25 votes

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

There is no hardware solution, short of some crazy* arrangement of mirrors to extend the actual optical distance. That's because perspective distortion solely related to distance, but there might be a ...
mattdm's user avatar
  • 143k
12 votes

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

Classic standards have always been more like 2 meters Minimum distance for portraits. 3 meters is common in professional studios, for even better perspective. Too little distance (like 1 meter) will ...
WayneF's user avatar
  • 12.9k
9 votes
Accepted

Both my camera (Canon 6D mkII) and my raw processing app (Lightroom) can do "Lens aberration correction". Which should I use?

These features affect only the JPEG generated in-camera. For RAW processing, you can achieve the same results in Canon's DPP. Or use LR.
ths's user avatar
  • 7,171
8 votes
Accepted

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

RawTherapee, darktable, and other programs use lensfun for lens correction. If your lens appears to be absent from the database... Check the Lensfun coverage ...
xiota's user avatar
  • 27k
8 votes
Accepted

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

Unfortunately, as of right now, darktable doesn't have a very good way of doing ad hoc distortion correction for a lens you don't have a lensfun profile for. The following is a dirty hack that may be ...
junkyardsparkle's user avatar
6 votes
Accepted

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

Many modern digital cameras are designed with the expectation that lens compromises will be... de-compromised... in RAW processing. That appears to be the case here. The preview image is based on the ...
mattdm's user avatar
  • 143k
6 votes

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

Even I had experienced similar problems while shooting night sky photos and later stacking them together although not as apparent of a moire pattern as you have. after a bit of troubleshooting, I ...
Ashwin R Pillai's user avatar
5 votes

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

Since the cloth is white, and the other colour is black, you could simply desaturate( remove all saturation) at whole region of cloth. I've done the same multiple times
nacfoto's user avatar
  • 106
5 votes

Why don't smartphone cameras correct pincushion distortion automatically?

What you are describing are fundamental phenomena. The first phenomena illustrated with photograph of a ball and partially with a group photograph of people is resulting from incorrect viewing of the ...
Euri Pinhollow's user avatar
4 votes
Accepted

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

The EOS Lens registration data is intended to be used by either: The camera when processing the raw data from the sensor to produce a jpeg image (or to produce a jpeg preview image when the file is ...
Michael C's user avatar
  • 175k
4 votes

Night Photography Moire - Nikon D810

I solved the mystery! I shoot RAW, edit in Lightroom, and export to JPEG. In LR I normally check "Enable Profile Corrections" under Lens Corrections. When I unchecked this box, the photo exported ...
J Kaiser's user avatar
  • 111
3 votes

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

Missing lenses are probably added in the latest version of lensfun. The problem is that lensfun don't get updates via the packet manager. To update the database you ...
Yui's user avatar
  • 31
3 votes

Distance-creating "lens"?

Increasing the apparent distance between camera and subject by using mirrors, as described in the question, cannot be done reasonably within a lens. However, mirrors can be used to increase apparent ...
xiota's user avatar
  • 27k
3 votes
Accepted

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

You might be confusing "distortion" with "perspective". Remember, 50mm lens stays 50mm lens on D7200, just the field of view changes. When shooting too close (I think about ~0.5-1m) you might see that ...
aaaaa says reinstate Monica's user avatar
3 votes

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

It is only a very slight over-simplification to describe lateral chromatic aberration as the situation in which different colours produce pictures of slightly different sizes. Seen in that light, it's ...
user51005's user avatar
3 votes

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

On Windows, they can be found at: X:\Program Files\Adobe\Adobe Lightroom\Resources\LensProfiles\ On Mac, they should be here: ...
vladko13's user avatar
3 votes
Accepted

Does the Canon T7i apply lens correction options to raw format images?

The reason Lens Correction exists in processing software is that RAW is raw (as the name implies). Contrary to JPG, a RAW is not meant to be displayed but rather processed. See this informative topic ...
jihems's user avatar
  • 710
3 votes

Both my camera (Canon 6D mkII) and my raw processing app (Lightroom) can do "Lens aberration correction". Which should I use?

Which is generally preferred? How does enabling this feature in the camera affect the RAW file that gets generated, and can RAW image managers detect that the camera has already applied a correction? ...
Michael C's user avatar
  • 175k
2 votes

Night Photography Moire - Nikon D810

While I don't have an answer that I like, I can share my technique for dealing with this problem. I have the same setup. It's not Lightroom, it's that for what you are wanting to do, long exposures ...
Michael Holden's user avatar
2 votes

Darktable lens correction doesn't find lens automatically

I've only seen failure to choose because the database is out of date. Try updating the lensfun database, e.g. sudo lensfun-update-data. Do look at the ...
Calyth's user avatar
  • 812
2 votes
Accepted

Peripheral illumination correction value

The scale of 0 to 120 is a percentage value. At 100% the amount of correction should in theory be exactly enough to equalize brightness across the entire field of view if the photograph was taken of a ...
Michael C's user avatar
  • 175k
2 votes

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

To correct vignetting and color cast, I use RawTherapee with flat-field correction. For each lens and each aperture, I take a white picture by photographing against the sky with a white tissue or ...
Günther's user avatar
2 votes

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

Try taking a picture of an evenly lit white background - it doesn't have to be in focus (and might possibly be better with MF set to your usual subject distance, in case the effect changes with focal ...
JerryTheC's user avatar
  • 3,023
2 votes

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

More likely you are seeing an error as to perspective. If you work in too close, the nose reproduces too large and the ears too small. Such facial modifications will be seen by the client even if they ...
Alan Marcus's user avatar
  • 39.2k
2 votes

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

Most lenses exhibit some distortion, barrel or pincushion. Some modern cameras, like yours, automatically correct for this in-camera when creating the JPEG image. In turn, camera producers skimp on ...
ths's user avatar
  • 7,171
2 votes

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

The lens type in Exif may not be mapped to a usable lens name by the software you're using. In the case of darktable, this depends on exiv2, which may not have this ...
junkyardsparkle's user avatar
2 votes

Distance-creating "lens"?

If you do a simple thought experiment about how your location in space affects the way things look (eg. how perspective makes things close to you look bigger), Imagine a wall (in black) in front of a ...
GoodQuestions's user avatar
2 votes

Distance-creating "lens"?

Every "bathroom mirror selfie" ever taken uses such a mirror. By holding the camera three feet from a mirror the user places an optical distance of six feet between themselves and the camera they are ...
Michael C's user avatar
  • 175k
2 votes

Distance-creating "lens"?

to be of practical benefit it probably needs to be fairly long and/or have a few more loops but I didn't want the ASCII art to get any more unwieldy. This is the crux of the problem — it wouldn't ...
mattdm's user avatar
  • 143k
2 votes

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

For raw images, the preview you see on the back of the camera is based on the jpeg preview created and attached to each raw image. For jpeg images it is often also a scaled down version of the jpeg ...
Michael C's user avatar
  • 175k

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