I notice my pictures in the late spring through early fall pick up a great deal of humidity noise in the picture. Optics and sensor are cleaned regularly. I also will add that the pictures I see the most noise as as expected longer distances. I had some great opportunities this past weekend shooting an Osprey while he was fishing but when I ghot home and downloaded them they were full of noise, every single shot. Close up pictures are not effected as noticable as long shots but there is still some noise as well. Is there a filter I can use to help eliminate this effect? Is there something else I can do to stop the noise? Thanks.