Position of dust on sensor VS computer screen

Hi everyone!
I cleaned the sensor on my Canon 30D. After downloading the photo, 2 bits
still appear on the upper left corner of my computer screen.
Where is that dust located on the sensor? Upper right corner? Thanks.
Marcel

"Celcius" wrote in message
...
Hi everyone!
I cleaned the sensor on my Canon 30D. After downloading the photo, 2 bits
still appear on the upper left corner of my computer screen.
Where is that dust located on the sensor? Upper right corner? Thanks.
Marcel


bottom right.

Celcius wrote:
Hi everyone!
I cleaned the sensor on my Canon 30D. After downloading the photo, 2
bits still appear on the upper left corner of my computer screen.
Where is that dust located on the sensor? Upper right corner? Thanks.
Marcel

No, the light comes down from the upper left of scene, through the centre of
the lens and to the lower right as seen from behind the camera or lower left
looking into the front of the camera towards the sensor.

Mike.
--
If reply address = connectfee, add an r because it is free not fee.

Celcius wrote:
Hi everyone!
I cleaned the sensor on my Canon 30D. After downloading the photo, 2 bits
still appear on the upper left corner of my computer screen.
Where is that dust located on the sensor? Upper right corner? Thanks.
Marcel


The image on the sensor is upside down with respect to the subject, and
is rotated 180° for viewing, so spots at upper left on the image
originated at the bottom right of the sensor.


Colin D.

--
Posted via a free Usenet account from http://www.teranews.com

"Celcius" wrote in message
...
Hi everyone!
I cleaned the sensor on my Canon 30D. After downloading the photo, 2 bits
still appear on the upper left corner of my computer screen.
Where is that dust located on the sensor? Upper right corner? Thanks.
Marcel

I guess it's bottom right.
Thanks all!
Marcel

"Celcius" wrote in
:


"Celcius" wrote in message
...
Hi everyone!
I cleaned the sensor on my Canon 30D. After downloading the photo, 2
bits still appear on the upper left corner of my computer screen.
Where is that dust located on the sensor? Upper right corner? Thanks.
Marcel

I guess it's bottom right.

No; it's not. All the answers thus far are incorrect.

When you look into the front of the camera, left and right are not reversed
from the image on the review LCD or computer monitor, because you swapped
them when you rotated the camera 180 degrees.

The specks are in the lower left, looking into the front of the camera.

You can verify this with a lens and a sheet of paper in a dark room,
pointed at a bright window with a silouhette in one corner.

--


John P Sheehy

"John Sheehy" wrote in message
...
"Celcius" wrote in
:


"Celcius" wrote in message
...
Hi everyone!
I cleaned the sensor on my Canon 30D. After downloading the photo, 2
bits still appear on the upper left corner of my computer screen.
Where is that dust located on the sensor? Upper right corner? Thanks.
Marcel

I guess it's bottom right.

No; it's not. All the answers thus far are incorrect.

When you look into the front of the camera, left and right are not
reversed
from the image on the review LCD or computer monitor, because you swapped
them when you rotated the camera 180 degrees.

The specks are in the lower left, looking into the front of the camera.

You can verify this with a lens and a sheet of paper in a dark room,
pointed at a bright window with a silouhette in one corner.

--

John,
Is "looking in the front of the camera", the same as looking at the sensor?
In other words, what you're saying is that the speck of dust which shows on
the upper left corner of my computer screen is actually on the lower left
corner of my sensor?
Thanks for taking the time. I was dobtful and now, I'm completely lost ;-)))
Marcel

"John Sheehy" wrote in message
...

The specks are in the lower left, looking into the front of the camera.

I guess the people who replied meant to say that the dust is in the bottom
right *when looking at the camera from the rear*. The only trouble with
this is that you would not be able to see the sensor (to clean it) without
the aid of a mirror ;-)

"Adrian Boliston" wrote in message
...
"John Sheehy" wrote in message
...

The specks are in the lower left, looking into the front of the camera.

I guess the people who replied meant to say that the dust is in the bottom
right *when looking at the camera from the rear*. The only trouble with
this is that you would not be able to see the sensor (to clean it) without
the aid of a mirror ;-)
Adrian,
So far, I get: "look(ing) into the front of the camera..." , "when looking
at the camera from the rear"... I'm confused... very confused ;-)
Please, when looking at the sensor to clean it, then where? Thanks
Marcel

On Sat, 16 Jun 2007 10:04:01 -0400, "Celcius"
wrote:


"Adrian Boliston" wrote in message
...
"John Sheehy" wrote in message
...

The specks are in the lower left, looking into the front of the camera.

I guess the people who replied meant to say that the dust is in the bottom
right *when looking at the camera from the rear*. The only trouble with
this is that you would not be able to see the sensor (to clean it) without
the aid of a mirror ;-)
Adrian,
So far, I get: "look(ing) into the front of the camera..." , "when looking
at the camera from the rear"... I'm confused... very confused ;-)
Please, when looking at the sensor to clean it, then where? Thanks
Marcel


It's in the bottom left, as you look at the sensor to clean it.
The lens both inverts and reverses the image on the sensor; as you
look at the sensor *from the front*, you're reversing it again, but
not inverting it.
Imagine this: use a piece of frosted glass, and see the image from the
lens from behind the glass; this is how the sensor sees the image from
the lens: upside down, and left for right. If you now move in front of
the glass, the image is still upside down, but it's not left for right
anymore.
Easy. :-)

--
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Hillary Clinton gave a high school commencement
speech at Constitution Hall in Washington D.C.
on Wednesday. She loves speaking at school
graduations. Normally when she tells people
how they should live, they are not required
to sit still for it.