your urgent kind help required please smudge on photo?

topcat07

topcat07

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Hi all,

currently testing a camera before i buy it this keeps showing up on screen a smudge like blob? what is it is it a fault with the camera i can not see anything on the lens?

asU3B.jpg
 
Yeah looks like dust on the sensor, nothing major and relatively easy to clean. Could be a good bargaining tool though ;) Maybe see how much it would cost for a professional sensor clean (though it is pretty easy to do yourself) and see if you can get that price off the asking price....but yeah nothing major to worry about.
 
thank you both very much for you quick replies , i shall pop the lens of and have a very quick look
 
You won't see the sensor as the mirror is in the way and I doubt if you would see the dust anyway.

Take a pic of the sky or a plain white wall at f22 and that will show the dust bunnies up.

Is this the D40 you were looking at?


Heather
 
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Tigger.ufo said:
You won't see the sensor as the mirror is in the way and I doubt if you would see the dust anyway.

Take a pic of the sky or a plain white wall at f22 and that will show the dust bunnies up.

Is this the D40 you were looking at?


Heather
Click to expand...

Hi Heather

that is the one

just took of the lens but all looked mega clean

guess i was looking at the mirror :(
 
Flip the mirror up to view the sensor. All Nikons, I believe, have a mirror up option. If it's just a few specs of dust, it'll be an easy clean.

You should see the dots all over the skies of my D800E shots already! I have a set clean pack on the way.
 
Adam, you might like to read up BEFORE touching anything!



Heather
 
Try a test at highest F stop looking at bright sky or something, this should show the speck almost in focus,
It looks like a short fibre rather than the classic round grey spot which I think is often pollen at this time of year.
If so it might blow off easily but there's a remote chance it's some seriously sticky oil spot or something which when buying you need to take into account.
 
4wd said:
Try a test at highest F stop looking at bright sky or something, this should show the speck almost in focus,
It looks like a short fibre rather than the classic round grey spot which I think is often pollen at this time of year.
If so it might blow off easily but there's a remote chance it's some seriously sticky oil spot or something which when buying you need to take into account.
Click to expand...

hope its not oil don't fancy the £30 + that would cost to get it professionally cleaned from my brief two minute research i assume thats what it means

ill try flip with the menu option now to have a quick look but not touch
 
just tried the mirror lock up "this option is not available with the current settings" better have a google i guess

edit--ah battery needs to be 75% thats why
 
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Its just dust, don't worry about it. Its a fact if life with DSLRs. Buy a rocket blower and some swabs and give it a clean. As long as the battery is fully charged you won't break anything.
 
eun61k.jpg
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if you zoom in one this one i took there are little black dots everywhere near the cloud are they birds or is this dust again ? as they look different to the big mark and i carnt remember if there were any birds lol
 
Yes that's fairly typical dust, with the mirror up you could probably see that main fibre-like speck in good light.
 
You don't need a pro-clean, it's a rip-off. You only need to get a cleaning kit, a few swabs and a bottle of cleaning fluid. You dab 1-2 drops of the fluid on a swab-stick and lightly press and glide it over the sensor once. Then go back over with the dry-side. Check the sensor again, it may need one more go, with a new swabs, same thing again. That's it. You can get kits for £10. And you'll have enough left over for a couple more cleans.

Unless you are pounding the sensor like you were using a hammer you cannot do any harm. It is a filter over the actual sensor you are actually cleaning. I don't know why some recommend against cleaning yourself. Everyone does it.
 
Finally got to look under mirror can see a very very very tiny curly fibre will buy a blower hopefully will sort it thank you all :-)
 
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