Originally posted by stevebrot And a vacuum cleaner sucks dust from the room into the mirror box
Yes... That's the best place to try to clean your camera, in a dusty room. Please hear the cynism in that one.
I admit to being very vague about vacuming my mirrorbox:
You have to be sensible about using a vacuum cleaner, just like you have to be sensible about using blowing in the mirrorbox. You can't use a blowdryer on full power either. That's why they invented the rocket blower. For the same reason they invented those nice vacuum cleaner attachments. I use one with a very fine nozzle on low flow. And it's done best in a room that contains no dust. We all know the bathroom air is completely free of dust particles ~10 minutes after we take a shower, right?
Anyhow, if you can live with the dust, do it. I'm too autistic to be able to live with dust sitting in my VF. I can't look through it, only at it. Best thing I ever did was replacing my stock focussing screen with a Katzeye with no lines at all. And turn off all information on my other camera's EVF. Only then can I emerge myself fully in what I'm looking at.
Btw, those people that put a screen protector on their brand new smartphone with all kinds of dust and other &%&$ sealed in between...