Wrong ISO speed when it is over 65535
ktgw0316 opened this issue · 1 comments
ktgw0316 commented
Describe the bug
ISO speed shown in metadata table is clipped to maximum value 65535.
To Reproduce
Steps to reproduce the behavior:
- Select an image that was taken with ISO speed higher than 65535.
- Check the ISO speed value in metadata table.
Expected behavior
The value should be same as camera setting.
Desktop (please complete the following information):
- Version <= 4.2.5 and 5.0.0beta1
- OS: Any
Additional context
EXIF_ISO_SPEED_RATINGS (0x8827) tag value is 16-bit, and 2^16 = 65536.
ktgw0316 commented
Need to read Anex G in Exif v2.30 spec. cf.