13 Replies Latest reply on Feb 19, 2017 10:55 AM by JeffGreenberg

    EXIF-less DNG won't open in ACR

    JeffGreenberg

      I removed EXIF from a DNG as test but ACR won't open DNG,

      also DNG converter won't open it when attempting to convert

      DNG ===> DNG in hopes that this would let ACR open it.

      How do I get EXIF-less DNG to once again open in ACR???

      Manually add some EXIF info?

      Copy EXIF info from any other DNG?

      Or???  Thanks in advance.

        • 1. Re: EXIF-less DNG won't open in ACR
          Just Shoot Me Adobe Community Professional

          JeffGreenberg  wrote

           

          I removed EXIF from a DNG as test but ACR won't open DNG,

           

          Manually add some EXIF info?

          Copy EXIF info from any other DNG?

          Or???  Thanks in advance.

          You should try those options.

           

          But why in the world are you messing around deleting, removing, EXIF data from a Digital NeGative file. For what purpose?

          By doing so you seem to have destroyed the DNG file.

          • 2. Re: EXIF-less DNG won't open in ACR
            JeffGreenberg Level 1

            > You should try those options.

             

            Thanks.  Am seeking authoritative answer.

            • 3. Re: EXIF-less DNG won't open in ACR
              Just Shoot Me Adobe Community Professional

              Not sure will will receive Authoritative answers because I doubt no one else removes EXIF data from DNG RAW files and then tries to reenter it.

               

              Best of luck to you.

              • 4. Re: EXIF-less DNG won't open in ACR
                JeffGreenberg Level 1

                There are lots of EXIF-deleting programs offered, some free.

                And there will be knowledgeable persons knowing solutions.

                Patience pays.  Real  answers vs. post padding...

                • 5. Re: EXIF-less DNG won't open in ACR
                  Test Screen Name Most Valuable Participant

                  According to Wikipedia, DNG contains mandatory metadata, which - since EXIF is the preferred metadata format in DNG - means you've removed something mandatory. If it contained no important information it wouldn't be mandatory, or so it seems to me. My suggestion, since anyone who tells you this is just a daft thing to do is clearly just padding their post count, is to refer to the DNG specification and make your own determination. http://wwwimages.adobe.com/content/dam/Adobe/en/products/photoshop/pdfs/dng_spec_1.4.0.0.p df

                  1 person found this helpful
                  • 6. Re: EXIF-less DNG won't open in ACR
                    JeffGreenberg Level 1

                    Seeking solution, not links to wiki definitions.

                     

                    Data was deleted using free EXIF Pilot program.

                    It has delete, export, import functions, etc.

                    Common sense says these functions are used

                    for various purposes other than to be unable

                    to open a cleared DNG with ACR.

                     

                    Was able to export EXIF+IPTC+XMP from

                    another "working" DNG, but when I imported

                    data into nonworking DNG, only the EXIF+IPTC

                    was imported & got a "can't parse" message

                    in ACR.  Someone will know, waiting patiently...

                    • 7. Re: EXIF-less DNG won't open in ACR
                      Test Screen Name Most Valuable Participant

                      Good luck with that.

                      • 8. Re: EXIF-less DNG won't open in ACR
                        sandy_mc Level 3
                        1. EXIF from just any DNG won't help; it would have to be from the same camera, else all sorts of things won't match.
                        2. Adobe's DNG SDK has a DNG Validate app in it; that can tell you specifically what the problems with the DNG are. Alternatively, CornerFix can provide much the same information, if you configure it for "Verbose output".
                        1 person found this helpful
                        • 9. Re: EXIF-less DNG won't open in ACR
                          JeffGreenberg Level 1

                          > EXIF from any DNG won't help; it would have to be from same camera, else all sorts of things won't match.

                           

                          What about two bodies, same brand-model, same firmware, etc.?

                          I assumed only serial #s differ -- is that wrong & there are other issues?

                          Thanks in advance!

                           

                          Here's link if others want same:

                          Adobe - DNG SDK : For Windows : Adobe DNG Software Development Kit (SDK) 1.4 : Thank You

                          • 10. Re: EXIF-less DNG won't open in ACR
                            sandy_mc Level 3

                            Same model bodies would be probably be ok. There might be issues with settings; some cameras e.g., change black levels with ISO, etc. But that's rare.

