3 Replies Latest reply on Jan 26, 2012 11:35 PM by smilex1961

    Fuji X10 raw image distorted

    smilex1961

      Adobe raw for the fuji X10 outputs a distorted image, the image is also cropped horizontally.

       

      When opening a X10 raw file (.RAF) in adobe raw, the following unexpected results:

      • about 3% is cropped from horizontal field of view (symmetrical, both sides)
      • the image is then "stretched" to fit the horizontal resolution
      • the status indicates a dimension of 6144 x 4608 pixels (the open dialog showed 4000 x 3000)
      • the image is stored as 6144 x 4608 pixels

       

      Attached are 2 images, 1 converted by the camera, the other by adobe raw.

       

      Converted by camera:

      camera.jpg

       

      Converted by adobe raw (version 6.6.0.261):

      adobe_raw.jpg

       

      I find this quite annoying. Does anyone know how to fix this?

       

      Thanks.

        • 1. Re: Fuji X10 raw image distorted
          AJOrange Level 1

          I too have noticed this issue, and it does appear to induce a distortion into the final image due to the streching...

           

          Hopefully this is addressed in additon to the sharpening/NR I discuss at http://forums.adobe.com/message/4118159#4118159

           

          Thanks for posting

          • 2. Re: Fuji X10 raw image distorted
            MadManChan2000 Adobe Employee

            I believe ACR is doing the correct warp (try using the Fuji desktop raw conversion software ... it should match the ACR result).

             

            The in-camera JPEGs at the short focal lengths actually change the aspect ratio of the image slightly (making it about 3 to 5% narrower), which I think is a glitch.  For example, if you take a picture of a square head-on, in ACR it'll be rendered as a square, but the in-camera JPEGs the horizontal side will be about 3 to 5% shorter than the vertical side.

            • 3. Re: Fuji X10 raw image distorted
              smilex1961 Level 1

              You are right!

               

              Somewhere in the raw process with both silky and ACR converters pixels at each side are discarded. The pixels of about 1 cm of the yardstick (see picture) are not used. The camera's converter does utilise these pixels, BUT squeezes the image to a 0.96 : 1 ratio. This ratio is 1:1 longer focal lengths, the "pixel loss" is then nearly 0.

               

              The pixels might not be output to the raw file or are discarded by the convertors. Perhaps this is done because of quality degradation of corner pixels / coverage at short focal lengths. I'll test to see if it is also related to aperture. NOT an adobe raw issue I should say.

               

              Lower half of image: more pixels at the sides with jpg from camera

              test1kopie.jpg

               

              Image is squeezed when processed by camera

              test2kopie.jpg

               

              Original image, 28mm, F2.0

              test0kopie.jpg