Wash Me

Check if your sensor needs cleaning: Set your camera to Aperture priority, at f/22, and take a shot of a cloudless blue sky (focus not important)... If you see specs, you need to clean your sensor...

 

There is a tutorial here: www.copperhillimages.com/index.php?pr=tutorials

 

(Yes, there is still a spec on the after pic.. I got it off, but was using white paper to check then, and I wanted the before/after pic here to be the same color)

Done