DetlevCM wrote in post #11664604
A suggestion I got from a photography shop that does cleaning with regards to stuck dust was to use those "Q tips" (-> this stuff http://de.wikipedia.org/wiki/Wattest%C3%A4bchen ) or how you call them that you can get.
(Plastic stick with some cotton at the end) - make sure it's pure cotton any nothing "strange" on it, put some cleaning fluid (in my case Isopropanol) onto it, place on the dust and gently turn.
-> I did that very successfully on the old 400D which has a lot of stuck dust that didn't want to come off with a regular wet clean.
After applying this "spot cleaning" do a regular clean to get rid of any excess cleaning fluid.
That might help here if you have something that's stuck.
A suggestion I got from a photography shop that does cleaning with regards to stuck dust was to use those "Q tips" (-> this stuff http://de.wikipedia.org/wiki/Wattest%C3%A4bchen
) or how you call them that you can get.(Plastic stick with some cotton at the end) - make sure it's pure cotton any nothing "strange" on it, put some cleaning fluid (in my case Isopropanol) onto it, place on the dust and gently turn.
-> I did that very successfully on the old 400D which has a lot of stuck dust that didn't want to come off with a regular wet clean.
After applying this "spot cleaning" do a regular clean to get rid of any excess cleaning fluid.
That might help here if you have something that's stuck.
thank you a lot!
was it dust ?
to me it's a small piece of microfibre saturated with visible dust smear away
Nicholas R. wrote in post #11664673
mantra,
I'm not quite understanding your predicament. If it is a piece of cloth fibre from the swab, it should not be stuck onto the sensor's surface unless you have a great deal of lubricant on it as well. You should be able to move it as Skip has suggested with a cotton swab, micro-fibre cloth or brush. If you can clearly see it, then you should be able to gently nudge it and even pick it right up.
The only other possibility is that it may be stuck under or to the framework/rim that surrounds the filter and if that is the case, then you will need to pry it out with tweezers of some kind. But this will require 100% precision to avoid marring the sensor. I would suggest using a brush to pry one end upwards and off of the sensor, then grab it with tweezers. If you are not comfortable or confident doing this, then by all means send it in to Canon to handle. But looking at your test shot again, the line on the right side of the sensor does not go far enough to be caught by the rim, so try the other suggestions first to nudge it loose.
Nicholas
www.copperhillimages.com
mantra,
I'm not quite understanding your predicament. If it is a piece of cloth fibre from the swab, it should not be stuck onto the sensor's surface unless you have a great deal of lubricant on it as well. You should be able to move it as Skip has suggested with a cotton swab, micro-fibre cloth or brush. If you can clearly see it, then you should be able to gently nudge it and even pick it right up.
The only other possibility is that it may be stuck under or to the framework/rim that surrounds the filter and if that is the case, then you will need to pry it out with tweezers of some kind. But this will require 100% precision to avoid marring the sensor. I would suggest using a brush to pry one end upwards and off of the sensor, then grab it with tweezers. If you are not comfortable or confident doing this, then by all means send it in to Canon to handle. But looking at your test shot again, the line on the right side of the sensor does not go far enough to be caught by the rim, so try the other suggestions first to nudge it loose.
Nicholas
www.copperhillimages.com
thanks you for you help
yes , i 'm sure it's a piece of microfibre satured by smear away (visible dust)
and now it did stuck, sticked on the low pass
the weird thing is that after the cleaning , camera closed and mounted the lens i touched a used swab and i grab with my finger a piece of microfibre,don't know (i guess it's the smear away) but the white piece of microfibre become just like glue between my fingers
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