gravilence Posted February 22, 2006 Share Posted February 22, 2006 Hello all. I'm here to ask you for your sincere opinion and advice,whether my Canon EOS Rebel XT is defective. I just purchased it new, and after my first session with the kit lens18-55, nearly 30% of my pictures had a dark spot on the (portrait)upper right corner. I'm quite alarmed by this recurring characteristic. Here are some of the pictures that turned out that way: http://img.photobucket.com/albums/v295/l24nd0m/IMG_0008.jpg http://img.photobucket.com/albums/v295/l24nd0m/IMG_0014.jpg http://img.photobucket.com/albums/v295/l24nd0m/IMG_0020.jpg http://img.photobucket.com/albums/v295/l24nd0m/IMG_0021.jpg http://img.photobucket.com/albums/v295/l24nd0m/IMG_0026.jpg Before sending a Repair Request i wanted to confirm with people whohave experience in DSLR's. Thank you all in advance!-Mike Link to comment Share on other sites More sharing options...
zach_shipko Posted February 22, 2006 Share Posted February 22, 2006 It looks like there's a speck of dust on your sensor. Link to comment Share on other sites More sharing options...
jmf Posted February 22, 2006 Share Posted February 22, 2006 Just sensor dust. You may be able to blow it off but don't use canned air. You could send it off to canon to be cleaned or go to http://www.cleaningdigitalcameras.com/ for instructions. Dust tends to show up more at smaller apertures. Link to comment Share on other sites More sharing options...
davidmccracken Posted February 22, 2006 Share Posted February 22, 2006 As has been pointed out to you, it IS dust on the sensor. Sending it to Canon to be cleaned will not guarantee you won't get dust on it again within a very short space of time. Cleaning the sensor yourself is an option. The Canon recommended instructions are in the manual you got with the camera.<br><br>You could look at <b><a href=http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=006tJA>this thread</b></a> to see the answers I got to posting a similar question.<br><br>As the previous poster said.... <b>DON'T USE CANNED AIR!</B> Link to comment Share on other sites More sharing options...
gravilence Posted February 22, 2006 Author Share Posted February 22, 2006 Thanks for all your help =) I will get a cleaning kit and try it out myself. Link to comment Share on other sites More sharing options...
suman Posted February 22, 2006 Share Posted February 22, 2006 If you purchased it new, don't bother cleaning it yourself. Get a new one from the dealer. I don't know why a speak of dust get to the sensor of a new camera in the first place, unless you did something evil to it. Link to comment Share on other sites More sharing options...
jmf Posted February 22, 2006 Share Posted February 22, 2006 Well, you could return it, but sooner or later you WILL have to deal with dust on the sensor. I swap lenses between zoom and primes all the time. I have 2 dogs, a cat, and I live in a very dry climate. I bought a cleaning kit the same time as I bought the camera because dust will be a problem for me. Here's my suggested "acid test". Try the "cleaning mode" first with a rocket blower and a fully topped off battery. Point the body face down and keep the nozzle away from the sensor. If that works, you're done, zero risk, happy camper. If the stuff is "glued" down where you need to use contact cleaning of the sensor assembly, think about trading it back to the dealer. Having said that, do start to read up on sensor cleaning. It borders on religion to some people, but it's mostly just being carefull and thinking about what you're doing. Link to comment Share on other sites More sharing options...
keith turrill Posted February 23, 2006 Share Posted February 23, 2006 I use a pair of Canon 10D's and returned another as defective. To test for dust on the sensor, use a medium focal length set to f32. Then go outside an snap a few shots of blue sky or gray overcast. The exposure for even tone will by possibly 1/10 second. Essentially, you are using the very high f-stop to photograph the top of the sensor filter inside the camera. The last time that I bought a body, I had the camera shop owner watch me put a lens on the body, took it outside and snapped a sky shot, then brought it back inside. We verified that Canon is shipping a lot of sensor dust from the factory. Sensor often is not a problem at lower f-stops, so there aren't many complaints from people taking holiday and vacation snaps. It becomes a nasty problem in macro where high f-stops are used. Link to comment Share on other sites More sharing options...
iondais Posted March 23, 2006 Share Posted March 23, 2006 Just purchased yesterday a new Canon 350D and I experience IDENTICAL dark spots on the pictures; on a closer look you will find another one in the symmetrical position (top left) Could this be a model defect or what? Link to comment Share on other sites More sharing options...
phule Posted March 23, 2006 Share Posted March 23, 2006 Fatman, it's good to see you actually read all the helpful responses in this thread. Link to comment Share on other sites More sharing options...
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