I was at a local ski resort over this past weekend taking photos of the skiers and snowboarders.
There was of course, lots of snow and blue sky. When I got home and started to process the images
I noticed the telltale signs of a dirty sensor. I had a lot of spots showing up in the blue sky that
I had to fix. So I took this sky shot at f/22 to make the spots show up even more and let me know how bad it was. Obviously, I need to give it a good cleaning.

Here's an image taken after using a Rocker Blower




Here's another image after using the Pec Pad and Eclipse cleaning fluid.