What's this on sensor?

Started Sep 21, 2004 | Discussions thread
Melanie Kipp
Forum ProPosts: 11,079
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Re: Oily goo removal ...
In reply to Ken Phillips, Sep 21, 2004

I am kindof freaky about self-cleaning the sensor. ANother reason a decent back up is really necessary...

Ken Phillips wrote:
On all of my Canon DSLRs it appears as if the first few times I
cleaned them there was a lot of smearing. Perhaps this was, as has
been suggested, oil from the mirror mechanism. Vaporized and
deposited ... a possibility.
I used 100% isopropyl (the brand name cleaning stuff, Eclipse, is
methanol) and cleaned a few times.
After the smears were gone, a quick dry swipe with a sterile swab
(the things you seem them use on CSI!) and the blower bulb have
worked 100% of the time since.
BTW, I typically shoot at f/16 in the studio, against white
backdrops ... I get to see dust as soon as it arrives!
KP

Melanie Kipp wrote:

MK II file. Noted this a day or so ago, located in the upper left
area of my files. This shot at f13.

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