I had dust on my Nikon D600 after less than 1000 shots and before I ever even changed the lens. Something is up with Nikon and dust. Either a shutter design or something else. I even had 2 hot pixels and ended up returning. I'll probably end up re-buying but i'm worried about these issues. Even the reviews are pointing them out:
http://learningcameras.com/reviews/4-dslrs/75-nikon-d600-full-review

i tried the '' clean sensor of the menu'' and i had more black spots ! i contacted nikon and they confirmed that the sensor needs to be cleaned, so i took the camera today to the service centre kingston ,london .the service was just great and they have done it while i was waiting .
the whole process done within 4o min.
thank ou msmoto for your reply .

@ sary

Shoot an exposure of a plain white sheet of paper, camera focus at infinity, paper at about two feet. In post processing, increase contrast to full and then post image. This should show the problem more clearly than a 10 second exposure.

here is the link to see the mark

thank you for the reply msmoto , how can i post a pic as attachment ?

Now that we are in the correct thread...just a little note. Unless I am in an extremely dirty venue, I do not clean lenses. Some have never been cleaned in several years except to possibly blow dust off. And the rear element is never touched unless some unfortunate event occurs and a piece of dirt or smudge gets on the glass.

The pro Nikon bodies do seem to have a tendency to accumulate oil spots. After about 10,000 clicks I cleaned my D4 sensor which had over 70 oil spots, by count, and I have not had another in the past 7,000 clicks.

And, Sary, welcome to NRF. Maybe you could post a photo showing the spot..... or what a while and see if more accumulate.

sary said:
hi guys i've just noticed a mark (same size and location) in some of my pictures taken with my d800 , i've tried differents lenses but still same thing .i do clean my lenses before and after use .has someone experienced same issue please ? is something to do with the sensor .it happens on 3/4 out of 20 pictures !
thank you

I had the same problem when new. Cleaned the sensor after about 1800 shots and it's been fine from then on. I have to blow off a dust spot every now and then but the self clean normally does the job.

Nikon should clean it under warranty. I just did it myself.

I cant say I noticed any, though admit I have not looked for them.

What's a good method ? Shoot a white sheet and overexpose so nothing is there, then look for spots ?

nope, where have You changed Your lens - what conditions?

Hi everyone.

I found problem of oil spots or dust issue at my D800 make Oct. 2012, only 1100 cut.

I took the dust or oil spots photos at my camera and adjust more clearly show it. used lightroom.

this is detail 100% crop

I will check in NIKON as center in Korea tomorrow. If i have something more news from AS center, i`ll more report.

However, nobody expriance about this ?

I've slowly been accumulating spots on my D600 sensor, but these haven't been a major issue unless i'm taking shots of a uniform background.

Today though, about 10k actuations in my mirror seems jammed or locked and isn't raising properly/fully when shooting. Using the "lock mirror up" sometimes gets it about halfway and sometimes not at all. Bummer.

Its under warranty and I'll take it in tomorrow, but for a 6 week old camera that hasn't been knocked around it's frustrating -- but serves me right for being an early adopter, i guess.

Posting here as it seems potentially related to the the mirror box issues that are referenced earlier in this thread as a likely cause of dust/oil. Or i could just have a dud, or have accidentally dinged it without noticing.

Proudgeek has it exactly, some Nikon apprentice likes to munch his lunch on the assembly line and is a bit of a messy eater when he gets to the salad dressing......
Robin

On my D4, about 10,000 where as I cleaned about 70 spots off and I have not seen any oil spots since then and I am at nearly 17,000 clicks. It looks like this issue is being resolved... to the benefit of those who have a D600....

proudgeek said:
Funny that the person to whom the dpreviewer spoke said it was "lubricant but not oil." In this case, what's the difference? They're not using salad dressing.

...

I continue to wait. I've got to believe that eventually this will be resolved.

Graphite is one commonly used lubricant that is not oil.

See the main blog. It looks like 3K activations will shake off most of the "stuff" and you are good to go after that.

I have had both the dust spots and a few oil spots on my D600 sensor. You can see the difference under magnification. Those dark black spots are dust (or shavings from an uncleaned internal part) while the browner larger spots are drops of oil or lubricant which must be flinging off the mirror.

Funny that the person to whom the dpreviewer spoke said it was "lubricant but not oil." In this case, what's the difference? They're not using salad dressing.

I'm certainly not an engineer, but you've got to figure that a highly engineered component, like a shutter curtain, would need some kind of oil/lubricant in order to ensure 150,000 or so actuations.

Perhaps some engineer somewhere miscalculated how the lubrication system would work and that a splatter is being created? Perhaps the reservoir in which the lubricant is stored has a leak or disperses too much lubricant per actuation? It seems that, based on that report, that Nikon is "getting it" and is in the process of dealing with the issue. It's actually the most encouraging thing I've read in terms of an interaction between Nikon and a D600 user.

I continue to wait. I've got to believe that eventually this will be resolved.

My current feeling about my D600 is that it is not dust. Initially I was able to get some dust off with a blower that was on the sensor from the factory. Now, after only 300 clicks, I have spots on the sensor that won't come off with blowing. I have a suspicion that they are oil. I've sent my D600 body in to Nikon for repair.

