topic Re: In-camera distortion correction in EOS DSLR & Mirrorless Cameras

In-camera distortion correction

michal — Tue, 21 Aug 2018 13:57:19 GMT

Hi!

Is it possible with canon itself or canon with magic lantern, to correct lens distortion in-camera, with no lightroom, no photoshop etc.? Yes, I am asking about distortion, not aberrations or vignetting.

Re: In-camera distortion correction

ebiggs1 — Tue, 21 Aug 2018 16:16:38 GMT

I know this isn't going to answer your question but I wouldn't want it in camera. Besides, I don't think Raw would support it anyway and I always shoot Raw. You should too and that means post editing like LR or PS. If you are concerned with lens correction you obviously want the best pictures you can get. Post editing is where its at.

I don't use ML and I don't recommend anybody else use it. Neither does Canon USA. JMHO as always but, perhaps the industry standard spokesman will chime in.

Re: In-camera distortion correction

kvbarkley — Tue, 21 Aug 2018 17:24:36 GMT

All new cameras, including my T6S, have this as an included feature.

I assume that you mean "chromatic" aberration.

Re: In-camera distortion correction

michal — Tue, 21 Aug 2018 19:48:13 GMT

kvbarkley,

I don't mean aberrations, as I said. I mean distortions, so barrel and pincushion - unwanted curvature of lines straight-to-be.

I always shoot RAW+JPEG and do a lot of post-pro with RAW but sometimes it would be nice to have straightened lines right from the camera, when I need to send them quickly. And nobody will manage to discourage me from using fantastic magic lantern 😄

Re: In-camera distortion correction

kvbarkley — Tue, 21 Aug 2018 20:28:24 GMT

And, as I said:

"All new cameras, including my T6S, have this as an included feature."

Re: In-camera distortion correction

michal — Wed, 22 Aug 2018 05:59:38 GMT

Can you please tell me, how canon calls this feature? Is it somewhere in the menu next to "chromatic aberration" and "peripheral illumination" correction?

My EOS 700D (or Rebel T5i, whatever) doesn't have such feature. I think they didn't change a lot in T6.

Re: In-camera distortion correction

kvbarkley — Wed, 22 Aug 2018 13:16:10 GMT

Why didn't you ask in the first place? Your T5i does not have this feature, my T6S does. If you had it it would be in the same place in the manual as the T5i. Here is the manual page for my T6S (Note they did not even change the heading on the page!):

Re: In-camera distortion correction

michal — Wed, 22 Aug 2018 14:24:27 GMT

Why do you talk to me as if I was a fool?

Anyways, thanks for enlightening me.

Ok, do you guys know if EOS 80D also have this feature?

Re: In-camera distortion correction

jrhoffman75 — Wed, 22 Aug 2018 14:27:38 GMT

Newer cameras provide for in-camera Digitial Lens Optimizer processing, but it is only applied to JPEG images. The tag is recorded in the RAW file, but only read by Canon DPP (since only DPP can download the data files from Canon website.)

https://snapshot.canon-asia.com/article/en/eos-5d-mark-iv-lens-aberration-correctiona-close-up-look-part-1

It also slows down burst shooting significantly since there is a lot of number crunching going on.

"Ok, do you guys know if EOS 80D also have this feature?"

You can go to the Canon website and see.

Re: In-camera distortion correction

shadowsports — Wed, 22 Aug 2018 14:35:53 GMT

Michal,

Your fellow users are happy to help and answer questions, (so am I) but product research is to a certain extent on you. Take a little ownership, dowload an 80D manual and look for the feature. We've given you the tools, now use them.

This is not ment to be harsh, but your question is like asking what the specs are of a particular model and then expecting someone else to look it up for you.

Some of the best lens correction is provided in post processing software, LR, PhotoLab, Affinity, etc. If you rely soley on in camera correction, you may be disappointed.

Welcome to the forums, hope to see more of you here.

Re: In-camera distortion correction

ebiggs1 — Wed, 22 Aug 2018 14:42:05 GMT

"~~Some of~~ the best lens correction is provided in post processing software, LR, ..."

Bingo! This is where it belongs and the fact Raw doesn't support it.

Re: In-camera distortion correction

kvbarkley — Wed, 22 Aug 2018 15:11:47 GMT

Sorry, no offense meant. If you would have asked "Does the T5i offer distortion correction" you would have had your answer in the first reply. Remember, we are users just like you.

Re: In-camera distortion correction

michal — Wed, 22 Aug 2018 17:52:54 GMT

Right, sorry, I sometimes write things faster than I think.

Thank you for your answers, I just checked the 80D's manual and it also has distortion correction 😄

And I'm aware that post-processing with a proper program will be better.

Re: In-camera distortion correction

richrf — Sun, 09 Dec 2018 00:49:59 GMT

@shadowsports wrote:
Michal,
Your fellow users are happy to help and answer questions, (so am I) but product research is to a certain extent on you. Take a little ownership, dowload an 80D manual and look for the feature. We've given you the tools, now use them.

This is not ment to be harsh, but your question is like asking what the specs are of a particular model and then expecting someone else to look it up for you.

Some of the best lens correction is provided in post processing software, LR, PhotoLab, Affinity, etc. If you rely soley on in camera correction, you may be disappointed.

Welcome to the forums, hope to see more of you here.

I'm really glad I came across this thread before I purchased the Canon T7i. I only shoot jpeg. I have no interest at all in any computer software. That's a different indoor hobby. Since I'll be disappointed in Canon's jpegs, I'll go with another camera that I'm looking at which produces great jpegs. Thanks for the heads up!

Re: In-camera distortion correction

ebiggs1 — Sun, 09 Dec 2018 18:00:00 GMT

"I just checked the 80D's manual and it also has distortion correction..."

It may not have data for all Canon lenses.

Re: In-camera distortion correction

jrhoffman75 — Sun, 09 Dec 2018 18:16:53 GMT

Any lenses not pre-installed can be added by the Lens Registration Tool or EOS Utility.

Re: In-camera distortion correction

Waddizzle — Sun, 09 Dec 2018 21:18:31 GMT

@michal wrote:
Right, sorry, I sometimes write things faster than I think.

Thank you for your answers, I just checked the 80D's manual and it also has distortion correction 😄

And I'm aware that post-processing with a proper program will be better.

One crucial point that has not been pointed out is that in-camera lens distortion correction only applies to Canon lenses. If you use any third party lenses, the camera can read the lens make and model number, which it writes out to EXIF data.

But, the Canon camera will not apply lens correction of any kind to a third party lens. Not even the free Canon DPP software will process third party lenses. For third party lenses, you need third party software to perform lens correction.

One big disadvantage of performing in-camera distortion correction is you will forfeit any AF point data. The image content is being re-arranged when distortion correction is applied. The correction can cause the original content under the AF point to shift slightly, which means the AF point data may no longer apply.

Last I checked, the Canon DPP software will not display AF point data for JPEG files with in-camera distortion correction applied. However, other third party software applications just may display them, anyway, This can be misleading, but AF points are larger than the little red boxes that you see in the viewfinder and AF point displays on a computer.