digiKam is photo manager application works on Linux, MAC OS X, Windows. digiKam capable of importing pictures from digital cameras, and mass-storage. Also, you can use it to enhance and modify pictures. Check digiKam full features.
digiKam 2.4.0 brings support to many digital cameras support RAW files such as Fuji FinePix F600EXR, Nikon Coolpix P7100, Olympus E-PL3, Olympus E-PM1, Panasonic DMC-FZ150, Sony NEX-5N, Sony SLT-A65V, and Sony SLT-A77V. Right sidebar now includes 3 separated colors diagram to display RGB histograms for better comparison, channel by channel. Check the full changelog Here.
Install digiKam 2.4.0 On Ubuntu 11.10 Oneiric Ocelot Using PPA
sudo apt-add-repository ppa:philip5/extra
sudo apt-get update
sudo apt-get install digikam
digiKam Repository source.
Download digiKam 2.4.0 tarball package.
digiKam 2.4.0 release announcements.