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Thread started 22 Jul 2012 (Sunday) 12:27
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Dirt while looking in eyepiece

 
bent ­ toe
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Jul 22, 2012 12:27 |  #1

But not on the pictures, i've tested with 3 different lenses to see if it was the lens.
It's not the lenses, not the sensor.. and i cleaned the eyepiece and it's glas.. it's still there.

What to do and how in #ยค%& did it get in there?

Should i just leave it?


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Jul 22, 2012 12:29 |  #2

have you checked the mirror?


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Jul 22, 2012 12:46 |  #3

maverick75 wrote in post #14752395 (external link)
have you checked the mirror?

How do i do that?

Scared ****less to even look into the camera while lens is off, i take it VERY careful.. but i do see the mirror in there, could i use blower or something?


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mak65
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Jul 22, 2012 13:01 |  #4

Remove the lens. You'll be staring at the mirror when you look in the camera. Do you have a hand blower? If so, turn the camera face down and blow air onto the mirror. Don't insert the blower end into the camera as accidentally touching the mirror could scratch it.

As you have found dirt on the mirror will not affect your images so if it doesn't come off it won't hinder images.




  
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Jul 22, 2012 13:02 |  #5

mak65 wrote in post #14752503 (external link)
Remove the lens. You'll be staring at the mirror when you look in the camera. Do you have a hand blower? If so, turn the camera face down and blow air onto the mirror. Don't insert the blower end into the camera as accidentally touching the mirror could scratch it.

As you have found dirt on the mirror will not affect your images so if it doesn't come off it won't hinder images.

I tried it with one of those handblowers where you squeez it to blow air (comes in those basic cleaning kits) i believe it's the same you mean.. or?
Anyway.. nothing happen, the dirt is still there. :cry:


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John ­ from ­ PA
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Jul 22, 2012 13:14 |  #6

The mirror reflects light that enters the lens upwards to the bottom of the focusing screen. It will be in the upper area of the lens cavity and paralle to the bottom of the camera. See if the dust is in that area. Don't be afraid of touching the sensor which isn't exposed unless the mirror flips up. You would have to trip the shutter or initiate a mirror lockup for that to happen. Of couse take care to not move any dust further into the camera body with the blower. Personally I prefer to use a camel hair artist brush to clean the mirror or focusing screen. That technique dates back to the days of 35mm DSLR's but I find it still works well.




  
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Jul 22, 2012 13:44 |  #7

John from PA wrote in post #14752540 (external link)
The mirror reflects light that enters the lens upwards to the bottom of the focusing screen. It will be in the upper area of the lens cavity and paralle to the bottom of the camera. See if the dust is in that area. Don't be afraid of touching the sensor which isn't exposed unless the mirror flips up. You would have to trip the shutter or initiate a mirror lockup for that to happen. Of couse take care to not move any dust further into the camera body with the blower. Personally I prefer to use a camel hair artist brush to clean the mirror or focusing screen. That technique dates back to the days of 35mm DSLR's but I find it still works well.

Ok, Will try that. How can you guys see anything in there? Are you using flaslight and magnifyglas?


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John ­ from ­ PA
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Jul 22, 2012 14:14 |  #8

Yes, a bright light would be beneficial.




  
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macroimage
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Jul 22, 2012 14:17 |  #9

The dust you are seeing probably isn't on the mirror as the mirror surface would be way out of focus. Viewfinder specs are usually on the focus screen and can be on the underside or the top side. The underside ones will probably come off using a rocket blower but the upper side ones you will have to live with or have a camera shop clean it. Cameras always seem to get this. It is annoying but doesn't affect the pictures. If you clean it, it will happen again anyway.


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Dirt while looking in eyepiece
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