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07-12-2009, 03:22 AM   #1
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Dirty viewfinder

Hi there,

Everytime I look through viewfinder I see some small hair and few spots. It does not affect image quality anyway but still I want my camera to be clean. As I understand dust and hair is on matte plate , right? So how can I clean it? What is more I see some dust on mirror. Curiously enough sensor seems to be fine.
Thank you

07-12-2009, 04:19 AM   #2
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I would advise you to not bother too much with dirt in the viewfinder, but if you want to clean it anyway, you should try to blow the dirt using a rubber blower; donīt use anything else. Same for the mirror.

First, gently blow the external surface of the viewfinder and see if the dirt has gone away; if not, the dirt is on the other surface and you have to release the lock of the viewfinder frame to access it. Take a look at this video clip to get an idea on to do this (the movie is about replacing the focusing screen but the procedure is similar as to the required for cleaning):

http://www.youtube.com/watch?v=YqZCjT-jr1s&feature=PlayList&p=D15A94962D5225...rom=PL&index=5

Also look here for instructions about unlocking the viewfinder frame:

http://www.focusingscreen.com/work/kmen.htm

Please, be careful; not a difficult op. but consider that you may damage the viewfinder or the frame because of some insignificant dirt spots that don't affect your photos or focusing procedures.

Last edited by Manel Brand; 07-12-2009 at 04:35 AM.
07-13-2009, 09:52 AM   #3
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I agree. A simple blow to the uinderside of the focus screen is fine, but anything beyond that is likely to do more harm than good. Viewfinder dust is a fact of life with SLR's - always has been.
07-13-2009, 08:40 PM   #4
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QuoteOriginally posted by Marc Sabatella Quote
I agree. A simple blow to the uinderside of the focus screen is fine, but anything beyond that is likely to do more harm than good. Viewfinder dust is a fact of life with SLR's - always has been.

You got that rite! I just put a new jinfinace focusing screen in my K10D and I got some specs. I tried very hard to take extra care and used a blower on top of that and I still got dust!

Now I don't feel so bad!

07-13-2009, 08:49 PM   #5
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I gave up attempting to clean the viewfinder two bodies ago. Every time I cleaned it, it was worse, and when I scratched the new grid screen I put in the SF-1, I stopped doing more than blowing the dust around.
07-13-2009, 10:49 PM   #6
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QuoteOriginally posted by Canada_Rockies Quote
I gave up attempting to clean the viewfinder two bodies ago. Every time I cleaned it, it was worse, and when I scratched the new grid screen I put in the SF-1, I stopped doing more than blowing the dust around.
What is the SF-1?
07-13-2009, 11:43 PM   #7
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QuoteOriginally posted by res3567 Quote
What is the SF-1?
I would say that's the Pentax SF1 also known as Pentax SFX.
07-14-2009, 09:14 AM   #8
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Which is to say, a 1980's era film camera.

07-15-2009, 03:17 PM   #9
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I don't even see the dust in my viewfinder, even though it's there. I guess my brain filters it out
07-15-2009, 06:11 PM   #10
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QuoteOriginally posted by Marc Sabatella Quote
I agree. A simple blow to the uinderside of the focus screen is fine, but anything beyond that is likely to do more harm than good. Viewfinder dust is a fact of life with SLR's - always has been.
I had the carcass of a tiny little spider inside my K110D viewfinder. Little f-er. At least it could have died on one of the autofocus points.

LOL.
07-18-2009, 12:18 AM   #11
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QuoteOriginally posted by Marc Sabatella Quote
Which is to say, a 1980's era film camera.
Thank you Marc.
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