"Camera settings" view request

[Beholder3]

I'll mail the spreadsheet to you next weekend.

Regarding the LensMake thing I was to quick:
I can't make it work using your suggested composite tag.
It returns me the message "no writable tags found".

If I change the source field from LensID to exif:LensModel it works though:

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        LensManufacturer => {
            Require => 'exif:LensModel',
            ValueConv => '$val =~ /(pentax|tamron|sigma)/i ? $1 : undef',},
and the command

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-exif:LensMake<LensManufacturer

The same error occurs when using makernotes:LensType as source.

I guess those fields are actually codes and the string operation fails.

[Phil Harvey]

Right.  There is no such tag as EXIF:LensMake.

Check the tag name documentation for a list of available tags.

- Phil

[Beholder3]

Right.  There is no such tag as EXIF:LensMake.

Check the tag name documentation for a list of available tags.

Confused 

There is this tag. It's even documented by yourself... as 0xa433. And I can use it.
As I said, it works when it is filled by taking the data (via composite tag) from "exif:LensModel" and not from "LensID" as your code suggested.

[Phil Harvey]

Ooop, sorry.  You're right.  I forgot about that new tag added in the Exif 2.3.

In that case I need more specific information to be able to figure out what is going wrong.

What happens when you run exiftool -lensmodel -lensmanufacturer on your file?

- Phil

[Beholder3]

Using the command and code cited by me in the above post it returns:

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Lens Model : Sigma 8-16mm F4.5-5.6 DC HSM
Lens Manufacturer : Sigma
As it should.
The command -LensID gives the exact same output as -LensModel by the way.

Once I change the config file back to use "LensID" the command -lensmanufacturer gives no special output at all. If I run exiftool -exif:LensMake<lensmanufacturer then I get the message

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the system can't find the specified file.

[Phil Harvey]

So the LensManufacturer tag is working correctly.  One problem I can see is that your command:

  exiftool -exif:LensMake<lensmanufacturer

requires quotes around the argument, like this:

  exiftool "-exif:LensMake<lensmanufacturer"

Otherwise the "<" symbol will be interpreted by the shell, causing a redirection of the file "lensmanufacturer" to stdin, and resulting in the error.

- Phil

[Beholder3]

Well, the lensmanufacturer tag is only working well if using the exif:LensModel.
Using the LensID I get the following error now (when typing it in correctly as exiftool "-exif:LensMake<lensmanufacturer"):

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Warning: No writable tags found - PICTURE.JPG

I can perfectly live with using exif:LensModel.

Just if you think, it should also work with using LensID as the input giving data field for the composite tag then this would be an issue at least for me because I can' t make it work.

[Phil Harvey]

Right.  This is what I get for replying from the cottage where I can't test things out.

We need to use the print-converted value ($prt[0]) for this to work:

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        LensManufacturer => {
            Require => 'LensID',
            ValueConv => '$prt[0] =~ /(pentax|tamron|sigma)/i ? $1 : undef',
        },

- Phil

[Beholder3]

Yep. This now works perfectly.

Thanks for all the support.

I'll now shut up and let you enjoy your cottage days.