                            • 11. Re: EXIF-less DNG won't open in ACR
                              JeffGreenberg Level 1

                              Thanks for response.

                              When I downloaded & clicked on "dng_validate.exe" there is no reaction...

                               

                              What I tried without success, using "EXIF Pilot" free program:

                               

                              1. export data from working DNG to Excel (also at link)

                              2. import that Excel data into broken DNG

                               

                              EXIF Pilot exports IPTC+EXIF+XMP but imports IPTC+EXIF = problem...?

                               

                              If anyone interested in reporting successful repair & steps taken...?

                              link to broken & working DNG + Excel data, same camera:

                               

                              Index of /Working-Broken-DNGs

                              • 12. Re: EXIF-less DNG won't open in ACR
                                sandy_mc Level 3

                                As a matter of curiosity, I looked at the DNG. Diagnostics below.

                                 

                                But, in summary, the file is trashed - it hasn't just had it's EXIF data removed, it's been structurally destroyed. Note the various "*** Warning: IFD 0 NewSubFileType has unexpected type (Short) ***" messages, the color matrixes are impossible, etc, etc. My opinion is, there is no way to recover that with any conventional tool. My suggestion - whatever tool created this mess, don't ever use it for anything else ever again.

                                 

                                 

                                 

                                Processing "/Users/sandy/Downloads/Broken.DNG"...

                                 

                                Uses little-endian byte order

                                Magic number = 42

                                 

                                IFD 0: Offset = 8, Entries = 30

                                 

                                *** Warning: IFD 0 NewSubFileType has unexpected type (Short) ***

                                NewSubFileType: Preview Image

                                BitsPerSample: 8 8 8

                                Compression: JPEG

                                PhotometricInterpretation: YCbCr

                                *** Warning: IFD 0 Make is not NULL terminated ***

                                Make: "DJI"

                                *** Warning: IFD 0 Model is not NULL terminated ***

                                Model: "FC6310"

                                Orientation: 1 - 0th row is top, 0th column is left

                                *** Warning: IFD 0 Software is not NULL terminated ***

                                Software: "v01.02.1478"

                                *** Warning: IFD 0 DateTime has unexpected count (19) ***

                                *DateTime:*** Warning: IFD 0 DateTime is not NULL terminated ***

                                "2017:02:19 10:10:49"

                                SubIFDs: IFD = 3992 4734

                                XMP: Count = 3171, Offset = 426

                                XMP: <?xpacket begin="\357\273\277" id="W5M0MpCehiHzreSzNTczkc9d"?>

                                XMP: <x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="XMP Core 4.4.0-Exiv2">

                                XMP:  <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">

                                XMP:   <rdf:Description rdf:about=""

                                XMP:     xmlns:xmp="http://ns.adobe.com/xap/1.0/"

                                XMP:     xmlns:tiff="http://ns.adobe.com/tiff/1.0/"

                                XMP:     xmlns:dc="http://purl.org/dc/elements/1.1/"

                                XMP:     xmlns:drone-dji="http://www.dji.com/drone-dji/1.0/"

                                XMP:     xmlns:crs="http://ns.adobe.com/camera-raw-settings/1.0/"

                                XMP:    xmp:ModifyDate="2017-02-15"

                                XMP:    xmp:CreateDate="2017-02-15"

                                XMP:    tiff:Make="DJI"

                                XMP:    tiff:Model="FC6310"

                                XMP:    dc:format="image/dng"

                                XMP:    drone-dji:AbsoluteAltitude="+15.13"

                                XMP:    drone-dji:RelativeAltitude="+10.60"

                                XMP:    drone-dji:GimbalRollDegree="+0.00"

                                XMP:    drone-dji:GimbalYawDegree="+100.00"

                                XMP:    drone-dji:GimbalPitchDegree="-12.80"

                                XMP:    drone-dji:FlightRollDegree="+1.20"

                                XMP:    drone-dji:FlightYawDegree="+99.90"

                                XMP:    drone-dji:FlightPitchDegree="+1.70"

                                XMP:    drone-dji:CamReverse="0"

                                XMP:    drone-dji:GimbalReverse="0"

                                XMP:    crs:Version="7.0"

                                XMP:    crs:HasSettings="False"

