I posted this in General technical discussion, but it probably belongs here. I have a lot of specks of dust etc. that is visible through the viewfinder. I took a few photos of a white background and there is no visible specks or spots anywhere in the pictures. This started out with a couple of specks on the ridged piece behind the viewfinder. I tried blowing ,using a brush,a piece of microfiber and it is worse than i started out. I went to the camera store and got a rocket blaster, and it still doesn't work. I think these specks are firmly entrenched on the piece behind the viefinder inside the body.It's a fine checkered type of glass. Anyone have any ideas on how to clean this. It appears to be just on the viewfinder bit and doesn't affect pictures, it's just annoying. The fact that it's worse than i started makes it twice as bad. Lens cleaning fluid on a clean cloth maybe. Or do i send it in to Nikon.