Wet cleaning sensor? Experience, good or bad idea?

Started Oct 26, 2012 | Questions thread
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cwinte
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Wet cleaning sensor? Experience, good or bad idea?
Oct 26, 2012

I have noticed (on N7) about 8 spots that are on sensor and do not vibrate or blow off.
One of the spots is nearly 1mm across and reflects light very differently than the sensor - it is a dried patch of something I fear.

I am trying to recall if I changed lenses anywhere downwind of a condenser unit in France that was sprayed with water mist containing Lavender Oil - that might explain it but I can only remember being paranoid about the UV filter getting messy.

It shows worst at high-f, small aperture and is annoyingly visible, it can't be seen wide open.

Anyway:

Is it mad to even contemplate a DIY clean?

Are the kits any good?

Might I damage the surface (this is only IR filter glass, right?)

Is there a professional service available London area? (I do not want to send the camera away)

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NEX 7, 5N, OSS SEL18200, kit1855, 16mm & 12mmUWA, Sigma30 plus various manual glass

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Sony Alpha NEX-7 Sony Alpha NEX-6 Sony E 18-55mm F3.5-5.6 OSS Sony E 16mm F2.8 Pancake Sony E 18-200mm F3.5-6.3 +3 more
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