Is this just dust? (New 20D)

Archived from groups: rec.photo.digital (More info?)

David Bindle wrote:

> I just noticed a small dark spot in the skyline of some of my pictures.
> (It's in all the pictures... just harder to see in some) To check this out
> further, I photographed the clearest patch of blue sky I could find. (There
> are still a few wisps of cloud visible).
> The spot appears near the center... top third. It doesn't matter if I
> change lenses... it's still there.
> Here's a link to view two pictures... full frame and detail. The lens was
> focused at infinity. I thought that if it was dust on the sensor, it would
> be more in focus.
>
> http://davidbindle.tripod.com/testpictures/
>
> and no... its not a UFO

Yes it's dust on the sensor. You can't see dust on your lens.

If you put the camera in Av mode and select a high f number (eg f/22)
you'll see the dust particle becomes sharper. You might even see
more particles.

Put your camera in 'sensor clean' mode and give your sensor a
quick puff with a bulb blower.. That should fix it.

If not, you'll have to use a swab or brush to remove it.

Archived from groups: rec.photo.digital (More info?)

On Fri, 9 Sep 2005 07:53:25 -0600
In message <dfs44m$un7$1@tribune.usask.ca>
"David Bindle" <david.bindle@usask.ca> wrote:

> ...
> http://davidbindle.tripod.com/testpictures/
> ...

Yup... that's something on the sensor filter thingy. I just had mine
cleaned by Canon Irvine and it came back with all the old spots gone,
and a new one just left and down from center.

Jeff

Archived from groups: rec.photo.digital (More info?)

In article <dfs44m$un7$1@tribune.usask.ca>,
"David Bindle" <david.bindle@usask.ca> wrote:

___I just noticed a small dark spot in the skyline of some of my pictures.
___(It's in all the pictures... just harder to see in some) To check this out
___further, I photographed the clearest patch of blue sky I could find. (There
___are still a few wisps of cloud visible).


Check out


http://www.visibledust.com/index.html



Steve