5 Replies Latest reply on Jul 14, 2012 5:59 AM by MikeKPhoto

    Canon 5DIII images cropped in ACR

    Will Y.



      I have an odd situation I can't figure out and thought maybe someone might have a solution. Someone in the Photoshop forum suggested I cross-post to this forum (apologies if you're reading it twice)


      I have happily used my new Canon 5DIII and ACR without any problems. I am working on a MacBook Pro running 10.7.4, CS6 and ACR 7.1


      I was shooting video with the 5DIII yesterday and shot a few stills as I was working. I shot in RAW for the stills. On the 5DIII you can shoot still images while shooting video.


      When I look at the still image in Photo Mechanic, I see the full image and Photo Mechanic tells me it's 5760x3840 in size.


      When I open the image in Photoshop 6 using Camera Raw it shows up cropped 5760x3240 - the 16x9 video crop. But I can't get to the full image - the crop tool in Camera Raw doesn't let me reveal anymore of the image. I can't figure out how to see the whole photo.


      any ideas?




        • 1. Re: Canon 5DIII images cropped in ACR
          Noel Carboni Level 8

          Just so Will doesn't have to answer the same questions again, readers should glance at this thread:





          • 2. Re: Canon 5DIII images cropped in ACR
            ssprengel Adobe Community Professional & MVP

            Adobe raw processing of images with the lowly T4i shows the same thing. 


            Testing the camera at Best Buy, I shot RAW+JPG images and did a couple during a video.  The JPG from the camera is full-width but cropped vertically to a 16:9 aspect, while the CR2 file appears to be full-resolution—the thumbnail shows more data on top and bottom, and Picasa can see all the data, albeit with a pinkish tone, but when opening in ACR, the image is cropped like the camera-JPG is.


            The issue appears to be a design choice by Adobe, to only produce results that are consistent with the size of the camera JPG, rather than ignoring what the camera does and producing results from all the camera-raw data in the CR2 file.   If Adobe had chosen the other way as the only way, then some people who shoot stills during video and had them come out a different aspect ratio might complain how it was different than the camera does with JPGs.  My choice would be to have stills-during-video have a user-selectable processing choice of whether or not to use the camera-JPG aspect ratio in the Adobe Raw Engine or to use the full sensor data.    A simple “use video aspect” or “use full sensor data” checkmark, perhaps in the crop area or the camera calibration area would work for the case under discussion.  It would be grayed out or unseen for almost all camera raw processing and only be applicable to stills shot during video on the newest cameras.  Perhaps with time the situation will be more common and Adobe will be more flexible, instead of making an arbitrary decision that limits the people who want it the other way.


            I remember one other situation which had an in-camera setting carry over to the raw-processor that really didn’t need to:  setting B/W in some cameras would cause where ACR to only allow editing of the image in B/W mode even though the sensor data is still multi-color Bayer filtered.

            • 3. Re: Canon 5DIII images cropped in ACR
              Robert Shomler Level 4

              In 2005 Thomas Knoll wrote a utility "DNG Recover Edges" to recover "all of the pixels that any supported digital camera records, whether    it's hidden edges or intentionally cropped formats."  Described in a Luminous Landscape article:




              Current links (link in that article does not work now):




              I've used it to good advantage a few times. 

              • 4. Re: Canon 5DIII images cropped in ACR
                Andrew_Hart Level 2

                Thank you, Robert.


                Never knew about this until your post.


                Very good to have this ready for that rainy day when a few extra pixels in width/height might make all the difference.

                • 5. Re: Canon 5DIII images cropped in ACR
                  MikeKPhoto Level 2

                  This utility works great, but it will forever change your DNG file to the new dimensions, so if you want to retain the original, make a copy before dragging and dropping your DNG file onto the utility.


                  I just tried this out on a full frame D800 file where my composition was ever so slightly off and added just enough image pixels to improve the composition - image went from the standard 7360 x 4912 (36.2MP) to 7378 x 4924 (36.3MP) with the DNG file growing by 730k. Cool tool to have in your toolbox