Missing Meta Data

[Archive]

[Originally posted by cjsmall on 2006-06-18 18:20:02-07]

I'm using a Konica Minolta Maxxum 7D camera.  When I run exiftool
on my jpeg or raw image files there are a number of tag data items
that do not have values.  For example:

    DriveMode

    FocusArea

    FlashFired

    FlashExposureComp

    FlashMode

    FlashMetering

There are probably others, but these are the ones I quickly ran
across.  These are listed in the list of Minolta tags and
specifically for the 7D.  All are basic information, so I
would be surprised if Konica Minolta excluded them intentionally.

Does anyone have an explanation of why I am not seeing these?  Is
the data really not provided?

Thanks.

--

Jeffery Small

[Archive]

[Originally posted by cjsmall on 2006-06-18 19:03:58-07]

Following up to my own message, I see in the Minolta DiMAGE Viewer
that "Flash Compensation" and "Color Depth" are given.  I will attempt
to determine where these two items are located and report back.  I
also see entries for "Subject Program" and "Digital Subject Program"
which don't apply to this camera but might also be identified by
someone with another camera type (5D ??).  They also list "Light Source"
as "Auto/Custom" while exiftool reports this as "unknown (0)".  What
does Light Source actually tell us about the camera settings?  I still
do not see any info for flash or drive mode.

Jeffery Small

[Archive]

[Originally posted by exiftool on 2006-06-18 21:13:55-07]

Hi Jeffery,

There is certainly a lot of Minolta maker note information that is still unknown.  Anything you
could help decode would be useful.  You can use the -U option to display the unknown
information.  All of the Minolta tags currently decoded by ExifTool have been discovered by
other Minolta owners.

The tags you mentioned (DriveMode, FocusArea, etc) are used by some Minolta cameras,
but haven't yet been decoded specifically for the 7D (See
https://exiftool.org/TagNames/Minolta.html#CameraSettings7D" target="_blank">Minolta CameraSettings7D tags for a list of tags specificallyl decoded for the 7D).

LightSource is a standard EXIF tag (use the -G option to see where the information is
extracted from), and a value of 0 is defined as "Unknown", so this is what is reported
by ExifTool.  If the Minolta software reports something else, then they must be getting
this information from some of the unknown information in the maker notes.

- Phil