LHRSIMON
Topic Author
Posts: 1314
Joined: Sat Apr 27, 2002 5:59 am

Dust Spot On Eye Piece

Fri Mar 18, 2005 11:36 pm

Hi all.

Just got back from shooting a few photo's in my lunch hour at LHR seeing as its so sunny for once Big grin

Anyway half way through the shoot i noticed 2 great big black spots. Great i thought i have some huge lumps of dust on my sensor. Anyway i opened the body and gave a few blasts with the air brush. One of the dots went.

But i tried and i tried and i could not get rid of the second big black spot. I took a couple of images to see what the effect of this spot was on the photo but to my surprise the dot does not appear on the photo's...

So this spot i gather must be somewhere in the view piece system. Im very relieved that its not on the sensor but its flippin annoying that every time i look through the eyepiece i see this great big black dot....

Has anyone else had or heard of this problem. And maybe how to solve it.

Simon C ....

PS : I may go one week without a problem sometime !!!!  Sad
Canon 1D Mk III,Canon 20D+17-40 L f4.0,70-200 L IS USM f2.8,400 L USM f5.6,135 mm L f2.0, 50 mm f1.8,1.4 x II extender
 
Tin67
Posts: 267
Joined: Mon May 10, 2004 3:49 am

RE: Dust Spot On Eye Piece

Sat Mar 19, 2005 12:31 am

Simon,

Check your focusing screen, if you can see it through the view finder and it's not on the photo it's most likely on there. Either that or inside on the prism or eyepiece.

Martin
 
Staffan
Posts: 3879
Joined: Tue Mar 18, 2008 9:21 am

RE: Dust Spot On Eye Piece

Sat Mar 19, 2005 12:34 am

I never bother when I get dust on the focusing screen, it has no effect on the images and usually disappears on its own.

Staffan
 
mygind66
Posts: 1033
Joined: Sun May 02, 2004 7:13 am

RE: Dust Spot On Eye Piece

Sat Mar 19, 2005 12:37 am

Simon..

If it's not in the lens/sensor direction should be in the mirror/viewfinder system.

Good luck...

Enrique
 
LHRSIMON
Topic Author
Posts: 1314
Joined: Sat Apr 27, 2002 5:59 am

RE: Dust Spot On Eye Piece

Sat Mar 19, 2005 1:18 am

Im not going to start poking about the glass inside the camera. I have had enough problems already with my lenses so i don't want to screw the camera up... I think i will follow what Steffan said and leave be and hope it works its way free !! Mind you knowing my luck at the moment it would probably fall onto my sensor Big grin

Cheers all
Simon C
Canon 1D Mk III,Canon 20D+17-40 L f4.0,70-200 L IS USM f2.8,400 L USM f5.6,135 mm L f2.0, 50 mm f1.8,1.4 x II extender
 
Psych
Posts: 2944
Joined: Tue Nov 16, 2004 1:17 am

RE: Dust Spot On Eye Piece

Sat Mar 19, 2005 2:23 am

Hi Simon,

I hate seeing anything at all that shouldn't be there - even when it doesn't appear on the photo. If you take off your lens and turn the body upside down you should be able to get a good view of the focusing screen - certainly enough to be able to see if that's where the offending bit is. If you get a positive ID it may then be a simple case of giving that screen a blast with your blower. Pretty hard to do any kind of damage - so long as you're not using air from a can directed at the shutter curtain itself. Do that at the right angle and the bit should be blown out of the body, rather than simply 'repositioned'.

Anyway, good luck with that. At least, as you say, it's not on the sensor.

All the best.

Paul
 
GBOAB
Posts: 353
Joined: Mon Mar 22, 2004 12:29 am

RE: Dust Spot On Eye Piece

Sat Mar 19, 2005 3:34 am

Simon

It is annoying but does not affect the end result, I also have a piece of
black dirt in the viewfinder of my Canon 1D MkII but can find no way of shifting it.
Talking of dirt/dust, has anyone found any problems with dust particles behind the LCD screen & the LCD Panel, the only way I can think it has got into the camera is through the buttons to the left of the screens, has anyone got any suggestions on how to get rid of it.

Cheers

Ian
Concorde's gone but not forgotten
 
Lindy
Posts: 4722
Joined: Wed May 19, 1999 10:42 pm

RE: Dust Spot On Eye Piece

Sat Mar 19, 2005 4:04 am

Quoting Psych (Reply 5):
Pretty hard to do any kind of damage

Then I have to be pretty good, because I managed to scratch it with my clumsy fingers  Smile
I also had some dirt on my mirror and I tried to remove it with my finger, after that I had to remove that mirror. It was my old film Nikon N50 so the replacement cost was about $70. It didn't effect pictures but it was very annoying to look thru it.

I've learned one valuble thing. Don't ever touch anything inside of your camera unless you know what you doing.

Rafal
BWIADCA - Nikon D100

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