Questions tagged [chromatic-aberration]

In optics, chromatic aberration (CA, also called achromatism or chromatic distortion) is a type of distortion in which there is a failure of a lens to focus all colors to the same convergence point. It occurs because lenses have a different refractive index for different wavelengths of light (the dispersion of the lens). The refractive index decreases with increasing wavelength.

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What is Chromatic Aberration?

What is Chromatic Aberration? Is it a physical part of the lens, or just an optical illusion?
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Why are digital cameras said to suffer more from chromatic aberration than film cameras?

What makes digital cameras more prone to suffer from chromatic aberration than film cameras? I've read this at many websites, but the explanations differ, from what I think less credible explantions ...
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Is it a bad idea to activate lens-corrections in camera, when also use lens-correction in Lightroom?

My EOS has the option to correct known lens-aberration which is activated at the moment. I use Lightroom (5.2) for post-processing, which can also correct lens-aberration. Is it a problem to ...
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Is there an easy way to force chromatic aberration?

A couple of months ago I was playing with my camera and a magnifying glass and I noticed that this glass produced a very soft chromatic aberration. Although the effect was pretty cool, I couldn't ...
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Do convex lenses make parallel light rays of different wavelength converge to different points?

I'm starting to study cameras and lenses. By reading explanations and watching videos on convex lenses, I learnt that they make parallel light rays converge to a single point called the focal point. ...
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9answers
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Photographic techniques to avoid chromatic aberration?

I've read several informations here on Photo SE, as well as the wikipedia article on CA. I understand that it is inevitable that some amount of chromatic aberration shows up for a particular lens, ...
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Why does this satellite image of an airplane in motion show red, green, and blue bands with strange artifacts?

I stumbled upon this satellite image (http://goo.gl/Wv503u) capturing a plane in flight over a city. I'm having a little trouble explaining the color effects caused by the aircraft motion. What I ...
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Different colors of light are disrupting my focus. What lens feature minimizes this?

I took this photo with a Canon 50mm compact macro lens & Canon "life size converter", and it looked somewhat fuzzy. After separating out the RGB channels, it seems evident that the different ...
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What is the blue halo around objects when using a teleconverter? [duplicate]

This afternoon, I went out to take some pictures using a ZEISS Tele-Tessar T 300mm f/4 Lens, with a Tamron x2 Teleconverter adapted to a Sony alpha 6000. Unfortunately, I have been noticing an ...
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How to fix chromatic aberration with free software?

Here is a zoomed-in example of an image I shot that has a bit of discoloration due to the chromatic aberration of the lens. What's the easiest way to fix this problem using only free software such ...
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How do I use the Chromatic Aberration correction tools in Lightroom?

When I upgraded from a 1000D to a 550D, my 18-55mm started to show more significant Chromatic Aberration. This is probably due to the 8mpx difference between the two cameras. Due to this, I've ...
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1answer
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What is this red/blue effect called?

I was wondering what's the name of the effect in this photograph. I've heard of Chromatic Aberration, but I'm not really sure. In any case, is it possible to reproduce this kind of effect (without ...
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Is it technically possible to build a camera body to correct for lens defects?

Most lenses tend to be expensive because the lens needs to be very complicated in order to correct for various optical effects (aberration, etc). Is it possible to build a sensor and processor ...
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How can chromatic aberration be corrected within Photoshop?

I know there are many tools that correct chromatic aberration like Lightroom, Capture One and even Photoshop camera raw, but I would like to remove it manually within Photoshop (no plug ins etc) -how ...
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Canon DSLR Lens Correction

In Canon DSLRs there is an option to automatically correct Lens Vignetting and Color Fringing. When enabling this option, would it still be necessary to enable lens correction in LR4/Photoshop? If not,...
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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,...
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How do I avoid getting any chromatic aberration in my photographs?

Another question is how to correct it (suggested in proposals), but ... are there ways of avoiding it in the first place?
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How do I photograph water without catching glare from sun?

