For reference I found this old post that indicated it was fixed in exiftool: https://exiftool.org/forum/index.php?topic=5701.0
I am trying to pull Canon's AEBShotCount from raw Canon files (Canon 90D is the camera). exiftool shows this:
| | | | + [CanonCustom2 group 1 directory with 8 entries, 104 bytes]
| | | | | 0) ExposureLevelIncrements = 0
| | | | | 1) ISOSpeedIncrements = 0
| | | | | 2) AEBAutoCancel = 0
| | | | | 3) AEBSequence = 0
| | | | | 4) AEBShotCount = 5
In Perl I have this: $info->{'AEBShotCount'};
and I print it, but it becomes this (for the same photo as above):
IMG_2021_12_09_2954.CR3, "Unknown (5)"
I also did an experiment with the value of 3, in that case the Perl interface reports this:
IMG_2021_12_08_2953.CR3, "7 shots"
For now I'm coding the Perl to look at the string and convert it to the right value but other workarounds are welcome.
The -v option gives the raw value. This is converted via the lookup table shown in the Tag Name documentation (https://exiftool.org/TagNames/CanonCustom.html#Functions2). To get the unconverted value, use the ValueConv option for GetValue() or set the PrintConv option to 0 using Options().
If you know what a value of 5 indicates, let me know and I'll add it to the lookup.
- Phil
Many thanks, Phil (for everything!)
The 90D supports auto brackets for 2, 3, 5 & 7 exposures so I tested with all four flavors, the following output has the unconverted and converted values. It's not just the missing values for 5 & 7: 2 & 3 point to 5 and 7 respectively.
AEB set to 2 shots:
IMG_2021_12_10_2959.CR3: PrintConv "5 shots", ValueConv 2
3 shots:
IMG_2021_12_08_2951.CR3: PrintConv "7 shots", ValueConv 3
5 shots:
IMG_2021_12_09_2954.CR3: PrintConv "Unknown (5)", ValueConv 5
7 shots:
IMG_2021_12_10_2961.CR3: PrintConv "Unknown (7)", ValueConv 7
Yes, you're correct that exiftool has the same behavior and I was getting confused with the -v output.
Thanks.
I'll patch this for the 90D, but I have no way to telling which other models also store AEBShotCount like this.
I wish manufacturers would be more consistent.
- Phil