Thanks Alex, I checked back with gphoto2 and it worked perfectly in the command line mode! Actually last time I tried to use gtkam and it could not add the camera although it detected the camera correctly. I still have this problem, it says 'could not initialize camera' when I try to add the camera detected by gtkam. Any idea what's going on? Arko. > http://sourceforge.net/project/shownotes.php?release_id=290239 > > it's working w/ gphoto2 version 2.1.5. > > apprich@elmstreet apprich $ gphoto2 --list-cameras | grep "Canon > PowerShot S1 IS" > "Canon PowerShot S1 IS (PTP mode)" > > apprich@elmstreet apprich $ gphoto2 -v > gphoto2 2.1.5 > > Copyright (c) 2000-2004 Lutz Mueller and others > > gphoto2 comes with NO WARRANTY, to the extent permitted by law. You may > redistribute copies of gphoto2 under the terms of the GNU General Public > License. For more information about these matters, see the files named > COPYING. > > This version of gphoto2 is using the following software versions and > options: > gphoto2 2.1.5 i386-redhat-linux-gcc, popt, exif, no > cdk, no aa, jpeg, readline > libgphoto2 2.1.5 i386-redhat-linux-gcc, EXIF, no ltdl, > /proc/meminfo > libgphoto2_port 0.5.1 i386-redhat-linux-gcc, USB, serial > baudboy locking, no ltdl > > > > > Arko. > > > > Alex >