9 Replies Latest reply: Nov 19, 2009 12:49 PM by MadManChan2000 RSS

    Odd Maze Pattern with Olympus E-P1 & DNG Converter

    nboyer1

      Hello.  I wanted to report an odd maze pattern when I convert a raw file from the Olympus E-P1.  It seems to happen when using wide angle lenses (Zeiss 21/4.5 C Biogon and Zeiss 25/2.8 Biogon.  The maze pattern is very prominent in the right corners of the image attached, where some softness is exhibited by the lens.  Anyone else experiencing this?  I do not get these patterns when converting with Olympus Studio or CaptureOne.  -Norm

       

      http://farm3.static.flickr.com/2610/3854306906_c9b65e9e3e_o.jpg

        • 1. Re: Odd Maze Pattern with Olympus E-P1 & DNG Converter
          MadManChan2000 Adobe Employee

          I have studied your images, Norman. Thanks for providing them. A fix will be provided in the next update of LR. (In the meantime, if you have CS4, you can use Camera Raw 5.5 Release Candidate to process your E-P1 images without these artifacts. If not, please wait for the next update of LR.)

          • 2. Re: Odd Maze Pattern with Olympus E-P1 & DNG Converter
            nboyer1 Community Member

            Thanks Eric.  I look forward to the LR update.  Can you offer a rough time

            estimate it will become available?

            • 3. Re: Odd Maze Pattern with Olympus E-P1 & DNG Converter
              MadManChan2000 Adobe Employee

              Rather soon. Keep in mind that we average about 4 updates per year, and that

              we usually synchronize CR and LR dot updates. This should help give you an

              idea of when to expect the next LR update.

               

              Cheers,

              Eric

               

               

              Thanks Eric.  I look forward to the LR update.  Can you offer a rough time

              estimate it will become available?

               

              • 4. Re: Odd Maze Pattern with Olympus E-P1 & DNG Converter
                Herb 19 Community Member

                Just found this elder post that interested me. I can report Maze Artifacts also when using the Panasonic GF-1 with adapted lenses in combination with RAW processing in Lightroom 2.5 and Photoshop CS4.

                 

                Lenses used are the Cosina Voigtlander Heliar 15 mm and a Leica Summicron-C 40 mm.

                 

                Also with raw conversion in Ligtroom 3 Beta the Maze Artifacts still exist however on screen a little less pronounced. After converting to TIF it is becoming clearly visible again. Artifacts only exist in the righthand corners, more so on topside.

                 

                So far I found raw conversion from Raw Developer doing a better job with almost no artifacts visible at 100% so this seems to me a problem that

                can be solved in the raw conversion.

                 

                There is no difference in converting the original raw file or first convert to DNG followed by further processing.

                 

                Will there be a solution in the final version of Lightroom 3? Or is there another solution right now?

                • 5. Re: Odd Maze Pattern with Olympus E-P1 & DNG Converter
                  MadManChan2000 Adobe Employee

                  Herb 19, can you please send me sample raw files (.RW2 files) taken with these lenses that show the problem?  You can use YouSendIt.com with a target email address of madmanchan2000@yahoo.com.

                   

                  Thanks,

                  Eric

                  • 6. Re: Odd Maze Pattern with Olympus E-P1 & DNG Converter
                    Herb 19 Community Member

                    Hello Eric,

                     

                    Many thanks for your reply. I sent two RW2 files; 295 made with the 

                    Voigtlander Super Wide Heliar 15mm II at f/11, and file 299 with the 

                    Leica Summicron-C 40 mm at f/8.

                    The maze artifacts are most visible in the top righthand corner. The 

                    longer the focal point of the lens the less visible seem the artifacts.

                    Although I have seen posts on Flickr that the artifacts can change 

                    with the same focal point lenses of different brands. A 35mm Zeiss 

                    showed maze artifacts while a 35 Leitz did not.

                     

                    I had some more interesting pictures with nice blue skies but these 

                    had already been converted to DNG (still showing strong maze artifacts).

                    If I can supply any more files or information please do not hesitate 

                    to ask.

                     

                     

                    Best regards,

                    Herb

                     

                     

                    Op 1 nov 2009, om 03:01 heeft MadManChan2000 het volgende geschreven:

                     

                    Herb 19, can you please send me sample raw files (.RW2 files) taken 

                    with these lenses that show the problem?  You can use YouSendIt.com 

                    with a target email address of mailto:madmanchan2000@yahoo.com.

                    >

                    Thanks,

                    Eric

                    >

                    • 7. Re: Odd Maze Pattern with Olympus E-P1 & DNG Converter
                      MadManChan2000 Adobe Employee

                      Thanks, Herb. Very helpful.

                       

                      Eric

                      • 8. Re: Odd Maze Pattern with Olympus E-P1 & DNG Converter
                        Herb 19 Community Member

                        Hello Eric,

                         

                        Just installed Lightroom 2.6 RC and Adobe DNG converter and Camera Raw update 5.6.

                        I loaded my previously reported maze artifact files, both as original raw file and converted to dng, and all looks terrific now!

                        No more artifacts. Obviously you have done an amazing job at Adobe.

                        Also after converting the original raw file to dng, the dng file seems to have a little less noise although at some times with a very slight loss of sharpness. Excellent anyway.

                        I would love to have some insight in how you fixed the issue of maze artifacts in the corners of the images.

                         

                        The dng converted files can also be processed now to good effect in Capture One 5.0 without artifacts.

                        In Raw Developer the original raw file and the converted dng file still show some artifacts at 200%. Adobe definitely improved on this.

                         

                        Many thanks!,

                        Herb

                        • 9. Re: Odd Maze Pattern with Olympus E-P1 & DNG Converter
                          MadManChan2000 Adobe Employee

                          Hi Herb,

                           

                          Thanks for the feedback! Glad to hear the processing is improved. I appreciate that you submitted test files - they helped.

                           

                          Eric