I whish it was possible to view raw files in cpg, like DNG or NEF.
Would that be difficult to implement or is it rather a question of the capabilitys of Imagemagick?
Manipulation of images is limited by the capabilities of the software that is installed on the server. If a server based manipulation program exists for those formats, it would be possible to add support for that program into coppermine, but it is not something coppermine can do by itself.
but RAW files are so massive uploading them on the web would be such a waste of bandwidth....