                                XMP:    crs:HasCrop="False"

                                XMP:    crs:AlreadyApplied="False"/>

                                XMP:  </rdf:RDF>

                                XMP: </x:xmpmeta>

                                XMP:                                                                                                     

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                                XMP:                           

                                XMP: <?xpacket end="w"?>

                                ExifIFD: 4926

                                GPSInfo: 5440

                                DNGVersion: 1.4.0.0

                                DNGBackwardVersion: 1.3.0.0

                                *** Warning: IFD 0 UniqueCameraModel is not NULL terminated ***

                                UniqueCameraModel: "FC6310"

                                ColorMatrix1:

                                      0.7726 429496.4380   0.0118

                                     -0.4213   1.2198   0.2259

                                    429496.6820   0.1114   0.6346

                                ColorMatrix2:

                                      0.7122 429496.5188 429496.6784

                                    429496.4140   1.1201   0.2231

                                     -0.0541   0.1423   0.5045

                                AnalogBalance: 1.0000 1.0000 1.0000

                                *** Warning: IFD 0 AsShotNeutral has unexpected type (Short) ***

                                AsShotNeutral: 45656.0000 6.0000 16960.0000

                                BaselineExposure: +0.00

                                BaselineNoise: 1.00

                                BaselineSharpness: 1.00

                                LinearResponseLimit: 1.00

                                *** Warning: IFD 0 CameraSerialNumber is not NULL terminated ***

                                CameraSerialNumber: "62294316f246cc08efe5a270c8184a35"

                                *** Warning: IFD 0 LensInfo has unexpected count (2) ***

                                *LensInfo: Rational = 24/1 24/1

                                *** Warning: IFD 0 ShadowScale has unexpected type (SRational) ***

                                ShadowScale: 1.0000

                                DNGPrivateData: Count = 125, Offset = 3866

                                    44 4a 49 20 00 00 00 00 00 00 00 00 00 00 00 00    DJI ............

                                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

                                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

                                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

                                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

                                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

                                    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

                                    00 00 00 00 00 00 00 00 00 00 00 00 00             .............  

                                CalibrationIlluminant1: Standard light A

                                CalibrationIlluminant2: D65

                                NextIFD = 5604

                                 

                                Chained IFD 1: Offset = 5604, Entries = 3

                                 

                                Compression: Old JPEG

                                JPEGInterchangeFormat: 5646

                                JPEGInterchangeFormatLength: 3070

                                NextIFD = 0

                                 

                                SubIFD 1: Offset = 3992, Entries = 28

                                 

                                NewSubFileType: Main Image

                                ImageWidth: 5472

                                ImageLength: 3648

                                BitsPerSample: 16

                                Compression: Uncompressed

                                PhotometricInterpretation: CFA

                                StripOffsets: Offset = 8716

                                SamplesPerPixel: 1

                                RowsPerStrip: 3648

                                StripByteCounts: Count = 39923712

                                PlanarConfiguration: 1

                                CFARepeatPatternDim: Rows = 2, Cols = 2

                                CFAPattern:

                                    Red      Green

                                    Green    Blue

                                CFAPlaneColor: Red Green Blue

                                CFALayout: Rectangular (or square) layout

                                BlackLevelRepeatDim: Rows = 2, Cols = 2

                                BlackLevel:

                                     3195.00  3190.00

                                     3190.00  3194.00

                                WhiteLevel: 65535

                                DefaultScale: H = 1.0000 V = 1.0000

                                DefaultCropOrigin: H = 4.00 V = 4.00

                                DefaultCropSize: H = 5464.00 V = 3640.00

                                BayerGreenSplit: 0

                                AntiAliasStrength: 1.00

                                BestQualityScale: 1.0000

                                ActiveArea: T = 0 L = 0 B = 3648 R = 5472

                                OpcodeList1: count = 0, offset = 4302

                                OpcodeList3: count = 256, offset = 4446

                                DefaultUserCrop: T = 0.00 L = 0.00 B = 1.00 R = 1.00

                                NextIFD = 0

                                 

                                SubIFD 2: Offset = 4734, Entries = 9

                                 