I thought the general consensus was that the dust is generated by a problem with the shutter design or manufacture not being right? Of course that could be internet fact...

Thom Hogan posted an interesting comment on the D600 "dust" issue. He thinks it may not be "dust" at all but some shavings left over from drilling some holes during assembly on a part that was not properly cleaned after the drilling. Many people are doing the drilling and just one or more are not properly cleaning up after the drilling to remove all the shavings or filings. That would account for some bodies having the issue and others not having it like the D800 left focus issue. That would actually be good news because Nikon will fix it on the assembly line (maybe they already have) and if it is an internal source of "dust" than it will eventually be eliminated with repeat cleanings. It would be great if it is not some sort of design flaw in the camera such that dust is being sucked in with use because that would be a constantly recurring problem. I have cleaned my D600 sensor twice now in just under 1,000 exposures. Less "dust" the second cleaning. Maybe that will be the end of it.

Thanks for the reply msmoto, you are a respected member of this forum and have provided helpful advice to many of us, including me.

I have heard the "oil change in a new care" analogy in many forums. I want to make sure that everyone knows that this is not a fair comparison. My sensor had image-wrecking amounts of spots after just 200 clicks and even more after 300 clicks. This isn't routine maintenance that a responsible owner should expect, it is a problem.

I hope this problem can be easily remedied. As a matter of fact I am expecting that it will be. However, it is frustrating to hear that Nikon had similar problems with a significant number of D7000 and D800 bodies. This shouldn't happen to a third line for them. I hope Nikon finds a fix and remedies the situation for those of us having this problem and does not replicate this problem in future camera lines.

On a related note, I have found it incredibly frustrating to see other photography/nikon community members attacking those of us with this camera issue. It is very apparent in this thread = http://forums.dpreview.com/forums/post/50354207 That poor Swiss person, why does he deserve to be attacked? It is really poor form to attack the victim.

As I sit and wait for the sale on the D800 to begin, I am also thinking about the D600 as a potential alternative. From the forum on dpreview above it would appear Nikon is paying for the postage by supplying a barcode for the package prepaid. And, I would think this is going to be the solution world wide at some point.

And, having cleaned the sensor on my D4 after about 10,000 clicks, at a cost of about $40 for the cleaners, I can understand the frustration at least in a small way. But, if we purchase a new automobile, or in my case a motorhome, and have to take it in for warranty service, the cost to deliver it to the repair shop is in almost all cases that of the consumer. And, if one is driving 600 or even a 1000 miles, well the round trip is from $500-1000 for fuel.

So, I do understand how in a case where the issue is so clearly a manufacturing issue seen at the time of purchase, the anger and disappointment can trigger a lot of thoughts, we are still all under the general policy of the retail industry where some will and some won't pay for shipping to obtain warranty repairs.

If the sending out of the prepaid barcode labels comes to reality this I would consider a very positive action on the part of Nikon.

Right, I didn't get the impression that Nikon USA knew, or would say anything about the issue. I still reported it, as should anyone who is experiencing this. For every one of us who does this it will increase the pressure on Nikon.

Now if the person from Switzerland heard right, then there is a cause and likely solution to this. I don't know what Nikon USA will do to my camera, but I hope it is a deeper cleaning. I hope that they will get whatever excess oil is remaining on the mirror/hinge/etc off as well as cleaning the sensor. But they wouldn't say what they were planning on doing.

roombarobot said:
I heard exactly the same thing from Nikon USA support. They also said that I would have to pay for shipping to have it cleaned. That annoys me, given that it is their fault for this.

I just read this on the dpreview boards:
http://forums.dpreview.com/forums/post/50354207

I think they missed the point: Cleaning it is at best a temporary fix - they need to fix the cause of the dust and pay the costs for everything to do with it.

I heard exactly the same thing from Nikon USA support. They also said that I would have to pay for shipping to have it cleaned. That annoys me, given that it is their fault for this.

I just read this on the dpreview boards:
http://forums.dpreview.com/forums/post/50354207

I waited about 6 weeks since I last called Nikon when I was told they were aware of the dust/oil issue in the D600 and waiting to hear from Nikon Tokyo. So today, I called back to ask for an update.

The gentleman I spoke with was very polite and helpful and gave me some good information once again (I believe it was the same person I spoke with the first time).

These are the points he made which may be useful for other people experiencing the same issue or think of buying a new D600:

Nikon Tokyo have a solution in the works which will involve fitting new parts into the camera to solve the issue
The fix will be coming 'soon' but I was told I should still send my camera in to be cleaned in the meantime for a quick turnaround of just several days
They are not oil spots we are seeing but lubricant/debris coming off the mirror box
The interim cleaning will involve not just the sensor but also the source of the lubricant
Nikon are paying for the postage by sending me out a barcode to put on the box so I can send it in for the cleaning
A high proportion of d600's are experiencing this problem

I think the major point here is that Nikon Tokyo have a solution involving the removal and fitting of new parts but this solution is not yet implemented and that the repair centre is waiting each day for an update on this (what I was told).

Thankfully, this means something is being done even if Nikon are not being vocal about it (big mistake in customer relations which I expressed my concern about).