EOS R5 Mark II When to use Distortion Correction?

[boelens218]

Distortion correction is disabled by default on the r5 mark2. In what situations would you want to enable it?

I plan to only use the single lens I have which is the 24-70mm F2.8. 

I use Affinity Photo 2 to edit my cr3 images, should I use the "lens correction" (profile for my lens) and the "remove lens vignette" features? They are both enabled by default. 

Thank you,

[p4pictures]

You can process the RAW images with the free to download Canon Digital Photo Professional. It can process the images using the Canon lens profiles, but only for Canon lenses, not Sigma, Tamron etc. 

[ebiggs1]

"Lightroom applies Adobe lens corrections as a default, ..."

Lightroom doesn't apply lens correction by default. LR only applies it automatically when it can identify the lens and camera make from the EXIF. if you want to make this automatic for all imports you need to create a preset. If you don't want LR to ever do any lens correction upon import you need to also create a preset for that.

Personally I have a LR preset that applies lens correction and a few other things to every image I u/l to it.

[boelens218]

I don't understand your response. I feel I was very clear with my questions. I will just contact Canon and not use this forum again. Very disappointing..

[ebiggs1]

"I feel I was very clear with my questions. ... (and) not use this forum again. Very disappointing.."

Every so often we get a person that says that and I never understand why. Everyone has given you answers. Sometimes the answer is one you may not like or don't agree with but it is an answer just the same.  The amount of experience that lives on this forum has got to be measured in centuries not years or even decades. We are just folks trying to help.

[SignifDigits]

I re-read his question.  I think he wanted a "yes/no" answer and we might have overcomplicated things.  IMO the answer is "Yes" - at least MOST of the time.

[jrhoffman75]

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@SignifDigits wrote:

I re-read his question.  I think he wanted a "yes/no" answer and we might have overcomplicated things.  IMO the answer is "Yes" - at least MOST of the time.

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I would disagree. His question was:

"

Distortion correction is disabled by default on the r5 mark2. In what situations would you want to enable it?

I plan to only use the single lens I have which is the 24-70mm F2.8. 

I use Affinity Photo 2 to edit my cr3 images, should I use the "lens correction" (profile for my lens) and the "remove lens vignette" features? They are both enabled by default. "

The response he complained about said:

"The only reason to keep lens correction turned on in the camera is if you want to use the JPEG or the embedded JPEG from the raw file." Since he said he was editing his .CR3 files he could conclude that there was no reason to turn it on.

[SignifDigits]

You're right. I was only answering his second question with probably "yes"- mostly.  That said, I bugged out on this thread as I have zero experience with Affinity Photo 2 and didn't want to express an uneducated opinion.  I had already weighed in on the first with "I would want to enable when saving to JPG on the camera - say if I were shooting casual snapshots that were going straight to a text or email."  And that's essentially the same answer- ish, though yours is much more precise (not my strong suit in communications, I'm afraid).

[boelens218]

I apologize for being impatient. I'm just very frustrated with this and it's been going on for months. I've been back and forth with Affinity so many times it's ridiculous. At first, they told me the lens profile (for my lens) is for the EF version and not the RF version. Therefore, they sent me a xml file that is an updated profile for my lens to use with Affinity Photo. However, this did nothing and have the same results with the lens correction feature in Affinity Photo. After letting them know this, they told me nothing is wrong with the lens profile for my lens! I don't seem to be getting anywhere with Affinity, so I gave up with them for now. I was going to mention this in my first post but I though it's best to keep things simple.

As I mentioned, for my camera (R5 mark2) and lens (RF 24-70mm F2.8 L IS USM) the default Lens Aberration Correction settings are below.

Peripheral Illumination Correction = ON
Distortion Correction = OFF
Digital Lens Optimizer = Standard

Therefore, I have to assume this is what Canon recommends. However, the lens correction feature in Affinity is enabled by default. Therefore, I have to assume this is what Affinity recommends. Correct me if I'm wrong, I understand the distortion correction feature on the camera and the lens correction feature in Affinity are essentially the same thing. They do have different results but are doing the same thing in their own way. Basically, this puts me in an awkward situation because Canon is recommending not to use it and Affinity is recommending that I do use it. Either way, I am unable to move forward and start editing my files because I don't know whether to use it or not. I understand the lens/distortion correction feature is somewhat subjective and can come down to opinion. However, I feel one has to be more accurate than the other, but I am unable to determine which one that is. I could literately be here forever not knowing which one is more accurate. The reason I got upset is because posted a photo with and without the Affinity lens corrections and simply asked which I should use. My question or photos were never even acknowledged. I will try to be as clear as I can with my questions below.

First thing, why would the format matter with distortion correction? For example, why would you recommend enabling the distortion correction on the camera only with jpeg files? If I should be using distortion correction, I want to use it regardless of the format I'm using. As I mentioned, the distortion correction feature on the camera has a different effect that the lens correction done in Affinity Photo. I assume the effect of the correction is slightly different with all software. However, that's not important because in my case I'm only using Affinity Photo. Therefore, I can enable the correction either on the camera or in Affinity after the fact. My point is the effect is different, and if I prefer the correction on the camera, I will want to use it, even for raw files. 

Please look at the images I posted with and without the lens correction feature in Affinity. Do you recommend I use it for all my photos (regardless of focal length) or not? As I mentioned, I either want to use the lens correction feature in Affinity for all my pictures or none of them. For example, I don't want to end up with a mix of some having the correction and some not. I tried to contact Affinity and go over this, but I don't seem to be getting anywhere. Therefore, I thought I would just post some before and after pictures of the lens correction feature in Affinity and get a professional's recommendation. 

Note all the photos were taken with the distortion correction disabled, which is the default setting on the camera. I just recently took one picture with the distortion correction enabled and compared it to the correction being done in Affinity. They are different. As I mentioned, it's too late for me to use the distortion correction feature on the camera even if I wanted to. I downloaded DPP and applied the correction to a raw file but was unable to save it with the correction applied. I don't even know if the DPP correction has the EXACT same effect as the camera because I couldn't save it to compare.

[boelens218]

Without Lens Correction (50mm)With Lens Correction (50mm)

[boelens218]

Without Lens Correction (35mm)With Lens Correction (35mm)