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CalOES Producer
Known Participant
August 18, 2022
Question

Spherical Aberration in LRC in Side By Side Comparisons with Canon Raw to JPG Images

  • August 18, 2022
  • 2 replies
  • 421 views

Hello,

I just shot my new Canon R3 and while reviewing the images in LRC, shot in both raw and jpg, noticed an aberration. I see a convex, spherical aberration in the images.  I seem them regardless of enabling the lens corrections or not. The lens is a Canon EF 24-70 f/2.8, not wide enough to see a fisheye effect.

What would cause this?

I've attached two identical photos, one screen capture of the raw one, and the jpg shot in-camera at the same time. Open them both up and click on one, then the other, and you'll see the distortion.

 

ALSO - why do the thumbnail image number, and the file number below the large image viewer, show different file numbers?? Shouldn't they be the same?? I've attached that image too (Screenshot.)

 

Here's my tech info

Hardware Overview:

  Model Name: iMac Pro

  Model Identifier: iMacPro1,1

  Processor Name: 8-Core Intel Xeon W

  Processor Speed: 3.2 GHz

  Number of Processors: 1

  Total Number of Cores: 8

  L2 Cache (per Core): 1 MB

  L3 Cache: 11 MB

  Hyper-Threading Technology: Enabled

  Memory: 64 GB

  System Firmware Version: 1731.100.130.0.0 (iBridge: 19.16.14243.0.0,0)

LRC:

11.4.1  Camera Raw: 14.4.1

 

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2 replies

GoldingD
Legend
August 18, 2022

As for the convex, spherical aberration , I do not see it, maybe my vision.

 

CalOES Producer
Known Participant
August 18, 2022
Thanks for the input. Maybe a screen recording will help. Let me know.

Shawn
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GoldingD
Legend
August 18, 2022

Video would indeed be better

GoldingD
Legend
August 18, 2022

In your second image showing the filmstrip, you are conflating an image file name with a LrC index number. That index number is not metadata, it just informs you that 46 is the 46th image in the current filmstrip. Just a considense that it is close to the filename.

 

 

If it irritates you, it can be turned off:

https://laurashoe.com/2019/08/13/whats-new-in-lightroom-classic-8-4-august-2019-batch-photomerge-processing-and-more/lightroom-classic-turn-off-filmstrip-index-numbers/

 

 

Note: Do not mark this reply as correct as it only talks to just your add on annoyance, not your actual problem. Marking this reply as correct could cut down on members interest in replying.