I'm having great difficulty trying to remove annoying tiny specs from within the mirror compartment (behind the viewfinder), and having previously had experience of removing the viewfinder (from another Alpha) I don't really want to go down that route again (fiddly don't come close and my pro photog mate, who's always had and works with Nikon's, was amazed at how it was put together; not very well), anyway I've tried optic cleaning cloths, a blower, small cleaning brush and even my charged sensor brush, but still only seem to shift the crap about, the sensor's clean.

Any ideas please?