Now and then I try to look in to a problem I always had with darktable. The absence of datetime information in the Image Information window. As I rely on date when I sort the images the only way of finding out when a picture is taken is to go back to windows explorer.
Yesterday I found out that the date information is correct in the database, but when I checked the xmp files there was no dateinformation until the files imported with darktable 3. To this I can add that none of my 15 000+ images have this dateinformation. The images also comes from differnt cameras, Nikon, Panasonic, Canon and different phone cameras.
Today I use darktable 3 rc2 on Win 10 Swedish. I use an English darktable but I have also tried to change this to Swedish without effect. I can also add that it is just the dateinformation that is missing, model, maker, lens and gps information is all there, just the date is missing.
I would very much appreciate advice on how to correct this.
If it is in xmp I don’t know. IIRC, for 3.0, the handling of time correction changed such that it is now in the xmp. But that may be the correction only.
About Swedish, it may be that the translation is not complete, IIRC only translations that reach a certain percentage of translated strings are included.
As I am not at my computer, I cannot check, so all this information may be outdated or wrong.
Yes, I agree with you, the manual show the way it should look but instead of the date and time I can only see a hyphen.
The reason I discussed Swedish an English versions of darktable was that sometimes there are different dateformats in different languages but this made no difference.
However, for me it´s a bit strange that I can see all EXIF information except the date an time.
When darktable presents the DateTime, is it the exif data tag 306 showing the last image modification date or the DateTime original, tag 36867 showing when the photo was taken?
I saw SW mofifying the first in raw files. Don’t remember which.
Maybe you are right about this but I was just using the heading from darktable, to avoid confusion
This afternoon I made another test and found that on a Linux mint box the date is there. Yes, I used the same images as in my windows installation.
Right now I am pretty fed up with this so I’ll rest for a while.
Hm, that this happens on windows only makes me wonder if this is an exiv2 issue or exiv2 dependency/build issue. Are other information that would require exiv2 missing as well?
To chris and mica, I attach a printout of a typical ImageInformation. As far as I can see, it´s all there except the datetime.
To Claes, the idea has struck me!
Here is a printout from exiftool, I cut off a bit in the middle to make it a little smaller
PS D:> cd bilder"2019 Slovakien"
PS D:\bilder\2019 Slovakien> exiftool SlovakienNik-0001.nef
ExifTool Version Number : 10.55
File Name : SlovakienNik-0001.nef
Directory : .
File Size : 25 MB
File Modification Date/Time : 2019:08:26 06:40:34+02:00
File Access Date/Time : 2019:09:01 20:30:49+02:00
File Creation Date/Time : 2019:09:01 20:18:16+02:00
File Permissions : rw-rw-rw-
File Type : NEF
File Type Extension : nef
MIME Type : image/x-nikon-nef
Exif Byte Order : Little-endian (Intel, II)
Make : NIKON CORPORATION
Camera Model Name : NIKON D5600
Orientation : Horizontal (normal)
Software : Ver.1.02
Modify Date : 2019:08:26 06:40:33
Artist :
Jpg From Raw Start : 1105408
Jpg From Raw Length : 2169396
Y Cb Cr Positioning : Co-sited
Image Width : 6016
Image Height : 4016
Bits Per Sample : 14
Compression : Nikon NEF Compressed
Photometric Interpretation : Color Filter Array
Strip Offsets : 3275264
Samples Per Pixel : 1
Rows Per Strip : 4016
Strip Byte Counts : 23070951
X Resolution : 300
Y Resolution : 300
Planar Configuration : Chunky
Resolution Unit : inches
CFA Repeat Pattern Dim : 2 2
CFA Pattern 2 : 0 1 1 2
Subfile Type : Reduced-resolution image
Other Image Start : 229888
Other Image Length : 875093
Reference Black White : 0 255 0 255 0 255
Creator Tool : NIKON D5600 Ver.1.02
Rating : 0
Copyright :
Exposure Time : 1/50
F Number : 8.0
Exposure Program : Aperture-priority AE
ISO : 100
Sensitivity Type : Recommended Exposure Index
Recommended Exposure Index : 100
Create Date : 2019:08:26 06:40:33
Exposure Compensation : 0
