Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [lens-correction]

The tag has no usage guidance.

0
votes
1answer
43 views

Use Canon DPP only to correct lens for my Powershot G7X Mark II and export RAW [duplicate]

I recently bought a Canon Powershot G7X Mark II. I am using Linux and I found darktable to be a decent photo editor. However, my RAW pictures come with a distortion which darkens the corners and ...
1
vote
1answer
320 views

Lens correction in darktable when my lens isn't known?

I took some raw (CR2) photos with the Canon Powershot G5 X and want to edit them in darktable. The focal length is quite low and the distortion high. My Problem: I want to correct the distortion and ...
2
votes
1answer
156 views

Why doesn't UFRaw automatically find the lens profile for one of my lenses, even though it's in the database?

When I open a raw image, made with a Canon EOS 600D, UFRaw for some lenses does not automatically find the lens profile. This is an example where it does find the profile: From the EXIF information: ...
5
votes
4answers
259 views

Distance-creating “lens”?

On another recent question I noted that it's theoretically possible to take "short-range" pictures that have the perspective as if they were taken at a distance, by means of a system of mirrors: To ...
6
votes
2answers
3k views

How can I get headshot portraits with pleasing, natural perspective if I'm constrained to a short distance?

I know in a portrait photo we use distance between camera and the subject in such a way as to create a pleasing and hopefully natural-looking perspective. I think it's good on 1 ~ 1.5 meter to get a ...
6
votes
1answer
226 views

How to make lens correction data for Samsung S8 in Darktable?

I'd like to use the Lens Correction module in Darktable. My photos are taken with Samsung S8, and Darktable does not have the information about the lens in this phone. How can I add this information? ...
4
votes
4answers
613 views

How can I avoid vignetting when shooting in raw with a Canon Powershot?

Very inexperienced person here when it comes to photography and raw processing here. I'm using a Canon SX 60HS camera. No attachments — filter/hood/etc. — of any sort were attached to lens. After ...
2
votes
2answers
974 views

Darktable lens correction doesn't find lens automatically

I have been using darktable for sometime now on Debian. But after I re-install the operating system, darktable does not find my lens automatically. Instead I have to choose the lens manually every ...
1
vote
1answer
173 views

Peripheral illumination correction value

In Canon Digital Photo Professional one can apply Peripheral Illumination Correction if a profile for specific lens is available. The value is adjustable between 0 and 120. Did anyone figure out what ...
3
votes
4answers
619 views

How to remove vignetting and color cast from wide angle lens?

After shooting several images with the Samyang 12mm f/2 for mirrorless APS-C, I noticed it produces a quite strong color cast. It looks like green vignetting. As far as I know, this isn't uncommon for ...
0
votes
2answers
208 views

Can lens correction help distortion caused by getting too close for headshots?

I am using a Nikon 50mm 1.8D, but with an APS-C on a D7200, it gives me 75mm focal length. It's as sharp as a $700 85mm lens, and I paid $135 brand new for it. I am currently using this setup for ...
1
vote
1answer
1k views

How is the EOS Lens Registration application and data intended to be used?

I have a Canon 7D and recently found the EOS Lens Registration tool. I've used it to put the profiles of the lenses I own into the camera. That part all makes sense. What I'm more confused about is ...
1
vote
0answers
363 views

Where can I find Adobe Lens Correction Profile (.lcp) files for RawTherapee?

The latest versions of RawTherapee can apply corrections from Adobe Lens Correction Profile (.lcp) files, but where can these be found? I've tried Adobe's Lens Profile Downloader, but it doesn't list ...
6
votes
2answers
2k views

Where Can I Find Lens Correction Profile Files (for RawTherapee and Other Apps)?

RawTherapee can perform lens corrections provided it has access to the correct Lens Correction Profile (.lcp) file. These files are supposedly distributed with Adobe software, but even after ...
7
votes
6answers
779 views

Night Photography Moire - Nikon D810

I'm shooting with a Nikon 810, and my night shots often have a strong moire when I export them from Lightroom at 640x640 (optimized for Instagram). This photo was shot at f2.8, ISO 4000, 15 seconds ...
0
votes
2answers
781 views

Canon third party lens peripheral illumination correction

Is it possible (and if so how) to add data for a third party lens (Tamron 55-200mm) to a Canon 50D for peripheral illumination correction?
1
vote
2answers
249 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 ...
2
votes
1answer
417 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
4answers
5k views

Why don't smartphone cameras correct pincushion distortion automatically?

I've previously asked why the GoPro doesn't automatically correct for the fisheye distortion, and this question is related, but different: Given that smartphones have so much processing power ...
5
votes
2answers
2k views

Why does lens distortion correction in Capture One also crop?

I tried to get the answer on the official forum here but it was non-conclusive for me. I am trying with a more concise question here: When I import the RAW files from my Panasonic Lumix LX100 into ...
1
vote
4answers
25k views

Is distortion on an iPhone primarily due to perspective or does lens distortion play a part, and what can be done about it?

I am researching how to correct any facial distortions seen on an iPhone's front camera. Here is my current understanding of the issue: close-up photos will enlarge nearer facial features such as ...
5
votes
1answer
367 views

How to handle lens name mismatch between Darktable / exiv2 and Lensfun?

