Canon R5 Issue border with R5

[charlands]

Hi all,

First time I saw this. It's been a year that I had my R5 and I never had issue.

Does anyone know what is this?

As you can see (between two rectangles) the image is blur.

 

[Archibald]

Your example shows the "correct" image to be a cropped version of the bad image.

We can't see what the dimensions of the bad image are, and if it was the R6 nameplate dimensions, whether the cropped (good) image was expanded to those dimensions.

Edit: OK, never mind. I think I have it figured out. The Adobe algorithms perform a lens correction. This involves moving pixels inward, and that leaves pixel trails at all four edges. Those margins should be cropped out but aren't in some cases.

 

[AntonLargiader]

That makes sense, and it's interesting because I never really thought about how a lens correction would work. Of course it has to move pixels.

Geek factor +1 would be seeing if Canon's LC moves the edge in by the same amount.

 

[Archibald]

That makes sense, and it's interesting because I never really thought about how a lens correction would work. Of course it has to move pixels.

Geek factor +1 would be seeing if Canon's LC moves the edge in by the same amount.

The lens correction would depend on the lens, zoom, and focus distance. Pixels get moved for many reasons, for instance straightening a horizon, yet there are folks who won't crop because that blurs the image a bit due to pixel interpolation.

 

[Hali]

okay- I have had this happen to me. You need to turn off image lens correction in Camera Raw or Lightroom. For some reason the newest update did that with my 24-240. Sometimes there is more than one version of the auto correction you can use that won't give you this.

 

[Hali]

okay- I have had this happen to me. You need to turn off image lens correction in Camera Raw or Lightroom. For some reason the newest update did that with my 24-240. Sometimes there is more than one version of the auto correction you can use that won't give you this.

and D'oh I should have read all the replies.

 

[Jake Shoots Birds]

Your example shows the "correct" image to be a cropped version of the bad image.

We can't see what the dimensions of the bad image are, and if it was the R6 nameplate dimensions, whether the cropped (good) image was expanded to those dimensions.

Edit: OK, never mind. I think I have it figured out. The Adobe algorithms perform a lens correction. This involves moving pixels inward, and that leaves pixel trails at all four edges. Those margins should be cropped out but aren't in some cases.

Bingo!! If I could make a GIF of the action it would have been much clearer. Turning on the profile correction = breaking the image. Absolutely nothing is wrong with the Raw file coming out of the camera.

 

[MSH411]

If you have the ability to update Adobe CR, LR, LRC and PS there was a release today that resolved this issue.