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.
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:
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:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
XMP:
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 ***
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