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09/12/2007 10:23:30 AM · #1 |
If I see a dust spot on the top-right corner of a shot, does this mean the dust spot is located on the top-right of the sensor as I look at it?
Or does the image get inverted? |
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09/12/2007 10:40:37 AM · #2 |
| Gets inverted...should be lower edge (lower right I think in this case?). |
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09/12/2007 10:44:38 AM · #3 |
| Ah, that adds up. Thanks for the reply. |
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09/12/2007 10:52:51 AM · #4 |
Now having messed about with it I can indeed confirm...
Top-right on the image = Lower-right on the sensor :) |
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09/12/2007 11:05:57 AM · #5 |
are you sure it is not top right on image = lower LEFT on sensor...
Message edited by author 2007-09-12 11:06:25.
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09/12/2007 11:08:16 AM · #6 |
image is inverted, not mirrored.
PS. think about your perspective relative to the scene, AND to the sensor.
Message edited by author 2007-09-12 11:11:20. |
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09/12/2007 11:15:28 AM · #7 |
I think the image is inverted, but that term means reversing both left/right and top/bottom.
Hold your camera up like you were going to take a picture and imagine the camera's made of glass so you can see the sensor. What's in the upper right of the LCD screen would hit the lower left part of the sensor.
Then, when you turn the camera around to look at the sensor, what was the lower left becomes the lower right, the same way someone's left hand appears on the right when you look into their face.
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09/12/2007 11:19:08 AM · #8 |
Originally posted by levyj413:
Then, when you turn the camera around to look at the sensor, what was the lower left becomes the lower right, the same way someone's left hand appears on the right when you look into their face. |
WRONG!!!
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09/12/2007 11:19:50 AM · #9 |
Originally posted by srdanz:
WRONG!!!
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LOL. I thought that was a great entry.
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09/12/2007 11:51:43 AM · #10 |
Originally posted by levyj413:
I think the image is inverted, but that term means reversing both left/right and top/bottom.
Hold your camera up like you were going to take a picture and imagine the camera's made of glass so you can see the sensor. What's in the upper right of the LCD screen would hit the lower left part of the sensor.
Then, when you turn the camera around to look at the sensor, what was the lower left becomes the lower right, the same way someone's left hand appears on the right when you look into their face. |
In a view camera, where the lens focuses directly on a ground glass and we view the image from behind the ground glass, we view upper right as lower left on the glass. But if we look at the glass from the front of the camera (if we even could) that lower left would be lower right.
And that's how we see the sensor when we clean it: from the front. What's upper right in the image (as viewed from the camera's POV) is lower right on the sensor (as seen from the front of the camera when cleaning).
R.
R.
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