[Dust under lowpass filter] Everyone have this problem?

[Joytek]

My new 1D MKII has dust stuck BETWEEN the low-pass filter and the sensor.

My old 10D had the same problem. Is this normal? I thought that if I purchased a "professional" camera, it would garantee that it was assembled in a "clean room".....but I guess I was wrong.

This really bugs me because there is nothing that I can do about it. The Canon service center told me that they do not have the required tools to service my camera (Not in Korea) and I would have to send the camera to Japan(back to the factory), and they MIGHT be able to remedy this issue (of course it would not be covered by my Korean warranty, and would take more than a month....possibly around two).

since I shoot a lot of landscapes, and use f11 - f16 quite frequently, the dust shows a lot, and often.

I am wondering if anyone else (who wipes their sensor with pecpads and eclipse) has noticed some stubborn (uncleanable, persistant) dust spots on their test shots (always in the same spot , and of the same intensity)

I am wondering if maybe the cameras and lenses send to Korea for retail are sort of "second" grade? I heard that the products sold in Japan are of higher "standard" then the export ones. Can anyone confirm or disconfirm this rumor?

Thank you for your input.

w.

[Scottes]

I also have a couple very stubborn spots on both my 20D and 10D. I thought I was going crazy because I couldn't clean them, but this may explain them.

I don't do so much at such small apertures, so the rare shot can be cloned out for me. But I'm glad that I now have an explanation for those remaining spots.

[Cadwell]

I have 3 small persistent spots on my 10D. Likes Scottes, they are rarely an issue for me.

[hipshot]

i went to swipe my sensor for the first time last night and saw what looked like a scratch or something stuck that wouldnt budge, doesnt seem to show up in photos, but its unmistakable on the sensor

[ssim]

I haven't had any issues like this with my MKII. I will consider myself lucky.

I did have a persistent spot with my 10D and called Canon. They told me to bring it in and I would have the camera back with 4 working days. I was pleasantly surprised when I showed up at the Canon Service Center and they asked me to wait and I had the camera back in about 20 mintues. The dust spot was gone. Again I consider myself lucky.

[FlipsidE]

These kind of stories scare me badly when it comes to DSLR's. They ALWAYS seem to have one problem or another.

FlipsidE

[robertwgross]

I would wager that all of these 1-type camera bodies are manufactured on the same assembly line regardless of where they are sold, South Korea or elsewhere.

---Bob Gross---

[malla1962]

My new 1D MKII has dust stuck BETWEEN the low-pass filter and the sensor.

My old 10D had the same problem. Is this normal? I thought that if I purchased a "professional" camera, it would garantee that it was assembled in a "clean room".....but I guess I was wrong.

This really bugs me because there is nothing that I can do about it. The Canon service center told me that they do not have the required tools to service my camera (Not in Korea) and I would have to send the camera to Japan(back to the factory), and they MIGHT be able to remedy this issue (of course it would not be covered by my Korean warranty, and would take more than a month....possibly around two).

since I shoot a lot of landscapes, and use f11 - f16 quite frequently, the dust shows a lot, and often.

I am wondering if anyone else (who wipes their sensor with pecpads and eclipse) has noticed some stubborn (uncleanable, persistant) dust spots on their test shots (always in the same spot , and of the same intensity)

I am wondering if maybe the cameras and lenses send to Korea for retail are sort of "second" grade? I heard that the products sold in Japan are of higher "standard" then the export ones. Can anyone confirm or disconfirm this rumor?

Thank you for your input.

w..not sure about where they are made but i got my d rebel from usa,made in taiwan,my mates 300d was made in japan.my new 20d uk model allso made in japan,just wonderd where the usa 20d is made.

[daveh]

These kind of stories scare me badly when it comes to DSLR's. They ALWAYS seem to have one problem or another.

So does everything else. If you want to think you product is perfect, then don't hang around user forums ;)

[FlipsidE]

I completely understand. No product is perfect. But a $1000 TV with a spec of dust in it doesn't cause the large problems that can be caused with a DSLR with the same price.