                                *** Warning: SubIFD 2 NewSubFileType has unexpected type (Short) ***

                                NewSubFileType: Preview Image

                                BitsPerSample: 8 8 8

                                Compression: JPEG

                                PhotometricInterpretation: YCbCr

                                PlanarConfiguration: 1

                                YCbCrCoefficients: R = 0.299, G = 0.587, B = 0.114

                                YCbCrSubSampling: H = 2, V = 2

                                YCbCrPositioning: 2

                                ReferenceBlackWhite: 0.0 255.0 128.0 255.0 128.0 255.0

                                NextIFD = 0

                                 

                                Exif IFD: Offset = 4926, Entries = 29

                                 

                                ExposureTime: 1/30.0 sec

                                FNumber: f/2.80

                                ExposureProgram: Program Normal

                                ISOSpeedRatings: 320

                                ExifVersion: 2.30

                                *** Warning: Exif IFD DateTimeOriginal has unexpected count (19) ***

                                *DateTimeOriginal:*** Warning: Exif IFD DateTimeOriginal is not NULL terminated ***

                                "2017:02:19 10:10:49"

                                *** Warning: Exif IFD DateTimeDigitized has unexpected count (19) ***

                                *DateTimeDigitized:*** Warning: Exif IFD DateTimeDigitized is not NULL terminated ***

                                "2017:02:19 10:10:49"

                                ShutterSpeedValue: 0.50 sec

                                *** Warning: The ExposureTime and ShutterSpeedValue tags have conflicting values ***

                                ApertureValue: f/2.80

                                ExposureBiasValue: 0.66

                                MaxApertureValue: f/2.8

                                SubjectDistance: 0/1

                                MeteringMode: CenterWeightedAverage

                                LightSource: Unknown

                                Flash: 32

                                    No flash function

                                FocalLength: 8.8 mm

                                CustomRendered: Normal process

                                ExposureMode: Auto exposure

                                WhiteBalance: Auto white balance

                                DigitalZoomRatio: Not used

                                FocalLengthIn35mmFilm: 24 mm

                                SceneCaptureType: Standard

                                GainControl: None

                                Contrast: Normal

                                Saturation: Normal

                                Sharpness: Normal

                                SubjectDistanceRange: Unknown

                                *** Warning: Exif IFD CameraSerialNumberExif is not NULL terminated ***

                                CameraSerialNumberExif: "62294316f246cc08efe5a270c8184a35"

                                *** Warning: Exif IFD LensSpecificationExif has unexpected count (2) ***

                                *LensSpecificationExif: Rational = 24/1 24/1

                                NextIFD = 0

                                 

                                GPS IFD: Offset = 5440, Entries = 8

                                 

                                GPSVersionID: 2.0.0.0

                                *** Warning: GPS IFD GPSLatitudeRef is not NULL terminated ***

                                GPSLatitudeRef: "N"

                                GPSLatitude: 0.0000 0.0000 0.0000

                                *** Warning: GPS IFD GPSLongitudeRef is not NULL terminated ***

                                GPSLongitudeRef: "E"

                                GPSLongitude: 0.0000 0.0000 0.0000

                                GPSAltitudeRef: Sea level reference (negative value)

                                GPSAltitude: 35.4400

                                *** Warning: GPS IFD GPSMapDatum is not NULL terminated ***

                                GPSMapDatum: "WGS-84"

                                NextIFD = 0

                                 

                                *** Warning: This file has Chained IFDs, which will be ignored by DNG readers ***

                                No decodable MakerNotes found

                                *** Error: Missing or invalid ImageWidth (IFD 0) ***

                                *** Error: Missing or invalid ImageWidth (SubIFD 2) ***

                                *** Error: Matrix math error ***

                                *** Error: ColorMatrix1 is not invertable ***

                                *** Error: File format is invalid ***

                                • 13. Re: EXIF-less DNG won't open in ACR
                                  JeffGreenberg Level 1

                                  Thanks!  Data was deleted with EXIF Pilot free program.

                                  I have questioned them directly -- they seem to be based in (gulp) Serbia!!!

                                  From this point on I will only delete EXIF in JPGs before submitting to agencies.

                                  (only some images for various reasons)

                                  The big mistake was deleting from DNG, not JPG very last step after processing...

                                   

                                  Just used EXIF Pilot on JPGs from some good DNGs

                                  to clear EXIF-XMP & they did NOT break!!!