Darktable doesn't recognise my Panasonic 12-32mm pancake on my Olympus E-M10 due to a mismatch of the exif LensType and lensfun modelname. exiv2 -pt 20150824_0143.ORF | grep -ai lens Exif.OlympusEq....
4
votes
3answers
5k views

How to add lensfun 0.3.0 db to darktable on ubuntu?

I tried the approach suggested by Torsten Bronger in How do I add lens correction for my model+lens to Lensfun in Darktable? (extracting the xml files from 0.3.0 tar and overwriting in /usr/share/...
3
votes
1answer
3k views

How do I add lens correction for my model+lens to Lensfun in Darktable?

Camera: Olympus OMD EM-10 Lens: Olympus M.Zuiko Digital 14-42mm f/3.5-5.6 EZ Darktable: 1.4.2 My raw's are showing a lot of distortion with the above lens that I try to correct using the Lens ...
0
votes
2answers
558 views

Is light fall off corrected for in modern cameras?

Because of the way light is projected in a camera the image can be darkened near the edges. My questions is, do modern cameras attempt to correct for this light fall off? Description of the light ...
7
votes
1answer
463 views

Does Lightroom take sensor size into account when applying lens correction profiles?

I have a question about using the lightroom lens correction profiles for cameras other than full frame. I have been using a Tamron 24-70 which is known for having slight vignetting (full frame only) ...
2
votes
2answers
317 views

What does it mean, to copy a lens profile correction from one photo to another in lightroom?

As the title says, what happens when copying a "lens profile correction" setting from one photo to another in lightroom? Supposing I have two photos, one shot at 10mm, one shot at 20mm, both using ...
9
votes
2answers
620 views

Did film photography have lens correction counterparts?

Were there ever any tools to correct for lens distortion in the film-only era? I'm thinking a device that contained a lens system that you could alter, or a soft workable lens that you could fine tune,...
7
votes
2answers
349 views

Should I set the lens profile option in Lightroom If I already have the lens correction information on my Canon 6D?

I've a 6D with lens profile information for all my lenses. So when I process pictures from the camera in Lightroom do I need to set the lens profile option?
8
votes
1answer
23k views

Why doesn't my camera have lens corrections for my new lens?

I've been using a brand new Canon 5D Mark III (with the latest firmware v1.2.3) with some recent lenses (all older than the camera itself though), but most of them don't have any lens correction ...
2
votes
1answer
303 views

How many different focal lengths and apertures does a typical lens correction profile in Lightroom consist of?

Due to different distortion in lenses at different apertures and focal lengths different corrections have to be applied under different conditions when using Lightroom lens correction. I guess this is ...
0
votes
2answers
555 views

Do Lightroom lens correction profiles for Contax G lenses (e.g. 90/2.8) exist?

I recently acquired a used Contax G 90/2.8 Sonnar lens, which is an amazing piece of glass and was wondering did anyone make lens correction profiles for it?
16
votes
3answers
2k views

What causes and how can I avoid this moiré pattern in a composite night sky photograph?

I'm new to taking star trails, and fairly new to photography in general. After my first attempt at taking a star trail, I composited them in Photoshop and when I merged the layers I got this pattern ...
7
votes
2answers
5k views

How to force Lightroom to use a specific lens profile?

I use a Canon 6D and a Rokinon (Samyang/Bower) 14mm f/2.8 for some fun UWA shots. I had already downloaded a lens profile using Adobe Lens Profile Downloader to correct for the mustache distortion. ...
3
votes
4answers
309 views

What does lens correction in software actually correct to?

I understand what lens correction does, correcting vignetting, barrel/pin cushion distortion and other types of distortion, however I was wondering what the photo is corrected to? Vignetting is ...
1
vote
1answer
229 views

Does Microsoft ICE correct barrel distortion?

For a panorama, I created more than a hundred images with my Panasonic Lunix DMC FZ5, with 6mm focal length (35mm equivalent: 36mm). I want to import these images into ICE, to create a panorama. The ...
2
votes
1answer
1k views

Why does using Canon's Digital Lens Optimizer double the size of a RAW file?

In recent editions of Canon's Digital Photo Professional (beyond version 3.11.10 or later) a lens correction tool known as Digital Lens Optimizer (DLO) has been added. It uses Canon's own knowledge of ...
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 not,...
5
votes
4answers
2k views

what does lens correction in photo software do?

I shoot most of my pictures with a Sigma 17-50 F2.8 lens on my Canon 450D in RAW. And I process the RAWs in Canon's free software, DPP (Digital Photo Professional). This software has one feature ...
6
votes
3answers
12k 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
1answer
303 views

Is there a Lightroom lens correction profile for the Nikon Coolpix 995?

I have a bunch of old photos taken with a Nikon Coolpix 995 that I'm working with in Lightroom 3. The 995 had noticeable lens distortion particularly at the wideangle end. I've tried using Lightroom'...
17
votes
4answers
10k views

Are there any downsides to applying the lens correction profile in Adobe Lightroom?

Assuming that you are using a good lens profile, say one that Adobe has predefined in Lightroom, are there any downsides to automatically applying the appropriate lens correction profile when the ...
0
votes
2answers
274 views

How do I turn off lens correction in Lightroom 3?

I'm trying to improve Lightroom performance on my Mac and have read that turning off Lens Correction can help the "Loading" times in the develop module. I really don't care about lens correction and ...