[Digikam-users] lost all tags on canon raw images

[Andrew Goodbody]

Jim Dory wrote:
> Well, I just looked at DNG and it seems to work okay writing tags to 
> metadata. I used the DNG converter under tools to convert a cr2 file. It 
> shaved the image down from 7.5 MB to 6.9MB. Not significant for my Canon 
> 30d but maybe if I upgrade to the much larger image size of say the 7D, 
> then it may start getting important. I did a brief google on the subject 
> and I didn't find that it has any deleterious effects so far - maybe 
> some more research is in order. Had you considered doing that and if so, 
> why did you reject it? It is one more (or a couple) steps in post 
> processing which isn't great.

I tried converting a .cr2 file to .dng. I then imported both files into
ufraw. The results were not the same. This shows that the data is being
processed in some manner. As the point of shooting in raw is to have
unprocessed data available I will not use .dng.

Andrew