's publication 'Basic Photographic Sensitometry Workbook'. My understanding of the process for black and white film, using their example, is that you: Find the ...
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1answer
103 views

Why some pictures appear in Facebook with three coloured bands?

This is not a single occurrence, it's also not limited to a single user. Every now and then I see pictures like this on Facebook: And this: What went wrong here? Picture cropped for privacy ...
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How exactly does “lightness” function with regards to the chromaticity diagram?

Seeing as there isn't a colourimetry stackexchange, I'm asking here where a number of useful colourimetry topics have already been posted. A number of excellent resources exist with regards to the ...
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1answer
159 views

Why does Lightroom not have a cyan-red slider for color correction?

They have color correction sliders for yellow-blue and green-magenta but not for red-cyan, unlike in Photoshop. It is really annoying to go into Photoshop when I need to make those simple adjustments -...
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290 views

How do 35mm film scanners deal with the film base color?

I want to build a jig to scan 35mm film using my digital camera (something similar to https://www.thingiverse.com/thing:2789457 or http://www.frogymandias.org/3-d/index.html). I have seen several ...
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1answer
94 views

Is there a category name for pictures where an object fills a relatively small part of the frame against a bold, single-color background?

I am a web developer whose knowledge about photography is very limited. I am trying to find keywords to search for more pictures like the following. where there is a picture of an object with pure ...
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Troubleshooting developing Portra 800

I just performed a shoot with a single roll of Portra 800, new from amazon, in date. Developed using correct times with replenished fuji C-41 chemistry in a jobo 1500 tank. I metered the film at ISO ...
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I made a profile with Colorchecker Camera Calibration software. How to import the .icm file for use in Camera Raw?

I used the Colorchecker Camera Calibration software with a TIFF photo of the Colorchecker I did with my camera. This software detected the Colorchecker successfully and produced a .icm file as output. ...
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How to use a Xrite Colorchecker on a specific image to get the right colors?

I installed a setup, and I shot three photos with the same f/1.7 1/100s ISO100 condition: A.jpg (download link): Colorchecker alone B.jpg: Colorchecker + object C.jpg: the final object I'm ...
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Are LED Panels/Lightboxes intended for “animation” usable for photographic purposes?

LED Panels that are described as intended for animation drawing tend to be a quarter of the price of such panels that are explicitly intended for photography work (macro lighting, slide viewing and ...
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183 views

How to achieve this light faded, desaturated look?

how can I achieve this look, as seen in photos by Simone Favilli? I love the soft light effect and colours of this image but I don't know how to achieve it in Post-processing. Any suggestions? Thanks ...
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308 views

Monochrome filter effect on color film?

I recently an old Canon O1 orange filter. According to the pamphlet on the filter, it says it works on monochrome film with a filter factor of 3x. What effect would this filter give me on color film? ...
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137 views

Does photoshop really use 15 bit?

I have come across this answer https://photo.stackexchange.com/a/110776/78408 It says Adobe photosohp uses 15 bits thus Converts 16 bit images to 15 images. Is it true? Why? Which versions are ...
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What makes these white stars appear black?

This is partial screenshot from an episode of the TV (Netflix) show Daredevil (season 2, episode 7): Note how the normally white stars of the US flag are showing up as black - albeit quite out of ...
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159 views

Is it just me, or do smartphone cameras not have any chromatic aberations at all?

To this day I have failed to spot any color artifacts in smartphone photos. Either Nokia N8 phone on a camera or my old Vibe P1 Turbo and even the G7102 I have (Which has glare towards the edges) Is ...
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Why photos are not vibrant by default in Nikon?

Recently I attended a photography workshop where beginners like me participated. Few participants had Canon 1500D and Canon 80D. I have Nikon D5600. We clicked butterfly photos. I noticed, Nikon ...
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338 views

How do I cope with haze for the photos containing sky and trees at a distance?

I'm always struggling with photos which contain large zones with trees situated far away from the camera. Haze and pollution cause severe changes in colors, which means that the trees lose their ...
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319 views

Same sRGB image different colors in Lightroom, Windows, Web and Android

recently I've started having troubles with my image colors. The same image (sRGB) looks different in Lightroom, Windows, and Android. I import my photos that were shot on Fujifilm X-T3 in raw (.RAF) ...
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1answer
246 views

Why do pure colors (red/green/blue) become a mixture of colors when converting raw?

In trying to understand how raw is converted, I created a synthetic raw image that has a red, green and blue gradient strip, with a gamma of 2.2 (dng). I made the synthetic raw by converting an image ...
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207 views

Does white balance change from lens to lens? [duplicate]

Does white balance change from lens to lens? Though I think it does not, the reason I ask is auto white balance with a wide-angle lens seems to be different from auto white balance with a macro lens. ...
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171 views

Is there an better than Adobe RGB monitor?

All monitors I see claim 99 percent of the Adobe RGB and that's it Is there something better? We are seeing 14 bit HDR televisions these day which uses 14 bit altough I am not sure what exactly they ...
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Is it possible to make an monitor that can output colors perfectly? [closed]

We have come from long way from my rather bad IBM E74 monitor with terrible color reproduction to the brand new monitors with 14 Bit HDR. But will we ever see an monitor that can output colors that ...
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How did color spaces get their names?

Why RGB instead of BGR, GBR or perhaps GRB? Why CMYK instead of YMCK, KMCY, CKMY, YKMC and etc?
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How to smooth gradient of an overexposed sky on a raw file?

I'm editing a back-lighted portrait. Sky backwards it's mostly overexposed, but some information was preserved on the upper left corner of the frame. I shooted on both JPG and RAW (canon's CR2) This ...
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1answer
99 views

Why does the yellow colour on these lighted signs look a bit unsaturated?

I cropped the image to show the interesting part, it's ok it's not in focus. I realized that the yellow colour is more saturated in reality than in the photograph. I'm not sure why that is. Example ...
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What does SaturatedOpacity mean in Rawtherapee?

When checking differences between Rawtherapee .pp3 profiles, I noticed a SaturatedOpacity parameter under [ColorToning], either equal to 0 or 1, and likely set by the white balance point tool. I may ...
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825 views

How would I construct the CIE Yxy diagram? [closed]

It seems most references showing a CIE Yxy diagram can be reduced to very few (one?) sources. If I wanted to construct the diagram myself from some published measurement values, how would I do it? I'...

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