mrdale
Forum Enthusiast
You are worrying about a non issue. Dust on the sensor is a fact of life. What are you doing with your images ? Do you print them or just post them online ? In either case do you see the dust in the finished image (and I don't mean pixel peeping) ? No ? Ask friends if they see dust, they will most likely say no. I've owned my current camera for 11 years and never cleaned the sensor, I shoot in various enviroments from open ocean to deep forests. I'm more concerned about the front element of the lens in use and no I don't use a filter on my lens. Worry less, enjoy making images.
dale
dale