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sensor dust



 
 
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  #1  
Old March 15th 07, 03:15 AM posted to rec.photo.digital.point+shoot
StormChaser
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Posts: 1
Default sensor dust

Is it possible for a small compact
to get dust on its sensor?

I thought only DSLR had this problem
because their lenses could be removed.

I have a HP 707 with this problem.
Spots show up on pictures with large
white or blue sky areas.

What can be done about this problem?



  #2  
Old March 15th 07, 09:33 AM posted to rec.photo.digital.point+shoot
David J Taylor[_2_]
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Posts: 398
Default sensor dust

StormChaser wrote:
Is it possible for a small compact
to get dust on its sensor?

I thought only DSLR had this problem
because their lenses could be removed.

I have a HP 707 with this problem.
Spots show up on pictures with large
white or blue sky areas.

What can be done about this problem?


Usually, the compact camera has a sealed sensor, making it very difficult
for dust or dirt to get in. You might like to post a picture so that
people can be sure dust is really the problem. If shaking the camera
doesn't help, you may need to send it for repair (or buy new). You can
reduce the effect on the image with a program like Paint Shop Pro.

Cheers,
David


  #3  
Old March 16th 07, 04:56 PM posted to rec.photo.digital.point+shoot
Ben Brugman
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Posts: 271
Default sensor dust


"David J Taylor"
schreef in bericht k...
StormChaser wrote:
Is it possible for a small compact
to get dust on its sensor?

I thought only DSLR had this problem
because their lenses could be removed.

I have a HP 707 with this problem.
Spots show up on pictures with large
white or blue sky areas.

What can be done about this problem?


Usually, the compact camera has a sealed sensor, making it very difficult
for dust or dirt to get in. You might like to post a picture so that


The volume of the most compact camera's is NOT constant.
Air presure is not constant.
The space in front of the sensor is air.
(Compact camera's do not have a sealed sensor).

Because of the volume change (zooming etc). the camera is not
airtight, this means air gets sucked in and blown out. While extending
the lens this is going quite rappidly, so there are some 'large' holes in
the camera. When the air get's sucked in, dust get's sucked in as well.

Depending where the camera is kept, there will be dust on the camera.
Keeping the camera in a camerabag which is 'clean' will keep the camera
clean as wel (fairly). Keeping the camera in a dusty surrounding, for
example in your pants or your pockets in your coat then the camera will
get dusty.

Zooming makes that air (and if present) dust get's sucked in.

Sensors in most compact camera's are very difficult to reach even for
professionals and often the operation of removing the dust is so
expensive that the camera is not worth this operation.

So with the camera, you are probably stuck with the dust.

ben brugman.


people can be sure dust is really the problem. If shaking the camera
doesn't help, you may need to send it for repair (or buy new). You can
reduce the effect on the image with a program like Paint Shop Pro.

Cheers,
David



  #4  
Old March 16th 07, 10:26 PM posted to rec.photo.digital.point+shoot
David J Taylor[_2_]
external usenet poster
 
Posts: 398
Default sensor dust

Ben Brugman wrote:
[]
Usually, the compact camera has a sealed sensor, making it very
difficult for dust or dirt to get in. You might like to post a
picture so that


The volume of the most compact camera's is NOT constant.
Air presure is not constant.
The space in front of the sensor is air.
(Compact camera's do not have a sealed sensor).


The sensor is sealed. Period. The air round the sensor is not, as you
say.

David


  #5  
Old March 18th 07, 07:07 PM posted to rec.photo.digital.point+shoot
Max from Holland
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Posts: 1
Default sensor dust


Dust on a compact`s sensor? That`s very unlikely.


 




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