[Digikam-users] re JPEG lossiness, PNG

[Peter Mc Donough]

> > Well with DCRAW, my Olympus SP550uz is, my Olympus E-450 is (was)
> > not listed as supported.
> > With DNG-RAW no problem.
> 
> OK, not listed, but it may work anyway. Did you try it? If it did not
> work did you provide sample files to Dave Coffin for him to implement
> the support?

No, I didn't. When I bought the camera, at that time I used jpeg - it 
was a special offer and has suited my idea of a DSLR since - there were 
at least three newer Olympus DSLR camera model generations. 
Later I gave RAW a try and browsing the web I couldn't find any demand 
for a RAW profile of my "new" camera, so asking for one especially for 
me seems to be a waste of the "resource" Dave Coffin.

In fact, Digikam could read the original raw file and I didn't notice 
any problems. On the other hand, I don't know enough about RAW files for 
deciding what, if anything, was missing or faulty. 

What I read in the web was an unhappiness about propriatary RAW formats.
There may be a good reason for propriatary formats - the obvious one I 
see and don't like is that a user may stick to one brand because his 
valuable photos are of in a certain RAW type.

What brough me to Adobe DNG were several discussions, among them:

http://mansurovs.com/dng-vs-raw

The version I have, DNGConverter 6.5, runs under standard Wine in 
Opensuse 11.4 64bit and of course in virtualized Windows XP.

I am very pro open standards and when I buy my next camera I will check 
before whether its RAW format is supported under Linux.

Peter