On Thu, 27 Jun 2002 19:11:06 +0800, "Agva" wrote:

>When I tried to take sky shots today, I notice there are a few dust
>particles (black ones) visible in the viewfinder. Took out the lense and
>used a blower to clean, later used some lense cleaning tissue to wipe it
>off. Using a Nikon F55
>
>Things got worst, I could see more dust particles via the viewfinder, after
>much of observation, I notice that the dust particles have gone to the other
>side of the prism, question is how do I clean it? Is there a way which I
>could clean it by dismantling the unit? Or is it best to send it back to
>Nikon?

As others have pointed out, the dust is in the viewing
system. It is VERY unwise to ever blast air into the
open camera front with the mirror down - dust is forced
up above the viewing screen where it is not removable
unless the screen is removable, or, if not, with a
fairly major disassembly... Also, NEVER touch the
delicate front-silvered mirror. Do NOT attempt dismantling
the camera yourself, or you will have an interesting
pile of parts to remind you not to do that again...;-)