how to clean view finder for Canon 40d

ddong · 1st of June 2009 (Mon)

I've searched for awhile for a solution but it doesn't look like I got anything really help.

Does anyone have any suggestions for how to clean viewfinder?

I saw 3 big black dots in my viewfinder and I am pretty sure it's not the sensor or mirror (mirror replaced last week). I even tried to use comp. air, but it didn't help.

Thanks

Wilt · 1st of June 2009 (Mon)

Quote:

Originally Posted by ddong

I've searched for awhile for a solution but it doesn't look like I got anything really help.

Does anyone have any suggestions for how to clean viewfinder?

I saw 3 big black dots in my viewfinder and I am pretty sure it's not the sensor or mirror (mirror replaced last week). I even tried to use comp. air, but it didn't help.

Thanks

Probably it is on the focusing screen. If so, it is a nuisance to you, but doesn't affect the picture. Focusing screen on 40D is removable, but it is also VEEEEERRRRRY delicate, so do NOT take out the screen and wipe/brush it. Do not touch the surface of the screen. If you must, remove the screen and put under running water (holding it by the edges only) and then rinse with distilled water (to prevent mineral buildup as it dries, and spotting) and then air dry with the screen standing on edge.

Smitty2001 · 1st of June 2009 (Mon)

Yea. it is removable. I did this on my XT. Five seconds to pop it out. One hour to put back in. :/

edit - This should help you a lot...

http://photography-on-the.net/forum/...d.php?t=417029

Wonder if i would have ordered a new XT focus screen that it would have included said tool. that would have helped a ton!

MDJAK · 3rd of June 2009 (Wed)

a simple few puffs with a rocket blower should do the trick. It does for me.

1st of June 2009 (Mon)	#1
ddong Member Join Date: Dec 2008 Location: Calgary, Alberta Posts: 405	how to clean view finder for Canon 40d I've searched for awhile for a solution but it doesn't look like I got anything really help. Does anyone have any suggestions for how to clean viewfinder? I saw 3 big black dots in my viewfinder and I am pretty sure it's not the sensor or mirror (mirror replaced last week). I even tried to use comp. air, but it didn't help. Thanks __________________ Flickr

1st of June 2009 (Mon)	#3
Smitty2001 Member Join Date: May 2008 Posts: 106	Re: how to clean view finder for Canon 40d Yea. it is removable. I did this on my XT. Five seconds to pop it out. One hour to put back in. :/ edit - This should help you a lot... http://photography-on-the.net/forum/...d.php?t=417029 Wonder if i would have ordered a new XT focus screen that it would have included said tool. that would have helped a ton! Last edited by Smitty2001 : 1st of June 2009 (Mon) at 21:49.

3rd of June 2009 (Wed)	#4
MDJAK ...the definition of a noob Join Date: Nov 2004 Location: New York Posts: 22,256 IMAGE EDITING OK	Re: how to clean view finder for Canon 40d a simple few puffs with a rocket blower should do the trick. It does for me.

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