1% Pincushion Distortion Correction not working

meanwhile

• 2015年10月19日 00:33

I have some images that have around 1% pincushion distortion, but when I set 1%, it does nothing. 2% is far too much, and all other 1% changes are easily noticeable (2 to 3,3 to 4, etc), but 1% is unchanged from 0%.

Is anyone else seeing this? Capture One Pro 8.3.3. Thanks!

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  Nikolai Vassiliev

  • 2015年10月19日 15:09

  Yepp. I remember its never worked since beginning 4.0 C1

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  HansB

  • 2015年10月19日 15:34

  Yes, me too.
  
  2% really makes a significant difference, but 1% is the same as 0%.
  They are in fact absolutely identical. When exporting both to PS and subtracting one from the other, nothing's left.
  
  
  Regards,
  Hans

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  meanwhile

  • 2015年10月19日 22:14

  Thanks for confirming it's not just me. Ticket in.

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  SFA

  • 2015年10月20日 02:33

  [quote="meanwhile" wrote:
  Thanks for confirming it's not just me. Ticket in.

  
  
  Using Windows 7 - when I first checked this I saw the same results (I think). Nothing at 1, obvious change at 2.
  
  However when I went back to the same image after checking others changes at 1% became evident.
  
  I have no explanation for that other than once the image has been taken up to 2% going back to 1% seems to register a change (compared to 0% and 2%) fairly consistently no matter whether reducing from 2% or increasing from 0%. The first adjustment, however, can seem a little slow to be applied.
  
  I'm wondering if perhaps the calculation mechanism needs a full 1 unit increment to kick off the calculation but the slider graphic resolution reports 1% when in fact the system only sees, say, 0.9%.
  
  A ticket seems to be the best route for this one but there may be a work around to be found in the meantime.
  
  
  HTH.
  
  
  Grant

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  HansB

  • 2015年10月20日 06:20

  Using Mac OS X 10.10 and 10.11, 1% is 0%. I can go 0% to 1%, 2% to 1%, change images when having set 1%, and restart the MBP. 1% = 0%. Always.
  I selected 'Generic pincussion distortion' as lens profile, just to make it more visible. My recent shots show very low pincussion, and the correction percentage seems lens profile related.
  
  I will file a support ticket, too. And I think I will ask for an extra digit for more accuracy.
  
  
  Regards,
  Hans

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  SFA

  • 2015年10月20日 09:09

  Hans,
  
  I think the problem in the original post was only about the Generic Pincushion adjustment. Working with the lens profile may be treated somewhat differently I would guess.
  
  In theory there should be little need to adjust the adjustment, if you see what I mean. In some cases there may be no adjustment to adjust.
  
  Grant

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  HansB

  • 2015年10月20日 10:44

  Hi Grant,
  
  Yep, I see what you mean. 😊
  
  The lens profiles PO provides are excellent, by the way. Surely for the Canon lenses I have.
  
  
  Regards,
  Hans

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  meanwhile

  • 2015年10月20日 13:18

  Phase One have confirmed the issue and said it's being worked on.
  Sounds like the fix might be a while though.

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  HansB

  • 2015年10月22日 08:31

  Hi meanwhile,
  
  Thanks for sharing their response.
  
  
  Regards,
  Hans

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  Nikolai Vassiliev

  • 2021年11月15日 11:21

  Six years passed but it still not working.

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