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06-07-2009, 10:03 AM   #1
Dom
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Have I got oil on my sensor?

As the thread title asks. Have I got oil on my sensor?



06-07-2009, 10:06 AM   #2
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Dust spots.

Try to clean with a blower first if you have one.

This does tend to shift most things.
06-07-2009, 10:06 AM   #3
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well I cant say that its oil, but you certainly have something on your sensor. it doesn't look like its the lens.
06-07-2009, 10:09 AM   #4
Dom
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I gave the camera 10-15 dust removal cycles and it's still there.

06-07-2009, 10:13 AM   #5
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If you haven't got a blower get one. I've got one and an arctic butterfly I use these for cleaning.

I'm going through Chester tomorrow, I've got half an hour between train connections. So if you can be about at 4ish I can run through it with you if you like.
06-07-2009, 10:18 AM   #6
Igilligan
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They do not look like any dust I have seen

They look very different from the dust I have seen on my sensor...

Why would you have suspected oil? Did something get sprayed around the camera?
06-07-2009, 10:19 AM   #7
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simple question, but have you tried changing lenses and taking a photo?
06-07-2009, 11:21 AM   #8
Dom
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I've dug out my Dad's old brush blower (don't worry I took the brush off) and went to town on the sensor. It's improved a bit, so I think it's a trip to get a rocket blower and go nuts in there.

Yes I've changed lenses.

06-07-2009, 11:23 AM   #9
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QuoteOriginally posted by Igilligan Quote
They look very different from the dust I have seen on my sensor...

Why would you have suspected oil? Did something get sprayed around the camera?
I agree with Gus.
It does not look like the dust my sensor has ever collected.
Dust spots become more visible with smaller apertures (higher f numbers), do you see that as well?
Are your lenses clean?

= Bert
06-07-2009, 11:25 AM   #10
Dom
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QuoteOriginally posted by mike3legs Quote
If you haven't got a blower get one. I've got one and an arctic butterfly I use these for cleaning.

I'm going through Chester tomorrow, I've got half an hour between train connections. So if you can be about at 4ish I can run through it with you if you like.
Thanks for the offer. I was hoping the K20D would mean a lot less sensor cleaning.
06-07-2009, 11:29 AM   #11
Dom
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QuoteOriginally posted by bymy141 Quote
I agree with Gus.
It does not look like the dust my sensor has ever collected.
Dust spots become more visible with smaller apertures (higher f numbers), do you see that as well?
Are your lenses clean?

= Bert
That's what I'm doing. The test shooting I'm doing is at f40 defocused on to a white card.

The original images was taken in quite extreme macro at f22.

Edit: Yep, the lens I'm using is nice and clean.
06-07-2009, 11:32 AM   #12
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what lens do you have that goes down to f40?!
06-07-2009, 11:37 AM   #13
Dom
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QuoteOriginally posted by séamuis Quote
what lens do you have that goes down to f40?!
da 18-55 al mk ii
06-07-2009, 11:43 AM   #14
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QuoteOriginally posted by Dom Quote
da 18-55 al mk ii
I did not know that.... does the first one do that? I have barely used mine, so I never noticed.
06-07-2009, 11:50 AM   #15
Dom
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QuoteOriginally posted by séamuis Quote
I did not know that.... does the first one do that? I have barely used mine, so I never noticed.
I've just checked my brothers 'Samsung 18-55 mk I' and yes it does.
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