einav leshetz Posted March 22, 2007 Share Posted March 22, 2007 I'm freaking out.Spots are appearing on my photographs. the same spots are appearing and I've even noticed that I'm getting more and more. I've cleaned my lens several times.My lens in 17-40mm EF and the body is Canon 30D. I have attached a photo where ive circled the spots. please tell me if you have any idea what they are because ive taken it to a shop and they told me im going crazy and seeing things but im clearly not. thanks for your help Link to comment Share on other sites More sharing options...
jamie_crist1 Posted March 22, 2007 Share Posted March 22, 2007 Looks like you have dust on your sensor in your 30D. Regards,-Jamie Link to comment Share on other sites More sharing options...
j_smith6 Posted March 22, 2007 Share Posted March 22, 2007 Dirty sensor? http://www.luminous-landscape.com/essays/sensor-cleaning.shtml Link to comment Share on other sites More sharing options...
funkag Posted March 22, 2007 Share Posted March 22, 2007 It's dust on the filter over your sensor. It happens to everyone. There are lots of products/tutorials out there, or you can send it back to Canon for a cleaning. For now, clone it out with Photoshop. Link to comment Share on other sites More sharing options...
j_smith6 Posted March 22, 2007 Share Posted March 22, 2007 http://www.visibledust.com/ Link to comment Share on other sites More sharing options...
geoff_foale Posted March 22, 2007 Share Posted March 22, 2007 Try the item from Dan Funk 7 posts below this one. Link to comment Share on other sites More sharing options...
dcheung Posted March 22, 2007 Share Posted March 22, 2007 You should never go back to that shop again. They obviously are either under educated, or don't give a damn. There are obvious spots of dust on your sensor. Don't sweat it though. The dust thing happens to all of us. Yours seems better than mine. Link to comment Share on other sites More sharing options...
einav leshetz Posted March 22, 2007 Author Share Posted March 22, 2007 i dont get why though, because I never change my lens. I am in a very dusty country at the moment.. but how does it get in there? ps thanks for replies Link to comment Share on other sites More sharing options...
chris_laudermilk Posted March 22, 2007 Share Posted March 22, 2007 It's sensor dust, no big deal--it's a part of life with DSLRs. Google "Cooper Hill sensor cleaning" Link to comment Share on other sites More sharing options...
steven_moseley1 Posted March 22, 2007 Share Posted March 22, 2007 ...you just discovered one of the 'joys' of digital SLR's that Nikon, Canon and all the rest tend not to advertise too much... Link to comment Share on other sites More sharing options...
einav leshetz Posted March 22, 2007 Author Share Posted March 22, 2007 i freaked out because i thought it was fungus. does the 'sensor cleaning' option they talk about not have anything to do with the 30D and a dust free life? for example, the 400D, is advertised with a sensor cleaner- i thought i had one too Link to comment Share on other sites More sharing options...
evan_goulet Posted March 22, 2007 Share Posted March 22, 2007 As for integrated dust removal systems... Give <a href="http://pixinfo.com/en/articles/ccd-dust-removal/">this article</a> a read. Link to comment Share on other sites More sharing options...
Michael R Freeman Posted March 22, 2007 Share Posted March 22, 2007 <i>"I dont get why though, because I never change my lens. I am in a very dusty country at the moment.. but how does it get in there? </i><P> Every time you zoom your lens, it "sucks and blows" air. Some of that air will go out of the back of the lens and get into the mirror box area (where your sensor is located). That air contains dust. Some of that dust will eventually find it's way to your sensor.<P> It's no big deal. No need to be "freaking out". It's easily remedied. :-) Link to comment Share on other sites More sharing options...
einav leshetz Posted March 22, 2007 Author Share Posted March 22, 2007 ok ill sleep much better tonight :) Link to comment Share on other sites More sharing options...
ronaldo_r Posted March 22, 2007 Share Posted March 22, 2007 Shoot at f8 instead of f11 or f16 -- there will be much less visible dust Link to comment Share on other sites More sharing options...
saurabh1 Posted March 23, 2007 Share Posted March 23, 2007 I tried sensor cleaning kit from Green Clean and vacuumed up the dust. It worked very well. I am still afraid to use swabs ;) Link to comment Share on other sites More sharing options...
johnson_d. Posted March 23, 2007 Share Posted March 23, 2007 Canon recommends a front filter on the 17-40 to "seal" it. This lens has internal zoom and focus so it's not much of a dust pump to begin with but if you are in really dusty environments it's probably worth having. Link to comment Share on other sites More sharing options...
einav leshetz Posted March 23, 2007 Author Share Posted March 23, 2007 yeh i already have a uv and a polarizer filter- and one is always on the lens... Link to comment Share on other sites More sharing options...
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