Max Aperture Value : 3.7
Metering Mode : Multi-segment
Light Source : Unknown
Flash : Off, Did not fire
Focal Length : 21.0 mm
Maker Note Version : 2.11
Quality : RAW
White Balance : Auto
Focus Mode : AF-A
Flash Setting :
Flash Type :
White Balance Fine Tune : 0 0
WB RB Levels : 2.08203125 1.40234375 1 1
Program Shift : 0
Exposure Difference : 0
Preview Image Start : 39528
Preview Image Length : 131927
Flash Exposure Compensation : 0
External Flash Exposure Comp : 0
Flash Exposure Bracket Value : 0.0
Exposure Bracket Value : 0
Crop Hi Speed : On (6016x4016 cropped to 6016x4016 at pixel 0,0)
Exposure Tuning : 0
Serial Number : 6064150
Color Space : sRGB
VR Info Version : 0100
Vibration Reduction : On
VR Mode : Normal
Active D-Lighting : Auto
Picture Control Version : 0200
Picture Control Name : Standard
Picture Control Base : Standard
Picture Control Adjust : Default Settings
Picture Control Quick Adjust : Normal
Clarity : 1.00
Brightness : Normal
Hue : None
Filter Effect : n/a
Toning Effect : n/a
Toning Saturation : n/a
Time Zone : +01:00
Daylight Savings : No
Date Display Format : Y/M/D
ISO Expansion : Off
ISO2 : 100
ISO Expansion 2 : Off
Vignette Control : Normal
Auto Distortion Control : Off
Black Level : 600 600 600 600
Lens Type : G VR
Lens : 18-270mm f/3.5-6.3
Flash Mode : Did Not Fire
Shooting Mode : Continuous, Auto ISO
Contrast Curve : (Binary data 578 bytes, use -b option to extract)
Shot Info Version : 0241
Firmware Version : 1.02
NEF Compression : Lossy (type 2)
Noise Reduction : Off
NEF Linearization Table : (Binary data 624 bytes, use -b option to extract)
Color Balance Version : 0224
Lens Data Version : 0204
Exit Pupil Position : 70.6 mm
AF Aperture : 3.8
Focus Position : 0x43
Focus Distance : 94.41 m
Lens ID Number : 240
Lens F Stops : 5.25
Min Focal Length : 18.3 mm
Max Focal Length : 269.1 mm
Max Aperture At Min Focal : 3.6
Max Aperture At Max Focal : 6.3
MCU Version : 223
Effective Max Aperture : 3.8
Raw Image Center : 3008 2008
Retouch History : None
Shutter Count : 4788
Flash Info Version : 0107
Flash Source : None
External Flash Firmware : n/a
External Flash Zoom Override : No
External Flash Status : Flash Not Attached
External Flash Ready State : n/a
Flash Compensation : 0
Flash GN Distance : 0
Vari Program :
Multi Exposure Version : 0100
Multi Exposure Mode : Off
Multi Exposure Shots : 0
Multi Exposure Auto Gain : Off
High ISO Noise Reduction : Normal
Power Up Time : 0000:00:00 00:00:00
AF Info 2 Version : 0100
Contrast Detect AF : Off
AF Area Mode : Auto-area
Phase Detect AF : On (39-point)
Primary AF Point : D7
AF Points Used : A1,A2,A3,B1,B6,B7,B8,B11,C1,C3,C4,C5,C8,C11,D3,D4,D5,D7,D9,D11,E1,E2
Contrast Detect AF In Focus : No
File Info Version : 0100
Memory Card Number : 0
Directory Number : 101
File Number : 0001
Retouch Info Version : 0200
Retouch NEF Processing : Off
User Comment :
Sub Sec Time : 53
Sub Sec Time Original : 53
Sub Sec Time Digitized : 53
Sensing Method : One-chip color area
File Source : Digital Camera
Scene Type : Directly photographed
Custom Rendered : Normal
Exposure Mode : Auto
Digital Zoom Ratio : 1
Focal Length In 35mm Format : 31 mm
Scene Capture Type : Standard
Gain Control : None
Contrast : Normal
Saturation : Normal
Sharpness : Normal
Subject Distance Range : Unknown
GPS Version ID : 2.3.0.0
Date/Time Original : 2019:08:26 06:40:33
TIFF-EP Standard ID : 1 0 0 0
Aperture : 8.0
Auto Focus : On
Blue Balance : 1.402344
CFA Pattern : [Red,Green][Green,Blue]
Image Size : 6016x4016
Jpg From Raw : (Binary data 2169396 bytes, use -b option to extract)
Lens ID : Tamron AF 18-270mm f/3.5-6.3 Di II VC PZD (B008)
Lens Spec : 18-270mm f/3.5-6.3 G VR
Megapixels : 24.2
Other Image : (Binary data 875093 bytes, use -b option to extract)
Preview Image : (Binary data 131927 bytes, use -b option to extract)
Red Balance : 2.082031
Scale Factor To 35 mm Equivalent: 1.5
Shutter Speed : 1/50
Create Date : 2019:08:26 06:40:33.53
Date/Time Original : 2019:08:26 06:40:33.53
Modify Date : 2019:08:26 06:40:33.53
Thumbnail TIFF : (Binary data 57816 bytes, use -b option to extract)
Circle Of Confusion : 0.020 mm
Depth Of Field : inf (2.63 m - inf)
Field Of View : 60.3 deg (109.61 m)
Focal Length : 21.0 mm (35 mm equivalent: 31.0 mm)
Hyperfocal Distance : 2.71 m
Light Value : 11.6
