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klrbee25

Naples, US
1386 posts

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klrbee25 Silver Member Nikonian since 03rd Jun 2006
Sat 22-Sep-12 02:33 AM

Has anyone removed their focus screen for cleaning? While I clean the sensor all the time, I've never tackled the focus screen. After this past trip, I have a couple dust bunnies sitting on top of it and need to get it spotless again. I've seen some D3/D700 removal videos on YouTube but I'm reluctant to give it a go without a little more research first.

Thanks,

-Alex Rosen
www.flickr.com/photos/klrbee25/

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Robman3

West of Santa Monica, US
1842 posts

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#1. "RE: Focus Screen Removal" | In response to Reply # 0

Robman3 Registered since 12th Apr 2010
Sat 22-Sep-12 01:07 AM

Hi Alex,

I have the same problem with the D3S today.

When I bought it, the sales guy put the architectural grid in at the store, not sure if he has a special tool, so I would also like an answer for future reference.

Rob

Visit my Nikonians gallery.

Visit my Nikonians gallery.

Visit my Nikonians gallery.

klrbee25

Naples, US
1386 posts

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#2. "RE: Focus Screen Removal" | In response to Reply # 0

klrbee25 Silver Member Nikonian since 03rd Jun 2006
Sat 22-Sep-12 04:24 PM | edited Sat 22-Sep-12 04:25 PM by klrbee25

It appears it works the same as the D700/D3 where a retainer bar holds it in place. The bar clips under the latch in the center of the screen when you hold the camera upside down and look into the shutter box. The latch is in the cutout in the foam along the top-front edge. I think I'm just going to send it in for cleaning...there shouldn't be dust up there anyway and Nikon can take care of it. I'd guess it's their fault and didn't get it cleaned well during my AF adjustment and 'cleaning' a couple months ago.


-Alex Rosen
www.flickr.com/photos/klrbee25/

Visit my Nikonians gallery.

InsaneO

Encino, US
395 posts

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#3. "RE: Focus Screen Removal" | In response to Reply # 2

InsaneO Registered since 09th May 2012
Tue 25-Sep-12 03:28 AM

Do you actually see the dust?
If you do and you think it is just a dust and not something else like dead bug or oil just go to your art store and get $3 softest nylon brush they have.
Make sure it is a nylon. Wash it with soft soap at least 3 times and let it dry because it has glue on it. All you need now is something with high velocity air. I use http://www.adorama.com/CPDVED.html?kbid=912610 though I paid a lot less.
Just blow this filtered air on the brush for a few seconds until it statically charges. It will remove dust from the mirror and censor too.
This brush is my standard part of the cleaning kit.

klrbee25

Naples, US
1386 posts

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#4. "RE: Focus Screen Removal" | In response to Reply # 0

klrbee25 Silver Member Nikonian since 03rd Jun 2006
Tue 25-Sep-12 08:24 AM

I've cleaned the mirror as well as the bottom of the focusing screen and viewfinder. The dirt (it's somewhat bigger than dust) is still visible on the matte through the viewfinder. It's somewhere between the viewfinder on the back of the camera and the top of the focusing screen. Not brushable unfortunately.


-Alex Rosen
www.flickr.com/photos/klrbee25/

Visit my Nikonians gallery.

InsaneO

Encino, US
395 posts

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#5. "RE: Focus Screen Removal" | In response to Reply # 4

InsaneO Registered since 09th May 2012
Wed 26-Sep-12 05:13 PM

>I've cleaned the mirror as well as the bottom of the focusing
>screen and viewfinder. The dirt (it's somewhat bigger than
>dust) is still visible on the matte through the viewfinder.
>It's somewhere between the viewfinder on the back of the
>camera and the top of the focusing screen. Not brushable
>unfortunately.

Or it could be on the prism itself.

klrbee25

Naples, US
1386 posts

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#6. "RE: Focus Screen Removal" | In response to Reply # 5

klrbee25 Silver Member Nikonian since 03rd Jun 2006
Wed 26-Sep-12 07:36 PM | edited Wed 26-Sep-12 07:37 PM by klrbee25

Yeah, the prism is smack inbetween them (viewfinder and focusing screen). The camera just got to Nikon so we'll see how they do.

-Alex Rosen
www.flickr.com/photos/klrbee25/

Visit my Nikonians gallery.

G