Nidelva river through Trondheim Norway

Nidelva river through Trondheim Norway
by Saaru Lindestokke                

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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 ...

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3answers
706 views

What is Chromatic Aberration?

What is Chromatic Aberration? Is it a physical part of the lens, or just an optical illusion?
14
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6answers
2k views

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. Here's an example: (Here is the full size, 18mp ...
14
votes
4answers
690 views

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 ...
12
votes
9answers
4k views

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, ...
12
votes
3answers
825 views

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 ...
11
votes
3answers
578 views

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 ...
10
votes
3answers
3k views

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 ...
10
votes
1answer
2k views

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 ...
8
votes
1answer
4k views

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 ...
8
votes
3answers
892 views

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 ...
7
votes
6answers
292 views

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 ...
7
votes
2answers
2k views

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 ...
6
votes
2answers
2k views

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 ...
6
votes
0answers
437 views

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?
5
votes
2answers
472 views

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 ...
5
votes
2answers
215 views

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 ...
4
votes
2answers
2k views

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 ...
4
votes
3answers
2k views

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 ...
4
votes
2answers
128 views

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 ...
4
votes
2answers
415 views

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 ...
4
votes
3answers
74 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 ...
4
votes
2answers
311 views

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 ...
3
votes
6answers
703 views

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 ...
3
votes
3answers
673 views

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 ...
3
votes
2answers
301 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 ...
3
votes
3answers
2k views

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) ...
2
votes
5answers
887 views

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 ...
2
votes
1answer
57 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 ...
2
votes
2answers
133 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?
2
votes
1answer
243 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.
2
votes
1answer
130 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 ...
2
votes
2answers
386 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 ...
2
votes
2answers
182 views

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 ...
2
votes
2answers
583 views

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 ...
2
votes
1answer
127 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 ...
2
votes
2answers
184 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 ...
1
vote
2answers
90 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 ...
1
vote
1answer
51 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 ...
1
vote
2answers
80 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 ...
1
vote
2answers
99 views

Is lens stacking/reversing correction possible?

It happened that I shot a some photos in the "Macro/Micro field" by using both: Stacked lens technique Reverse-lens technique Assuming I wanted to correct lens distortion and chromatic aberration ...
1
vote
1answer
150 views

How to remove unwanted colors in picture? [duplicate]

I took product photos for my company and am currently editing them. However, some of the white parts of the shirt look a little odd zoomed out. When I zoom in, I see the following: I'd like to ...
1
vote
1answer
298 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 ...
1
vote
1answer
291 views

What is causing this (purple and green) color aberration? [duplicate]

I would like to know where this color aberration comes from in my pictures, so that I can avoid it wherever possible. Here is a picture I took in the sunny afternoon with my 50mm 1.4G (nikkor) wide ...
0
votes
1answer
200 views

Remove violet glowing effect [duplicate]

I'm taking simple product photo on white background with two softboxes on sides. On some products (especially white), I get strange blue-violet glowing effect on edges: Link to larger image Anyone ...