FlipsidE

[HJMinard]

just wonderd where the usa 20d is made.

Japan

[daveh]

I completely understand. No product is perfect. But a $1000 TV with a spec of dust in it doesn't cause the large problems that can be caused with a DSLR with the same price.


Right, with a TV it's usually a tiny solder fault in a high voltage circuit that cracks. Fortunately digicams don't have those.

[wolf]

I had the same problem with a large speck of dust between the sensor and the low pass filter.

I took a piece of aquarium air hose and attached it to a vacuum cleaner hose with lots of duct tape thus making a mini vacuum hose. I then put the camera in sensor clean mode and vacuumed the edges of the sensor, problem solved.

I also use this mini vacuum everytime I do a sensor cleaning with methonal and pec pads.

[Curos]

\I took a piece of aquarium air hose and attached it to a vacuum cleaner hose with lots of duct tape thus making a mini vacuum hose. I then put the camera in sensor clean mode and vacuumed the edges of the sensor, problem solved.

Sounds scary to me... :shock: i cant imagine accidentally sucking up something that shouldnt budge...

[steven]

\I took a piece of aquarium air hose and attached it to a vacuum cleaner hose with lots of duct tape thus making a mini vacuum hose. I then put the camera in sensor clean mode and vacuumed the edges of the sensor, problem solved.

Sounds scary to me... :shock: i cant imagine accidentally sucking up something that shouldnt budge...

And how did you create the vacume behind the low pass filter :?:
It would apear to me that the low pass right in front of the sensor would stop any air currents from getting between :?

[drisley]

I took a piece of aquarium air hose and attached it to a vacuum cleaner hose with lots of duct tape thus making a mini vacuum hose. I then put the camera in sensor clean mode and vacuumed the edges of the sensor, problem solved.
That sounds interesting. I guess the sides aren't completely sealed so the dust was sucked out throught the space at the side.
I dont really see any problem in using a vacuum. I think it should work great, as long as there isn't too much suction. I would also wrap the end with a pec pad to avoid scratching

[wolf]

\I took a piece of aquarium air hose and attached it to a vacuum cleaner hose with lots of duct tape thus making a mini vacuum hose. I then put the camera in sensor clean mode and vacuumed the edges of the sensor, problem solved.

Sounds scary to me... :shock: i cant imagine accidentally sucking up something that shouldnt budge...

And how did you create the vacume behind the low pass filter :?:
It would apear to me that the low pass right in front of the sensor would stop any air currents from getting between :?

I came up with this idea after Canon informed me that the low pass filter and the sensor are not hermetically sealed so air can flow between them.
It worked for me.

[ron chappel]

i went to swipe my sensor for the first time last night and saw what looked like a scratch or something stuck that wouldnt budge, doesnt seem to show up in photos, but its unmistakable on the sensor

I too have fine scratches on the 'sensor' (really the outer filter of course)
I can make them show up by severly upping the contrast at tiny apertures but in normal images they are totally invisible.They are the only issue i've had so far with my camera so i'm pretty happy.
The only thing that troubles me is if a very sharp eyed buyer notices them when the time comes to sell :?

[Cadwell]

I too have fine scratches on the 'sensor' (really the outer filter of course)
I can make them show up by severly upping the contrast at tiny apertures but in normal images they are totally invisible.They are the only issue i've had so far with my camera so i'm pretty happy.
The only thing that troubles me is if a very sharp eyed buyer notices them when the time comes to sell :?

:lol: and the best way to ensure they don't notice is to tell the world by posting it on the internet :lol: :wink:

[HKFEVER]

I have this problem too :evil: (a large speck of dust on the sensor ), so I start the sensor cleaning mode and use air blower and small vaccum to clean the dust out.

Starting at that time, I always blow the len mounting area beofre changing any lens and also blow the mirror before mount the lens. :D