Hi phil,
I have Problems with the Makernotes in 6.83, stable version is hmmm sometimes OK.
Im mostly using a template-file with -p ... an often Tag values appears as "0". At commandline
sometimes warnings like
[minor] Adjusted MakerNotes base by 33
Invalid CanonCameraSettings data
[minor] Tag 'ImageStabilizer' not defined
are displayed.
The best Version for me seems to be the 6.68

2 template lines:

Cam: $Model (${ShutterCount}) ... Linse: ${Lens} @ ${FocalLength}
${ShutterSpeed} s ... F $Aperture ... ISO $ISO ... EV: $ExposureCompensation ... Focus: $focusmode

thnx, bozi