RE: dust in my view finder...

[Alan Chan]

If you can see the dust through the viewfinder but can't blow them away, 
they are trapped between the prism and the screen. If the dust looks "sharp" 
through the viewfinder, they are on the upper side of the screen. Don't ever 
use compressed air can because it might blow some nasty stuff onto the 
screen which will be damaged for good. Use a hand blower only. If you know 
how to remove the screen, you can blow off the dust.  If the dust won't come 
off, just flush the screen with warm tap water, then blow off the water 
drops carefully. Never every touch the surfaces of the screen with anything.

Regards,
Alan Chan
http://www.pbase.com/wlachan
I am having problems with dust and hair looking bits being visible in both
the viewfinder of my *istD and one of my Z-20's.  I have blown them out 
with
compressed air, but to with no avail.  I am not sure if it is on the mirror
or the pentaprism - any suggestions?  I know that it doesn't affect the
image that comes through the lens, but it is a pain in the butt to look at
when I am shooting!
_
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Re: dust in my view finder...

[Peter J. Alling]

It's funny, you learn this by having an MX or LX, at least I did, the 
offending matter may be on the reverse side
of the focusing screen.  In a camera with a removable focusing screen 
it's a relitively simple matter to clean
the back side of the screen.  Otherwise it's a pain.  (On the LX you can 
get dust between the prizim and the
body, but that's another story).

Tanya Mayer Photography wrote:

I am having problems with dust and hair looking bits being visible in both
the viewfinder of my *istD and one of my Z-20's.  I have blown them out with
compressed air, but to with no avail.  I am not sure if it is on the mirror
or the pentaprism - any suggestions?  I know that it doesn't affect the
image that comes through the lens, but it is a pain in the butt to look at
when I am shooting!
tia,
tan.