Can anyone confirm if the Canon PowerShot SX50 HS writes its InternalSerialNumber to jpg files?
I have one, but I can't display it.
The camera is listed in https://exiftool.org/TagNames/Canon.html#CameraInfoPowerShot
and I can display the Camera make, model etc from the file...but no serial number.
Thanks
Since MakerNotes are constantly changing between each and every camera model, many Canon tags won't appear in every camera.
I downloaded a couple images from DPReview's sample gallery (https://www.dpreview.com/sample-galleries/6719866864/canon-powershot-sx50-hs-review-samples/9993028236), took a look at the unknowns with
exiftool -G1 -a -s "-MakerNote:Canon_*" file.jpg
and nothing stood out that looked like it might be a serial number.
Looking at my samples from the various PowerShot SX models, none of the has an InternalSerialNumber that ExifTool extracts. Some do have an EXIF:SerialNumber, but not the SX50HS.
- Phil
Thanks to both of you for your prompt response! It's not the answer that I hoped for, but it is consistent with my results.
The minor problem I'm trying to solve is that my wife and I both each owned the same model camera. It would be nice to be able to separate the two sets of photos. I was hoping that serial number would be available. Both cameras had the same firmware rev. Any ideas on what metadata to use? It's not a big problem, so no need to spend time on it.
And thanks Phil for exiftool and exif. Been using them both for many years.
You can use the new -diff option to compare two files. Maybe also add -u just in case to extract unknown tags.
- Phil
Thanks for the suggestion. I used the -diff option to compare:
1. two files known to be from different cameras, nothing in the Canon area that looked like it was a serial number that was different
2. two files known to be from the same camera, nothing in the Canon area, that was the same value.
So, I think there's not much else to try.
Thanks again
dpr
It would be a bit more difficult, but maybe check the FileNumber tag?
Quote from: StarGeek on November 04, 2024, 05:13:49 PMIt would be a bit more difficult, but maybe check the FileNumber tag?
What's your thought on using FileNumber? https://support.usa.canon.com/kb/s/article/ART136321#:~:text=The%20four%2Ddigit%20file%20number,the%20file%20number%20is%20assigned. (https://support.usa.canon.com/kb/s/article/ART136321#:~:text=The%20four%2Ddigit%20file%20number,the%20file%20number%20is%20assigned.)
I was talking about the FileNumber tag that is embedded in the files. Using the samples I grabbed
C:\>exiftool -G1 -a -s -make -model -filenumber Y:\!temp\x
======== Y:/!temp/x/5498350621.jpg
[IFD0] Make : Canon
[IFD0] Model : Canon PowerShot SX50 HS
[Canon] FileNumber : 100-1573
======== Y:/!temp/x/9993028236.jpg
[IFD0] Make : Canon
[IFD0] Model : Canon PowerShot SX50 HS
[Canon] FileNumber : 100-1562
If you find a group of files numbered 100-1500 to 100-1600 and another group numbered 100-2200 to 100-2300, but they were all taken in the same time frame, then it's most likely that group one is from a different camera than group two.
You may be able to bump the file number by artificially renaming a directory to say 500 on a memory card then inserting that back in the camera and taking pictures. I have done this for other makes and the camera has picked up the new number and continued from there. Then the other camera would have file numbers 100-xxxx and this would have 500-xxxx and on.
- Phil