For fun, I have been trying to photograph a small, fast-moving creek near my house, and I cannot figure out how to take a picture of the creek in good lighting without it reflecting the sun and ...
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Where do these “redshifts” and “blueshifts” come from?

I make many product photos for the company I work for. For this I use Canon 400D with two external flash devices Walimex CY-600K. I've noticed an interesting effect on many of the photos I take with ...
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1answer
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Does chromatic aberration affect BW images?

In theory having different wavelengths converge at different locations should affect the luminosity and blur high-contrast edges or create ghost-like images of them, in practice however it seems that ...
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What causes longitudinal chromatic aberration on Nikon 50mm f/1.4D?

I have looked on my new 50mm lens photo (I have Nikon D90) and I see "purple fringing" around the unfocused objects (longitudinal chromatic aberration). What's is going on? Is it common for this lens (...
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Why does Lightroom 4 not have chromatic aberration sliders?

I've upgraded to version 4 and so far so good until I was to correct the chromatic aberration in one photo. I like to shoot wide open with my normal lens and the Canon 50mm f1.4 produces significant ...
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Chromatic aberration or lighting problem?

Over the weekend I went over to a photography shop, and they let me bolt various lenses to my SLR, including some seriously expensive ones. I took a few pictures, and was impressed. But when I got ...
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Which raw processors interpret distortion/CA correction from Micro Four Thirds cameras?

I've been thinking about Micro Four Thirds, which in many cases encodes distortion and chromatic aberration correction into the raw files. But, the raw processor I currently use (Bibble) ignores this ...
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Fixing chromatic aberration automatically with software

I am trying to fix chromatic aberration in images taken with wide lens industrial cameras. Searching the internet I didn't find a good software to do so. I tried Hugin and a few others, but without ...
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6answers
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Is high Chromatic Abberation typical with the Pentax f/1.8 50mm lens?

I recently bought a Pentax K-50 in a set with two lenses (18-55 & 50-200) as well as a 50mm fixed focal length lens. The camera is great but I am extremly disappointed in the lenses. Two out of ...
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How to minimize/avoid purple fringing before/during shooting?

I know it is possible to avoid purple fringing using post-processing software's chromatic aberration correction capabilities but I have a few pictures where the one I'm using (Rawtherapee on Linux) ...
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8answers
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How to fix bright sky behind trees bleeding into leaves?

I shoot mostly landscapes and am often annoyed when bright sky bleeds into the leaf silhouettes. Would a graduated filter help? Any other ideas? I have had this problem with my D90, Gf1 and now ...
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4answers
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What is causing this discoloration of water droplets in bright sunlight?

When shooting whitewater with the NEX-5n, I have noticed an artifact where the surface water reflections are colored purple. The strange thing is, it occurs 90% of the time, but some photos (even ...
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2answers
995 views

Weird rainbow colored chromatic aberration

This is some weird chromatic aberration that I'm seeing with my Canon 6D with a 24-105mm IS f/4L lens. The first picture is where the sun is setting to my right. The second example is where the sun is ...
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5answers
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How can I avoid those pink/purple lines in my portrait photos?

In my portrait photos, these pink/purple lines are appearing, usually on the edges. I am using Nikon D3300 with a 50mm lens. Why are they appearing, and how can I avoid them? Camera Make : ...
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1answer
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Is this chromatic aberration?

I'm testing the Nikkor 105mm 𝑓/2.8G lens and noticed a strange thing on a photo which looks like chromatic aberration. Here's a small fragment of the photo showing the phenomenon: Click/tap on the ...
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2answers
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Why is chromatic abberation correction disabled by default in a Canon 700D?

I have a Canon 700d with a supported lens (24mm EF-S) Peripheral illumination is ON in the camera menu, but chromatic abberation fix is OFF. Why is that? Why would I ever want it off? Or to put it ...
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5answers
291 views

Why is low chromatic aberration considered important in the digital era?

