Olympus E-PL2 & Panasonic 20mm f1.7 raw distortion

Mark Farrington

• 2011年09月06日 17:30

Hi.

I may be going mad here, but I thought my latest version of Capture One v6 would automatically correct distortion in raw files from my Olympus E-PL2 & Panasonic 20mm f1.7. I get lovely results if I run the Capture One output .jpg files through PTlens' Panny 20mm correction filter, but I thought I wouldn't have to do this.
I'm probably missing something simple... 🙄

Many thanks for any help.

Regards,
Mark
Cambridge, UK

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  nggalai

  • 2011年09月06日 19:11

  You’re not missing anything, Mark. Capture One doesn’t support µ43 lens correction data (yet?). The whole concept of µ43 angles on correction information transferred from lens to body to RAW file, hence I’d pass on C1 just now if your cameras are mostly of the Micro-Four-Thirds kind.
  
  Best processor for µ43 I found to date remains Adobe CameraRAW.
  
  Cheers,
  -Sascha

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  Mark Farrington

  • 2011年09月06日 21:08

  Thanks - for critical work I use a Nikon D300. I've always enjoyed the workflow of C1 and found it very intuitive and effective for the types of (limited) image manipulations I want to do with the Nikon system output.
  
  I'm using m4/3 more than I used to, especially for travel and street shooting, and I'll have a look at Adobe as you suggest. Although learning another workflow would be a bit of a pain, I try not to spend too long fiddling about in post processing so I don't need to get too deeply in to the program.
  
  From your response I gather you'll be developing C1 to give better m4/3 support and I'll watch this with interest.
  
  Regards,
  Mark

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  nggalai

  • 2011年09月07日 05:29

  Morning, Mark,
  
  

  [quote="drmarkf" wrote:
  From your response I gather you'll be developing C1 to give better m4/3 support and I'll watch this with interest.

  
  I’m just a user, too, not a PhaseOne employee. 😉 I was quite dismayed to learn of C1’s missing support for µ43 correction profiles when switching from Lightroom (which uses Adobe Camera RAW) to CaptureOne. I hope, too, that PhaseOne will add µ43 support; until then, I use the lens correction panel in C1 Pro for correcting barrel distortion, vignetting, and CA. Fortunately I only use three lenses on my E-P1 and E-P2, of which only the 20/F1.7 exhibits really strong distortion. I can live with the results of the 45/F2.8 out-of-cam, for example, and the 14/F2.5 isn’t too bad, either.
  
  Cheers,
  -Sascha

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  Mark Farrington

  • 2011年09月07日 06:44

  Yes, thanks. I currently do the same - I put all my 20mm f1.7 images through PTlens and the occasional one from my other lenses, depending on subject matter.
  I do have PSE 9 and will dabble with this for all m4/3 images, but I might end up staying as I am.

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  Martin312

  • 2011年09月07日 10:52

  So I will not be buying a G3 or GH2 as my social camera as I was planning. You have answered the question that I was intending to ask before buying.
  
  PhaseOne will have to move to lens correction as an integral part of RAW conversion. More manufacturers will go down the software lens correction route as a way of producing high-specification lenses that would not otherwise be possible or viable. Hassleblad (and Leica?) have already done so and it is an integral part of the Four-Thirds standard.
  
  I suspect it will only be time before a major manufacturer follows suit and then the floodgates will open.

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  dee jjjaaaa

  • 2011年09月07日 14:07

  dear, C1 supports optics corrections for Panasonic .RW2 files (raw files from Panasonic m43 body w/ the supported lens)...
  
  PS: I am really shocked by total incompetence of the people answering this question - ok, you don't know - that might be excused, but to check is just a click or two away... get .RW2, run it through dcraw - look @ the distortion, then open the same in C1 (v6.2 for the record).

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  dee jjjaaaa

  • 2011年09月07日 14:16

  [quote="drmarkf" wrote:
  
  I'm probably missing something simple... :

  
  
  yes, you are missing Panasonic body...

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  dee jjjaaaa

  • 2011年09月07日 14:24

  [quote="nggalai" wrote:
  You’re not missing anything, Mark. Capture One doesn’t support µ43 lens correction data

  
  
  There is no such thing as "m43" lens correction data - there is Panasonic and then there is Olympus...
  
  There is a way how Panasonic writes the data in its raw files and there is a way how Olympus writes the date in its raw files... and how they make that information available to 3rd parties for those 3rd parties to support that data.
  
  Panasonic started optics correction before m43 was formally born (first m43 body, G1 = September 2008 and P&S like LX3 for example = July 2008) and C1 supported optics correction for .RW2 raw files from LX3 (formally in its Leica incarnation = DLux4, but w/ camera make/name tag change in .RW2 file from Panasonic to Leica it was working for Panasonic body as well), which was not m43 body at all... so the way Panasonic does it (raw files) absolutely can not be called "m43" specific - it is specific to Panasonic...

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  nggalai

  • 2011年09月07日 15:33

  Yes, my reply was missing the “… on Olympus bodies†bit. As Mark specifically mentioned using Olympus and also asked about a specific lens on a specific Olympus body (in the headline, too) I thought this was self-evident from context.
  
  Thanks for clarifying the issue to people stumbling over this posting none the less.

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  dee jjjaaaa

  • 2011年09月07日 18:39

  [quote="nggalai" wrote:
  Yes, my reply was missing the “… on Olympus bodies†bit. As Mark specifically mentioned using Olympus and also asked about a specific lens on a specific Olympus body (in the headline, too) I thought this was self-evident from context.
  
  Thanks for clarifying the issue to people stumbling over this posting none the less.

  
  
  if you will scroll down the thread you can see that some people already started to draw conclusions about Panasonic support (not that it is perfect in C1).

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