Dust on sensor

Uh oh - time to get the blower out, I think. These dust spots aren't causing too much of a problem yet,you can't really see them on normal photos, but it's probably time to give it a bit of a clean.

 

How to see how dirty your camera's sensor is:

 

1. Take a photo of a clear sky or other blank subject at f22.

 

2. Open the picture up Photoshop and run Auto-levels

 

Et voila, you can see just how dirty your sensor has got.

Done