I have read many lens reviews. It seems that low chromatic aberration is considered an important property of lenses. However, film is a dead dinosaur today. Practically everyone is using digital ...
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2answers
338 views

Is it chromatic aberration? [duplicate]

I got green ghost-like lights. Where do they come from? How could I avoid them while shooting? How can I remove it in post processing? I tried using Lightroom chromatic aberration correction ...
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1answer
89 views

Does chromatic aberration always have the colours displaced in the same way or does it depend on the lens?

I'm needing to match some 3d stuff to some 4k video, so a little chromatic aberration wouldn't be out of place. However, due to the way I've learned to do it (scale one of the colour channels), I just ...
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2answers
187 views

Is the weird red and yellow patch near the center of my photo chromatic aberration?

I found this weird red and yellow thing in this shot taken using an EOS Rebel 1200D and the lens that came with it. It looks surprisingly good; how can I control and replicate these effects?
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1answer
479 views

How do I remove the green and purple fringing from the B&W blouse in this photo?

How can I remove green and purple colors from this photo? In Lightroom, I tried the 'Remove Chromatic Aberration' option but it doesn't help.
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1answer
387 views

What causes color imbalance, and how does it relate to chromatic aberration?

I am trying to figure out how color balance and chromatic aberration are different and related. It seems to me chromatic aberration is caused by the lens operating differently on lights of different ...
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2answers
809 views

Why does Lightroom disable chromatic abberation correction by default?

Why is chromatic aberration correction disabled in Lightroom by default? In my opinion, it is the feature that has to be applied always. This is also what most (to my knowledge) built-in camera JPG ...
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2answers
692 views

Why does this camera generated JPEG look better than the software generated one? [duplicate]

I was post-processing some photos on Nikon's Capture NX-D I had taken during holidays with a B700 camera and noticed some chromatic aberration in a picture. When I compared the post-processed photo ...
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2answers
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Is there a program for removing purple fringing for Ubuntu?

Some of my photos taken in bright daylight with film era lenses show purple fringing. To remove it I have tried: Bibble 5, does not seem to have any way of doing this. I used the hue-saturation ...
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1answer
183 views

Chromatic abberation or surface effect? (macro of dime)

I took the linked photo of a dime with a D5100 and a reversed lens combination lit by a table lamp. It is at 100 ISO where the D5100 shows no chroma noise. The burnished metal surface shows a weird ...
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1answer
329 views

Can the Sony A55 software-correct lens aberrations like the Panasonic GH2 does?

Panasonic GH2 automatically corrects lens geometric distortion and chromatic aberration. If I understand it right, it always applies this correction just after reading from the sensor — so the image ...
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2answers
264 views

Is lens geometric distortion, chromatic aberration and light fall off still as much of an issue? [duplicate]

I saw an earlier question (Why prefer the 18-55mm and 55-250mm lenses vs 18-200mm?) that mentioned lower quality lenses have distortion, aberration and light fall off issues. Has software like Adobe ...
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3answers
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Vertical chromatic aberration, fixable?

In this photograph, which is a 4-layer stack of just the central area, I left the front & back soft intentionally. It has quite a strong area of what I can only call 'vertical chromatic ...
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1answer
92 views

Couldn't remove this chromatic aberration [duplicate]

I noticed a purple-ish outline around my photo, however, I couldn't remove it through the Lightroom Defringe option. I have tried the fringe selector and playing around with the slider, nothing seems ...
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1answer
174 views

What causes blue and red gradient/shade around black spots in photos? [duplicate]

Right now I'm trying to improve the sharpness of my photos, and for that I've checking if my D7000 has some autofocus issues. Therefore I tested my 35mm f/1.8G and my 50mm f/1.4G. I figured that the ...
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1answer
2k views

What does Canon digital lens optimizer (DLO) do exactly?

Recent Canon cameras (example: EOS RP) have a function called Digital Lens Optimizer (DLO). The Canon Digital Photo Professional (DPP) software also has the same DLO feature. Apparently, DLO is ...
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2answers
336 views

How does lateral chromatic aberration correction without a lens profile work?

Many different software (including Lightroom) can correct lateral chromatic aberration without having a special profile for the lens. How is the correction done? Adobe's method for doing it when a ...