Quote Originally Posted by hotshot
Nah. They can get dirty quick. Even if you never take the lens off, the act of zooming makes a kind of vacuum that sucks in dust. The only way to avoid that is to use gasketed lenses. Also, dont ever change lenses in your car, probably the dustiest place on earth.

Those black spots in the upper right hand corner is dust. Just get you one of them compressed air cans and hit your sensor with it. Just be careful

I'll do that, I appreciate the advice- reps