panasonicraw "Lens attached" tag

[Hubert]

Hi,

I'm using a Panasonic GX-9 with a non-electronic lens and ExifTool is showing a "Lens Attached" tag with a value of "No". I'm not absolutely certain, but I suspect this may be causing Affinity Photo to ignore the lens data that I'm writing to the images with ExifTool.

I previously used a GX-7 and this tag does not appear in similar images taken with it. I've since sold the GX-7 but there was a specific menu setting when using non-electronic lenses. As far as I can see this isn't present in the GX-9's menus, the camera just works with any lens.

So my question is: is there any way of removing the "Lens Attached" tag from the GX-9 images? I don't know if will achieve what I want, but I'd like to give it a try if I can.

Thanks!

[Phil Harvey]

Did you try this?:

exiftool -lensattached=yes FILE

If this doesn't work, send me a sample and I'll take a look (philharvey66 at gmail.com)

- Phil

[Hubert]

Thanks Phil, unfortunately I'm getting the following:

Warning: Sorry, lensattached is not writable
Nothing to do.

I'll email you an image.

Best,

H

[Phil Harvey]

Hmmm.  But the documentation shows this as writable.  I'll have to look into this...

- Phil

[Hubert]

Thanks Phil!

H

[Phil Harvey]

It turns out that these aren't writable for a reason.  It will be a fair bit of work to support writing of the PanasonicRaw CameraIFD directory because it doesn't follow the TIFF specification in a couple of different ways.

For now, I have updated the CameraIFD Tags documentation to reflect the fact that they aren't writable, but I'll see what I can do about adding this ability.

- Phil

[Hubert]

Thanks Phil, it would be great if you could, but it's not a huge priority for me.

Best,

H