SandKMultimedia
newbie
Reged: 21/08/2008
Posts: 5
Loc: Bucks County, Pa.
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My optics were cleaned. I was editing the "clean" pic's and WTF, there's the spot. I took it back thinking they were going to send it to Nikon. The guy who cleaned it took it outside, took a pic of the sky and zoomed in on it and there it was.
He cleaned it again, Picture of the sky, it is gone. He then starts telling me about how dust is EVERYWHERE and there is NO WAY to get a camera clean. He talked about the heat of the optics, if the dust isn't removed it can burn in, and on. I can BS the big boys about computers but not about camera's. I never take the lens off but he says that doesn't matter.
Am I being BS'ed?
Thanks
Bob
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Fen
BAD WOLF
Reged: 12/03/2002
Posts: 21375
Loc: London'ish
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Yes, a very heavy and thick layer of BS
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Fen .......... My Galleries - My Blog - My Flickr
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hech54
addict
Reged: 20/05/2006
Posts: 456
Loc: Germany and U.S.A.
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You need to be more specific when you say "optics" too. Dust on a SENSOR is fairly common....and they do tend to travel...one day there....next day gone.
Dust INSIDE a lens....especially a zoom lens is also
not uncommon. Mine don't have any (yet) that I can see but
it wouldn't terribly upset me to see some.
And you also need to consider that the camera wasn't built with the lens on it. Dust specs inside the camera where the sensor is DO travel. Your best bet is to start taking the lens off, do a mirror lock up, turn the camera upside down
and blast inside with a rocket blower yourself.
When my D70 was brand new I had some serious dust specs in there....considered Sensor Swabs but did some reading and reconsidered. Instead invested in blower and all is well.
The older my camera gets...the less I am having dust problems....strange but true...at least for me...and
I switch lenses all of the time.
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Does the picture turn out differently than what you see in the viewfinder?
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SandKMultimedia
newbie
Reged: 21/08/2008
Posts: 5
Loc: Bucks County, Pa.
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He did the mirror lock up and swabbed the sensor. We looked at it after he cleaned and it was clean. I was in the back taking pictures of deer and took one of the sky, just for kicks. I uploaded and sure enough, it's coming back. WOW....
Thanks
Bob
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hech54
addict
Reged: 20/05/2006
Posts: 456
Loc: Germany and U.S.A.
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Quote:
He did the mirror lock up and swabbed the sensor. We looked at it after he cleaned and it was clean. I was in the back taking pictures of deer and took one of the sky, just for kicks. I uploaded and sure enough, it's coming back. WOW....
Thanks
Bob
If I were you I would just sit tight and be patient for a while....and go out and take some pictures. I haven't had sensor speck problems for...well....I can't remember my last one. I had some SERIOUS sensor specks too....I still have the pics.
Next time you are out photographing anything but a blue sky...pick up a rocket blower... 
Just don't panic.
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Does the picture turn out differently than what you see in the viewfinder?
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El Sid
Going potty
Reged: 14/04/2003
Posts: 9546
Loc: Sussex-by-the-Sea
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Quote:
He then starts telling me about how dust is EVERYWHERE and there is NO WAY to get a camera clean.
Unfortunately 'dust' is everywhere and it's very pervasive. In our houses we ourselves are a very major source of dust while outside there's all sorts of sources from pollen through soot and smoke to dust from soil etc. It's perfectly possible to get the camera clean......... but short of a fully filtered clean room no practical way of keeping it clean.
There's also anecdotal evidence to suggest that with new cameras the camera itself may be the source of some of the muck.
Quote:
He talked about the heat of the optics, if the dust isn't removed it can burn in, and on.
The sensor can get warm but burn things in or on?................ Do I smell bovine by-products or what....
Some particles such as pollen and soot can be quite sticky and a warm sensor may dry them out and help them stick a bit more but that's all. Besides that the crud isn't even on the sensor but on the filter pack in front of it so even more removed from what heat there is.
Quote:
I never take the lens off but he says that doesn't matter.
True to a fair extent. Like I say there is evidence to suggest that some dust is generated within the camera - also zoom lenses are not airtight. Zooming and focusing moves various lens elements and can change the overall size and hence volume of air within the lens. This naturally draws air into the lens and with it a certain potential for dust ingression...
I think I'd say you've been fed a certain amount of BS by someone with a poor understanding of the facts...
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Nigel
Completely BSRIPN 
ElSid Gallery
A camera in the hand is more fun than one in the cupboard........
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SandKMultimedia
newbie
Reged: 21/08/2008
Posts: 5
Loc: Bucks County, Pa.
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I would think a rocket blower is the same as compressed air?
Thanks for all the great replies!
Bob
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Fen
BAD WOLF
Reged: 12/03/2002
Posts: 21375
Loc: London'ish
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Nope. A rocket blower is nothing like compressed air. Compressed air is too powerful and can contain contaminants that may damage your sensor.
A rocket blower just blows air when you squeeze it. It's a lot more delicate.
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Fen .......... My Galleries - My Blog - My Flickr
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lightspeed
member
Reged: 17/09/2006
Posts: 117
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I just cleaned off some stubborn specs with "visible dust" sensor swabs and fluid.
Very easy, very effective. Having done it once, I wouldn't hesitate to do it again when needed!
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