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Old Jul 7, 2011, 11:46 AM   #1
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Default couple specs in camera

Hello
I just noticed a couple specs of dust when I look in the viewfinder on my T3i.
I tried blowing it out and I cannot remove them.
I changed the lens thinking that was the issue but it was not. It looks like the specs don't show up on the photos which is good.

Thoughts?

Warren
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Old Jul 7, 2011, 11:57 AM   #2
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prob a piece of dust traped behind the glass off viewfinder had this on my d3000 also
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Old Jul 7, 2011, 12:06 PM   #3
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If the specs of dust are always sharply in focus, they're likely to be on the focusing screen above the mirror.
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Old Jul 7, 2011, 12:28 PM   #4
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Yes, I found them on the focusing screen. does it hurt the image to just leave them? Seems like if I try to remove them I just add more dust.
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Old Jul 7, 2011, 12:38 PM   #5
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Quote:
Originally Posted by warren83 View Post
Hello
I just noticed a couple specs of dust when I look in the viewfinder on my T3i.
I tried blowing it out and I cannot remove them.
I changed the lens thinking that was the issue but it was not. It looks like the specs don't show up on the photos which is good.

Thoughts?

Warren
Most DSLRs will have a few specs in the viewfinder if you look closely enough.
It could be dust on the mirror or focusing screen. If you can see it, you might
be able to blow it off with a simple squeeze blower. Don't use a tin of compressed
air.


If they are very small specs, I would just ignore them. If they are larger
specs which where in the camera when you got it, you might consider
sending it back to Canon for cleaning.
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Old Jul 7, 2011, 12:43 PM   #6
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I might just ignore the specs. tried blowing off with a hand squeeze blower but ended up adding another. Better off just ignoring them.

Thanks Much
Warren
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Old Jul 7, 2011, 1:23 PM   #7
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Quote:
Originally Posted by warren83 View Post
I might just ignore the specs. tried blowing off with a hand squeeze blower but ended up adding another. Better off just ignoring them.

Thanks Much
Warren
They won't do any harm. If they are on the bottom of the focusing
screen, a good blower should shift them.

There is always the risk that you will just move them to another
part of the camera like the image sensor or up into the pentamirror.
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Old Jul 7, 2011, 4:14 PM   #8
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When I get dust on the focusing screen, I clean it by turning the camera over, and swiping the focusing screen with a slightly dampened Q-Tip. You don't want it to be too damp, because you'd need to leave the lens off while the moisture evaporates. You don't want the Q-Tip to be dry either, because it might not pick up the dust particles.
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Old Jul 7, 2011, 4:16 PM   #9
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don't use any cleaning solution on the rebels focus screen, you will wipe out the focus points on them.
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Old Jul 8, 2011, 9:15 AM   #10
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Thanks everyone for the great input. I did around 300 shots and noticed that the specs did not affect any of my photos. I am too chicken to try to get them off so I am going to leave them until it gets worse then I will get it professionally done.

Thanks again
Warren
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