Smudge/dust on sensor

KillerbobKillerbob Posts: 732Member
edited June 2013 in Nikon DSLR cameras
On my D800 I have noticed that in >f/14 pictures there is small smudge/dust visible. However, when I lift the mirror and open the shutter I can't see anything. Ii must be really small, but it's kind of difficult to do something about when I can't even see it.

Besides using an airblower I guess it's back to Nikon, but I am definitely open for suggestions?
Post edited by Killerbob on
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