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a lens defect which causes straight lines to be curved or bowed

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4
votes
5answers
3k views

Does sensor size affect lens distortion?

There was recently a video posted about how different focal lengths affect portrait photography, specifically how distortion at smaller focal lengths have more distortion and are less flattering. So ...
7
votes
1answer
394 views

What causes this bluish tint and other anomalies in this image?

I bought a Tamron CF Macro 28-70mm 3.5-4.5 lens on eBay for $35 AUD plus postage - cheap enough to give it a go and see what it's like. I took a range of photos with my Sony NEX-C3 to get a feel for ...
1
vote
2answers
196 views

Are there medium priced cameras that can capture photos with very little distortion?

I just got the Sony DSC-WX9 and DSC-HX100V a couple months ago, and found that, if a person's face is right in the center of the photo (for a photo with 4, 5 people standing, from head to toe), then ...
1
vote
1answer
261 views

What is the best way to take pictures for Panography style post-processing

I have recently started to play with Panography, which is a style of stitching pictures together, however on my first couple of attempts, quite a few of the pictures that I took were distorted towards ...
2
votes
1answer
1k views

Are Nikon Distortion Control Data firmware updates critical?

Nikon has released the Distortion control data upgrade for D90 and D5000 (I am an owner of Nikon D90). The Distortion Control Data firmware upgrade is available for Nikon D90 and D5000 cameras ...
2
votes
1answer
2k views

Auto cropping scanned document or photo

I usually take a picture of bill or receipt using my mobile phone and store it in a computer. Is there any desktop or Web-based software which can straighten the photo of a paper and flatten it? For ...
1
vote
0answers
171 views

Nikon D3100 transfer distorts photos [duplicate]

Possible Duplicate: Why do my images get distorted on my Nikon DSLR? I've been using this camera (Nikon D3100) for over a year and have absolutely no problems with it, until yesterday. When ...
24
votes
4answers
2k views

Do the Lightroom lens correction tools make good lenses less important?

Lightroom has Lens Correction tools such as Distortion, Vignetting, Chromatic Abberation, etc. depending on the brand and model of lens. Due to this feature, is it less relevant what the distortion ...
3
votes
3answers
7k views

Are there any free or better alternatives to Fisheye-Hemi?

I've been tempted to get a fisheye lens (The Nikon 10.5 DX specifically), and have seen the Fisheye-Hemi plugin for "normalizing" fisheye images. Does anyone have experience of using the plugin or ...
1
vote
2answers
1k views

Nikon 50mm f/1.8 D has less distortion than Nikon 50mm f/1.8 G?

Some of the Amazon reviews say that Nikon 50mm f/1.8 D has less distortion than Nikon 50mm f/1.8 G? The D is about $80 cheaper, is smaller, lighter, has less distortion, and has manual aperture ...
8
votes
1answer
2k views

How do straight edges end up curved in photos?

In the standard model for a lens straight lines in the subject of a photograph will always end up straight. However I have seen a variety of photographs in which straight lines end up being curved, ...
6
votes
1answer
851 views

What does “distortion <XX%” mean in lens specs?

I'm going to buy a lens and I would like to understand what "distortion <XX%" means. It's a vari-focal 10-60mm lens, and mentions distortion <12-1%. According to my understanding, at 10mm focal ...
4
votes
1answer
171 views

why close ups are too wide

I have been taking close up pictures for a while with no problem. I think I may have done something with the settings, because all of a sudden my closeups are distorted (wide). I have a sony cyber ...
0
votes
1answer
2k views

Is there any way to do lens correction in Adobe Photoshop 7?

I am walking through a tutorial for Photoshop but at one point they choose "Lens Correction" in the Filter --> Distort menu. I am on Photoshop 7 so I don't have this. Is there anyway to do lens ...
1
vote
2answers
851 views

Can I configure the D7000 to perform lens distortion corrections on the embedded JPEG in the RAWs it saves?

Lightroom eats the distortion present in the D7000's kit lens for lunch. However, it's time consuming to check which photos I like by performing this correction on all the photos in lightroom first. ...
7
votes
3answers
1k views

Is pincushion or barrel distortion really all that bad in a lens?

Given that software can pretty trivially fix pincushion and barrel distortion patterns if you're shooting in RAW (Lightroom did the right thing just by knowing what lens I used with the given EXIF ...
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 ...
10
votes
1answer
4k views

What are Barrel and Pincushion distortion and how are they corrected?

I have some questions regarding Barrel distortion and pincushion distortion. Since they are related I have put them in single post. I am aware that barrel distortion occurs more in wide-angle ...
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 ...
11
votes
4answers
7k views

How wide can a lens be before it begins to produce distortion?

Some lenses will produce distortion near a photo's edges (lines that should be straight begin to curve). Fisheye lenses definitely do this, and some ultra-wide lenses will do this too. I like wide ...
7
votes
8answers
5k views

Software to auto correct lens distortion based on photo

A photo contains digital information about the make of the camera the focal length,etc. Does any software use this information and auto correct the lens distortion in the photo. I know that Photoshop ...
1
vote
4answers
2k views

Seeking Mac Software Solution for Correcting Barrel Distortion

I have a Nikon D7000 and a 14-24 wide angle lens which I love, but it does result, often, in a great deal of barrel distortion. I'm seeking a software solution; ideally an Aperture plug-in, to ...
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 ...
13
votes
6answers
27k views

Why do images get “corrupted”?

I have had my Nikon D40 for a while, and some of the pictures are coming out distorted. Two examples are below: So my questions are: How do I fix them after the fact? - i.e. after they have been ...