5DII sensor stain?

Started Apr 29, 2012 | Discussions thread
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shawn in ak
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5DII sensor stain?
Apr 29, 2012

Bought a refurb 5DII in March. I've continually noticed three little dots with halos showing up at f/22 since receiving it. I don't shoot with that f-stop often, but when I do, it's a pain to have to remove them every time. Also, they seem pretty fixed in place and don't appear as normal dust particles. (The usual dust I see doesn't have odd halos).

I have tried running the camera's cleaning cycle and hitting the sensor with a rocket blower. Kind of scared to delve further.

Legit dust or defect?

Probably not a big deal but I'd like to know if its a legit defect as the warranty runs out soon. Otherwise, I'm loving the 5DII. Killer upgrade from my old 20D.

 shawn in ak's gear list:shawn in ak's gear list
Pentax K-5 Canon EOS 6D Canon EF 85mm f/1.2L II USM Sigma 17-50mm F2.8 EX DC OS HSM Canon EF 24-105mm f/4L IS USM +1 more
Canon EOS 20D Canon EOS 5D Mark II
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