Alley in Pisa, Italy

by Lars Kotthoff

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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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2answers
995 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 ...
5
votes
2answers
1k 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 ...
3
votes
2answers
92 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 ...
4
votes
1answer
194 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 ...
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votes
1answer
85 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 ...
9
votes
3answers
259 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 ...
1
vote
2answers
129 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 ...
12
votes
2answers
249 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 ...
1
vote
1answer
105 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 ...
1
vote
1answer
149 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 ...
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vote
5answers
520 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 ...
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7answers
3k 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, ...
6
votes
2answers
1k 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 ...
3
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 ...
2
votes
3answers
478 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 ...
4
votes
2answers
316 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 ...
13
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3answers
468 views

What is Chromatic Aberration?

What is Chromatic Aberration? Is it a physical part of the lens, or just an optical illusion?
3
votes
2answers
201 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 ...
7
votes
6answers
230 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 ...
14
votes
6answers
1k 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 ...
7
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 ...
1
vote
1answer
255 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 ...
7
votes
1answer
2k 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 ...
4
votes
2answers
360 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 ...
6
votes
0answers
353 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?