I have a Canon 1Ds Mark 3 camera and despite my best efforts several dust spots on the sensor will not go away. Manual cleaning with a large Giottos bulb duster and repeated camera sensor cleanings later the spots are still showing up in pictures. Are Photographic Solutions sensor swabs with Eclipse 2 (Type 3) worth trying? I do not have Adobe Photoshop and cannot remove the spots with GIMP. The swabs can be found here.