Canon 20D Problems

[CRJ700Captain]

I got the camera on December 27, 2004. Ever since the first shot I have gotten spots in my photos. It looks like contamination but I have througoughly cleaned the lens, the sensor, and everything else I can think of. The spots remain.

I don't think this is a case of malfunctioning pixels. Any ideas?

I have edited this picture so you can more easily see the spots. It's another airplane passing us by while we are cruising at 41,000 feet.

[CRJ700Captain]

Reading several posts it looks like dust, but I cannot see any on the sensor or lens. Is there somewhere else it could be that I cannot see?

Thanks...

Lee

[Pekka]

It is sensor dust.

[gramps]

Sensor dust comes with the 20 D............if you do not want the dust you have to pay for the non dust option when buying the camera.

[wolf]

Reading several posts it looks like dust, but I cannot see any on the sensor or lens. Is there somewhere else it could be that I cannot see?

Thanks...

Lee

The dust specks are so tiny you would not be able to see them on the sensor with the naked eye. Clean Thou Sensor (http://www.pbase.com/copperhill/ccd_cleaning)

[dsa1875]

I had my first 20D in November and I experienced the same problem, twice. To put it in evidence, I suggest you make a picture of the sky (clear or cloudy does not matter) and you enhance levels (auto levels) with Photoshop. If it is like what I had, you will be horrified (you will see more spots)... I returned the camera to the dealer and got a new one. I had the same thing again and I am sending it to Canon this time. I suspect that, like I did, you probably created the problem or exacerbated it. Canon recommends the utilisation of a rubber blower to clean the sensor. Well, it does remove the occasional grain of dust, but these little spots are probably tiny liquid stains sent by the blower and impossible to remove without physically touching the sensor glass.. I know there were not present when I received my second camera.
Good luck to you.
Also, I would be glad to know if anybody has ever tried and succeeded in cleaning the sensor without sending it to Canon.
Daniel

[eosster]

Looks like sensor dust with just about every 20D, I got it too.

[CRJ700Captain]

Thanks guys. I thought it was, but many cleanings result in the same dust particles being shown. In other words, if it were dust I could get to wouldn't I be moving it around so different spots show up? LOL.

[drisley]

What method do you use to clean?
Also, do these spots show up at all apertures?

[CRJ700Captain]

I am simply using the recommended prodedure of using a dry blower....and yes, at all apertures as far as I can tell.

[RJSorensen]

I have sent two back . . . waiting for my third for dust on the sensor. Four out of five in the shipment my last one came in went back. Wish me luck with my third one. They say, you know, that the third time is the charm.

[robertwgross]

I guess I just can't understand why everybody here seems to be so helpless and frustrated over obvious sensor dust. They seem to go to a lot of trouble to fight with a vendor over this.

It takes me one cotton swab and a fraction of one drop of lens cleaner fluid. It takes a matter of seconds to swab the sensor, and most of that time is in the menu, setting it to the right mode.

---Bob Gross---

[ATHiker95]

You might want to try the solution offered at www.visibledust.com. Expensive, but get's lots of good reviews.

Mark