This topic has been created in response to Alberto’s request for more information (Where to save DCP profiles so ART will automatically apply them? - #15 by agriggio).
ART 1.16.3, Branch: releases, Commit: a8ce44a90c02, Commit date: 2022-09-26
Windows 11
Canon T8i / 850D
SIgma 17-70 f/2.8-4.5 DC Macro
This is dealing with filtering by lens type as seen in the file browser, and the intermittent mis-identification of a lens.
Yesterday I saw several CR3 images shot with the same camera & lens recognized both as the correct lens and as “unknown”. Since then, nothing has changed: No shutdown / reboot, no updates, no ART changes, etc. But now the identification is different this morning – but still incorrect. I don’t have a record of yesterday so can I can’t be quantitative, but I copied the same raw files to another folder and reviewed them there as well. There was a even slight difference between (the same files in) those two folders.
Now in both folders all these Sigma lens images show as “unknown” except for one image (IMG_1754.CR3) which is correctly identified as “Sigma 17-70mm f/2.8-4.5 DC Macro” in one folder only.
I repeated this comparison of the folders with a clean ART config. The result was identical except the previously correct file was now seen as “unknown” as well. Restoring my config returned that file (only) to correct.
Here’s a text file of the results with relevant EXIF info for each file (per exiftool 12.40).
lensinfo.txt (11.8 KB)
In it there are three major columns - 1) With my ART config, 2) “DIFF” and 3) with a new clean ART config. For example:
With my ART config DIFF With a clean (new default) ART config
------------------ ---- -------------------------------------
File Name : IMG_0343.CR3 File Name : IMG_0343.CR3
Camera Model Name : Canon EOS Rebel T8i Camera Model Name : Canon EOS Rebel T8i
Lens Type : Canon EF 28-80mm f/2.8-4L USM or Sigma Lens Lens Type : Canon EF 28-80mm f/2.8-4L USM or Sigma Lens
Lens ID : Sigma 17-70mm f/2.8-4.5 DC Macro Lens ID : Sigma 17-70mm f/2.8-4.5 DC Macro
C:\data\images\Our-Photos\_scratch "Unknown" C:\data\images\Our-Photos\_scratch "Unknown"
C:\Users\len\Downloads\tmp1 "Unknown" C:\Users\len\Downloads\tmp1 "Unknown"
The left (my config) and right (new config) columns show EXIF and what was indicated by ART via the Filtering panel, per the folder in which the file was located (the two C:* lines). The “DIFF” column contains “XXXX” only if there was a difference between the two outer columns (one file).
Note exiftool returns “Canon EF 28-80mm f/2.8-4L USM or Sigma Lens” for the lens type but correctly for the lens ID. I assume this is expected.
The actual raw files themselves can be downloaded here:
https://drive.google.com/drive/folders/1nVmlq2a8an4WesBMpA-Qt3yuXI5iY_ov?usp=sharing
Hopefully this info is of some use - I opted for TMI rather than ambiguity. I have no idea why my config would make any difference, but even with a new config it’s still misidentified.
Thanks.