R

5 Messages

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116 Points

Mon, Oct 26, 2020 7:49 AM

Closed

Camera Raw/DNG Converter: "makernote" information lost when converting from CR3

Hi all.

According to the author of exiftool, "the DNG converter doesn't preserve the Canon makernote information when converting from CR3." (This is about EXIF info embedded into the CR3 file, not being carried over to the DNG...)

Are there any plans to add that feature to the DNG Converter?

Kind regards,

Ralf

5 Messages

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116 Points

1 y ago

Can someone from Adobe please at least confirm this has been read?

I don't know how else I could try to get this issue fixed, apart from posting here, so if I'm missing anything, please kindly let me know...

Many thanks.

Adobe Administrator

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1.2K Messages

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20.3K Points

You've done the right thing by posting your idea. Ideas for feature requests are tracked by votes. Now it's just a matter of waiting to see if it gets enough votes to be considered for implementation.

Fingers crossed!

5 Messages

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116 Points

Many thanks for confirming, Rick.

1.2K Messages

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18.6K Points

1 y ago

This may not be possible. The DNG spec has requirements for private data that obviously, RAW files don't have to follow. So makernote data may not be usable if just copied over verbatim from a CR3.

5 Messages

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116 Points

@lumigraphics , thanks for your response.

Phil Harvey, the author of exiftool, added the feature to copy the makernote data upon my request, please see his response on the support forum.

And this new feature seems to work well.

So maybe this helps getting the feature implemented in an upcoming version of the DNG Converter?

1.2K Messages

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18.6K Points

I'm not sure what the butchery part is, the DNG spec is public and you can read the requirements in the DNG standard. I suspect that Canon's makernotes don't conform to the DNG spec and that's why its done this way.

5 Messages

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116 Points

I simply can't comment on your response. I have ZERO clue about these specs and the topic in general, so I don't even have a rough idea about where exactly the problem is, "whose fault it is," and how hard it would be to fix it.

From a user's perspective, the case seems clear: DNG can contain (part of) that info, and it is possible to copy the info from the CR3 into the DNG, as I've seen myself by using "exiftool."

So I would naively think Adobe could modify the DNG Converter to do the same. That would help many, many users. Of course, from a commercial point of view Adobe may be better off selling recent versions of their software which can deal with CR3 "natively"... ;-) :-(