Canon EOS R5 "Subject to Detect"

[JohnMoyer]

Thanks for providing exiftool.
For me there is no urgency to this, but I was just curious.

Subject to Detect
https://cam.start.canon/hy/C003/manual/html/UG-04_AF-Drive_0050.html#AF-Drive_0050_4

Code Select Expand

exiftool -s -G0:2 -a -U -w out/%f_%e.txt /Volumes/EOS_DIGITAL/DCIM/100CANON/IMG_988[5-9].CR3 /Volumes/EOS_DIGITAL/DCIM/100CANON/IMG_9890.CR3
egrep Canon_AFConfig_0x0014 out/*
out/IMG_9887_CR3.txt:[MakerNotes:Camera] Canon_AFConfig_0x0014       : 1
out/IMG_9888_CR3.txt:[MakerNotes:Camera] Canon_AFConfig_0x0014       : 2
out/IMG_9889_CR3.txt:[MakerNotes:Camera] Canon_AFConfig_0x0014       : 3
out/IMG_9890_CR3.txt:[MakerNotes:Camera] Canon_AFConfig_0x0014       : 0

0 is None
1 is People
2 is Animals
3 is Vehicles

My camera does not have a separate setting for aircraft, but some cameras might

[JohnMoyer]

Canon_AFConfig_0x0018

https://cam.start.canon/hy/C003/manual/html/UG-04_AF-Drive_0050.html#AF-Drive_0050_5

Eye Detection
0 disable
1 enable

[JohnMoyer]

Code Select Expand

[MakerNotes:Camera] AFAssistBeam                : Unknown (4)
https://cam.start.canon/hy/C003/manual/html/UG-04_AF-Drive_0090.html#AF-Drive_0090_3

On EOS R5, it appears that "Unknown (4)" is:
"
[LED] LED AF assist beam only

Enables LED AF-assist beam firing by Speedlites equipped with this feature, when these flash units are attached. If your Speedlite is not LED-equipped, the camera's AF-assist beam is fired instead.
"

[JohnMoyer]

For EOS R5

Code Select Expand

exiftool -s -G0:2 -a -U -USMLensElectronicMF /Volumes/EOS_DIGITAL/DCIM/100CANON/IMG_990[5-8].CR3 
======== /Volumes/EOS_DIGITAL/DCIM/100CANON/IMG_9905.CR3
[MakerNotes:Camera] USMLensElectronicMF        : Disable in AF Mode
======== /Volumes/EOS_DIGITAL/DCIM/100CANON/IMG_9906.CR3
[MakerNotes:Camera] USMLensElectronicMF        : Enable After AF
======== /Volumes/EOS_DIGITAL/DCIM/100CANON/IMG_9907.CR3
[MakerNotes:Camera] USMLensElectronicMF        : Disable After AF
======== /Volumes/EOS_DIGITAL/DCIM/100CANON/IMG_9908.CR3
[MakerNotes:Camera] USMLensElectronicMF        : Unknown (3)
    4 image files read

https://cam.start.canon/hy/C003/manual/html/UG-04_AF-Drive_0110.html#AF-Drive_0110_1-1

It appears that "USMLensElectronicMF        : Unknown (3)" is "[Disable in AF mode] Disable in AF mode

Manual focus adjustment is disabled when the lens's focus mode switch is set to AF."

This might vary by type of lens attached.

[Phil Harvey]

This is great, thanks!  I've been quite busy recently but I'll add these when I get a chance.

- Phil

[JohnMoyer]

This is great, thanks!  I've been quite busy recently but I'll add these when I get a chance.

- Phil

No rush. Thanks again.

I just realized that the URLs I included are accidentally hy language instead of en. Editing the URL to en will get one the English version. My browser translated it for me, so I did not notice.

[Martin B.]

Hi,

I could replicate all of John's observations on my Canon R6 with ExifTool 12.76. (Thanks John!)

However, the wording of the USMLensElectronicMF values seems incorrect. ExifTool converts these values as follows:

Code Select Expand

2: Disable in AF Mode
0: Enable After AF
1: Disable After AF
3: Unknown (3)but the Canon user manuals for the R5 and R6, and the menu on my camera, look like this:

Code Select Expand

2: Disable after One-Shot
0: One-Shot->enabled
1: One-Shot->enabled (magnify)
3: Disable in AF modeNote in particular that ExifTool currently reports value 2 as Disable in AF mode. Reporting value 3 also with the same string would be confusing.

This is with firmware 1.8.3 of the R6, with a Canon RF 70-200mm F4L IS USM attached.
I checked the manual for firmware version 1.4, and the available settings for this were the same, so I doubt these values have changed meaning recently.

Reference for the Canon R5: Canon : Product Manual : EOS R5 : Customizing AF Functions : Lens electronic MF
Reference for the Canon R6: Canon : Product Manual : EOS R6 : Customizing AF Functions : Lens electronic MF (this section is identical to the R5)

[Phil Harvey]

Thanks.  I'll assume that the new definition for USMLensElectronicMF applies to all EOS R models, and treat them differently.  I'll also add the new values for other tags.  These changes will appear in ExifTool 12.86.

- Phil

[JohnMoyer]

Thanks.  I'll assume that the new definition for USMLensElectronicMF applies to all EOS R models, and treat them differently.  I'll also add the new values for other tags.  These changes will appear in ExifTool 12.86.

- Phil

Thanks!