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DPChallenge Forums >> Hardware and Software >> Help...Sensor dust...Canon Rebel XT
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10/18/2009 05:20:18 PM · #1
I am needing some advice or just information.

I recently noticed dust on sensor tried blowing it off with one of those blower brushes without the brush on...didn't work.

So then I brought it into a camera shop on Thursday to get cleaned since it has never been cleaned professional (around 4 years since new). They did the cleaning in about 1.5 hours. They clean cameras for $50.00. He said there was hardly any dust on it so he just charged me $20.00. I bought one of the deluxe blowers he mentioned in place of the brush blower if dust does get on sensor. They use a cleaning system with magnifying glasses (he actually used 2 of them i recall him mentioning), a wand with cleaning pad and then a small vacuum I think. Then he told me to help prevent dust from getting on sensor these several things:
1. have camera turned off when changing lens
2. wipe dust off camera/lens mount area if possible before taking lens off
3. use of a deluxe blower (he had a Dot Line Corp medium blower $7.99)

Then I always have camera lens facing down to prevent dust from setting.
Camera is always in a backpack case.

So I get camera back Thursday night.
Friday I go take photos. Look good (
Saturday take the same photos as I did Tuesday when dust was noticed. Got home and uploaded photos and on the same subject dust all over the place (didn't notice dust on other photos but those were shot using aperatures of f14 or less) the photos with the most noticeable dust were shot at f20ish.

Then I used the deluxe blower to clean the new dust and take photos of blue sky to check for dust..and still there I do this 4-6 times. Dust is still there. so the deluxe blower didn't work.

I only changed the lens once or twice.
I am really getting ticked and getting photos that are not acceptable.

What are my options...??
I am most likely going to camera shop to see what to do. I did everything he said.

Can dust and is dust that HUGE of a problem....if so that is amazing people accept this.
I can see this being so...wedding photographers take lens on and off all day in a vary of conditions...do they sit in front of computer and fix tons of once in a life time shots of a wedding before images are even good to work on?

Sorry about the length of post but I am thinking this is taking the fun out of photography.

Thank you to everyone that read and responds

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added a photo. shot with a few day old Tamron 90 macro set at f32
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Message edited by author 2009-10-18 19:56:41.
10/18/2009 05:36:19 PM · #2
That's an unusual amount of problems early on with a cleaned sensor. Something's not right here.

R.
10/18/2009 06:07:28 PM · #3
I'm afraid I can't offer much of a consolation or a sinecure, but how about a little empathy.

My 1DsII and now also the 30D suffer from the same malaise. I have swabbed each sensor carefully and with increasing pressure, too, using Eclipse fluid, some odd 20 times or so, at a time. I've used an expensive Arctic Butterfly® (Visible Dust) wand. And I can't the damn specks off. I can get rid of the very small stuff, but not of the UFOs. I keep doing it regularly, like a catholic going to confession, albeit sans any prospect for absolution.

The only recourse we have, to the best of my knowledge, is the clone tool and the healing brush.

Message edited by author 2009-10-18 18:08:28.
10/18/2009 06:10:10 PM · #4
I used a blower once...once. I've never actually cleaned my sensor. I do use the Copper Hill Images sensor sweep though. I like it. I used to get worked up about the idea of having a super clean sensor, then I stopped. If a shot has some dust that shows up, I clone it out. I rarely use small apertures, so it's not really a problem.

Sometimes I think we can get really hung up on things like having a spotless sensor, and it does take the "fun" out of it. It needn't be that way.

Anyway, check out Copper Hill's cleaning products.I love my sensor brush.
10/18/2009 06:38:48 PM · #5
Originally posted by zeuszen:

I'm afraid I can't offer much of a consolation or a sinecure, but how about a little empathy.

My 1DsII and now also the 30D suffer from the same malaise. I have swabbed each sensor carefully and with increasing pressure, too, using Eclipse fluid, some odd 20 times or so, at a time. I've used an expensive Arctic Butterfly® (Visible Dust) wand. And I can't the damn specks off. I can get rid of the very small stuff, but not of the UFOs. I keep doing it regularly, like a catholic going to confession, albeit sans any prospect for absolution.

The only recourse we have, to the best of my knowledge, is the clone tool and the healing brush.

I had the same problem with my 10D a few years ago. There were several ring/doughnut shaped spots on the sensor that I couldn't remove with the Copperhill method, no matter how many times I tried or how hard I wiped. I sent it to Canon and they replaced the sensor and high-pass filter. Apparently there were defects (tiny bubbles) in the glass filter. It sounds like you may have a similar problem in your 1DsII.

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