Hello everyone, I'm having a hard time with sensor specks on my D7000.
I've had it for almost a year now. It used to gain some dust after 3 or 4 months, but then it started to get really messy: something like this
Well, I took it to a service center, they wet cleaned it, and it was absolutely clean. And then, after maybe 10 shots, 1 speck appeared, another 10 shots, 3 more and so on. Well, in a week it was back to this, maybe worse, without even changing lenses during that time (I used Tamron 17-50 f/2.8 VC). Ever since then, I can't take more than one or two shots without it getting even worse.
So, my question is, what could this be, is it dust or oil? Shooting at f/2.8 all the time is not a solution and spot healing/cloning it out would be extremely time consuming.
Should I send it for repair? I don't really want to clean it after every shot (or am I better selling it straight away and buying a new camera)? It used to work so well, but now, it's unusable because of this.
Thanks for you help in advance.