Dot on image...

[Imperitus]

http://www.heidgerken.org/MiscPics/dot.jpg

This dots showing up in a lot of my pictures, but I can't find it on the lens. Is it possibly on the sensor or on the internal optics somewhere?

Any ideas?

-Drew

[Jon]

Looks like a classic spot on the sensor. There are several threads here on cleaning your sensor. Eclipse solution and PecPads work well.

[Cadwell]

Ah... it looks like that fairly common species "dustus bunnieus giganticus", common name - dust on the sensor.

Cleaning time I am afraid. Don't worry, it's not that difficult.

[Imperitus]

It's my welcome to the world of slrs I guess. :)

[OviV]

1) Remove lens
2) Turn on camera, press menu button, select Clean Sensor option.
3) Hold camera with lens mount facing down and use blower bulb to blow into camera.
4) Turn off camera, attach lens, and take a shot of the blue sky. If dust bunny is gone (likely), problem solved, if not, search forum for more thougrough and intrusive cleaning techniques.

Ovi

[EXA1a]

1) Remove lens
2) Turn on camera, press menu button, select Clean Sensor option.
3) Hold camera with lens mount facing down and use blower bulb to blow into camera.
4) Turn off camera, attach lens, and take a shot of the blue sky. If dust bunny is gone (likely), problem solved, if not, search forum for more thougrough and intrusive cleaning techniques.

Ovi
Very good and straight forward. Just two comments:

add 3) It might seem self-evident but I mention it anyway: Make sure that the blower bulb is REALLY, REALLY, REALLY clean and does not contain any dust or moisture! I read a few posts of people who thought it was clean but eventually blew more speckles onto the sensor than away from it.

add 4) Use smallest possible aperture manual focus on shortest distance. The smaller the aperture the more evident and crisp the bunnies.

--Jens--

[RichardtheSane]

1) Remove lens
2) Turn on camera, press menu button, select Clean Sensor option.
3) Hold camera with lens mount facing down and use blower bulb to blow into camera.
4) Turn off camera, attach lens, and take a shot of the blue sky. If dust bunny is gone (likely), problem solved, if not, search forum for more thougrough and intrusive cleaning techniques.

Ovi
Very good and straight forward. Just two comments:

add 3) It might seem self-evident but I mention it anyway: Make sure that the blower bulb is REALLY, REALLY, REALLY clean and does not contain any dust or moisture! I read a few posts of people who thought it was clean but eventually blew more speckles onto the sensor than away from it.

add 4) Use smallest possible aperture manual focus on shortest distance. The smaller the aperture the more evident and crisp the bunnies.

--Jens--

Add 1a.

Make sure you have a good, full battery in.
If you have the battery grip you can use this, but I would recommend removing it and placing the battery direct in the camera.

Just for saftey, as the shutter is held open electronically, and any power faliure will cause the shutter to close. If there is something in the way this is very bad indeed.

[Chris1le]

If the blower does not work try this.

http://www.pbase.com/copperhill/ccd_cleaning

[Sugrat]

Question, under normal handing conditions how long have members had their cameras before the sensor needed cleaning? Months? Weeks? Years?

I'm interested in finding out.

[Jon]

I just cleaned mine for the first time after close to two years. And it was nowhere near as bad as most of the ones that have been posted.

[robertdrake]

Just tried the blower techique on my nearly two week old 20D, just redistributed the dust....might be one less spec.

[Sugrat]

Just tried the blower techique on my nearly two week old 20D, just redistributed the dust....might be one less spec.

Two Weeks? where have you been changing your lenses? :-)

[Jon]

It's that photo shoot in the flour mill . . .

[robertdrake]

Just tried the blower techique on my nearly two week old 20D, just redistributed the dust....might be one less spec.

Two Weeks? where have you been changing your lenses? :-)

I'd guess its been there since I bought it. Lots of folks have gotten these with dust in them. Its only a few specs, only one is really easy to see, and that at f22 right at the sky. I'm a bit nervous using the pec-pad method of cleaning, as I don't want to give Canon a reason to not honour their warranty.

[jimsloy]

don't forget to add:

2.1) Dunk camera body in distilled water

[danphoto1]

Clasic dirty sensor just frop into the gentile cycle