LightZone is digital darkroom photo editor. It can handle the workflow when handling images in various RAW formats. It is comparable to Adobe's Lightroom.

be advised that LightZone is a Java-based program, so you'll have to install Java first.

Then install an appropriate package:

Lightzone DEB

GIMP

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LightZone homepage

LightZone forum

Lightzone DEB post

LightZone discussion thread

WikiPedia:LightZone