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Bad sensor dust



 
 
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  #11  
Old February 3rd 19, 06:32 PM posted to rec.photo.digital
nospam
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Posts: 24,165
Default Bad sensor dust

In article , Savageduck
wrote:

recent slrs are much better, often with a dust shaker.

The owners of cameras with sensor dust removal systems still need to make
sure that it has been turned on.


it normally defaults to on.


However, there are some idiots who think they are extending the battery
charge by turning off sensor dust removal. That is a false economy.


technically they are extending it, however, it's nothing that would
ever be noticed. taking a single photo will wipe out whatever savings,
but as you say, they're idiots.
  #12  
Old February 3rd 19, 09:04 PM posted to rec.photo.digital
dale
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Posts: 187
Default Bad sensor dust

On 2/3/2019 6:45 AM, Alfred Molon wrote:
Here is an example:
https://www.flickr.com/photos/marcod...2963838558/in/
album-72157705868008995/


your link doesn't wrap ...


The blobs ...



--
dale - https://www.dalekelly.org/
Not a professional opinion unless specified.
  #13  
Old February 3rd 19, 11:52 PM posted to rec.photo.digital
nospam
external usenet poster
 
Posts: 24,165
Default Bad sensor dust

In article , dale
wrote:

Here is an example:
https://www.flickr.com/photos/marcod...2963838558/in/
album-72157705868008995/


your link doesn't wrap ...


wrapping makes no difference whatsoever.

the problem is a lacks of url delimiters and ****ty newsreader software.
  #14  
Old February 3rd 19, 11:52 PM posted to rec.photo.digital
Alfred Molon[_4_]
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Posts: 2,591
Default Bad sensor dust

In article ,
says...

On 2/3/2019 6:45 AM, Alfred Molon wrote:
Here is an example:
https://www.flickr.com/photos/marcod...2963838558/in/
album-72157705868008995/


your link doesn't wrap ...


Yes, my newstreader is a bit old-fashioned.
--
Alfred Molon

Olympus E-series DSLRs and micro 4/3 forum at
https://tech.groups.yahoo.com/group/MyOlympus/
https://myolympus.org/ photo sharing site
  #15  
Old February 3rd 19, 11:55 PM posted to rec.photo.digital
nospam
external usenet poster
 
Posts: 24,165
Default Bad sensor dust

In article , Alfred
Molon wrote:

On 2/3/2019 6:45 AM, Alfred Molon wrote:
Here is an example:
https://www.flickr.com/photos/marcod...2963838558/in/
album-72157705868008995/


your link doesn't wrap ...


Yes, my newstreader is a bit old-fashioned.


if you used url delimiters, it would still work.
  #16  
Old February 4th 19, 04:07 AM posted to rec.photo.digital
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Posts: 24,165
Default Bad sensor dust

In article ,
RichA wrote:


Just one more reason to love Olympus. Those problems are alien.


no camera is immune.
  #17  
Old February 4th 19, 02:59 PM posted to rec.photo.digital
Carlos E.R.
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Posts: 278
Default Bad sensor dust

On 03/02/2019 16.33, nospam wrote:
In article , Carlos E.R.
wrote:

Here is an example:
https://www.flickr.com/photos/marcod...7705868008995/

The blobs at the top left are the most visible ones, but
there actually are dust blobs across the entire frame.
And apparently the photographer wasan't even aware of
the dust, as the blobs are on all or almost all images.

Yup!
The dust is very conspicuous, and is going to need some major fixing in
post. That sensor is in dire need of cleaning, and the photographer should
have taken an emergency cleaning kit with him on that trip. When you know
that you are going to be in an environment with wind, dust, and sand, there
is no excuse for not being prepared. At a minimum a lot of care should be
taken with lens changes.


That assumes he knows how to use that kit (I don't).


it's never too late to learn. read the instructions


No such instructions on mine. They say to bring the camera to the
service shop.

They run the service gratis if you go to certain sponsored events, but
they do them some three hours drive from here, and they warn that they
will do only a limited number, so no warranty of getting it done.

My idea is to go there once and see how they do it.

or do a search on
how. there are plenty of detailed explanations and even videos. it's
not difficult. even just one squeeze of a rocket blower would make a
dramatic improvement.

Maybe he takes the
camera to a shop to be cleaned by a professional back home that knows
how to do it, and he wouldn't dare try to do it himself, even less on a
trip.


or maybe he doesn't care.


You do not know that.

--
Cheers, Carlos.
  #18  
Old February 4th 19, 03:08 PM posted to rec.photo.digital
Carlos E.R.
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Posts: 278
Default Bad sensor dust

On 03/02/2019 17.24, Savageduck wrote:
Carlos E.R. wrote:
On 03/02/2019 14.20, Savageduck wrote:
Savageduck wrote:
Alfred Molon wrote:
Here is an example:
https://www.flickr.com/photos/marcod...2963838558/in/
album-72157705868008995/

The blobs at the top left are the most visible ones, but
there actually are dust blobs across the entire frame.
And apparently the photographer wasan't even aware of
the dust, as the blobs are on all or almost all images.

Yup!
The dust is very conspicuous, and is going to need some major fixing in
post. That sensor is in dire need of cleaning, and the photographer should
have taken an emergency cleaning kit with him on that trip. When you know
that you are going to be in an environment with wind, dust, and sand, there
is no excuse for not being prepared. At a minimum a lot of care should be
taken with lens changes.


That assumes he knows how to use that kit (I don't). Maybe he takes the
camera to a shop to be cleaned by a professional back home that knows
how to do it, and he wouldn't dare try to do it himself, even less on a
trip.


If he does not know how to go about cleaning the sensor on a DSLR, or MILC,
he, and anybody who owns one should invest in the basic tools, correct size
swabs, PEC pad, a Giottos Rocket, a bottle of Eclipse Fluid, and a
magnifier with some sort of illuminator.


I don't have any of that, nor my friends. I don't even know what they are.


Then make the effort to learn how to go about cleaning a sensor, even on
the road away from home. Especially if one is in an environment where dust
contamination is likely.

I had no idea about dust, and sensor cleaning until I got my first DSLR, a
Nikon D70. I learned very quickly.


Also, I believe the evidence that he is either oblivious to the problem, or
just doesn't care is demonstrated by his posting of all those contaminated
photographs to Flickr with no effort to fix anything.


Well, maybe the photos themselves are important (to him) and he can not
go back to repeat them. I have photos like that, with errors, but they
are important to me.

If they were important to him he should have taken care when producing
them. He could certainly have cleaned up the spots on the images with post
processing before publishing them in Flickr.


I wouldn't know how.


What camera do you shoot?

If you have photos that are important to you, but have "errors", do
whatever you can to fix those errors in post. That is why editing tools
exist.


You can not correct focus on post.

--
Cheers, Carlos.
  #19  
Old February 4th 19, 03:25 PM posted to rec.photo.digital
Savageduck[_3_]
external usenet poster
 
Posts: 16,487
Default Bad sensor dust

Carlos E.R. wrote:
On 03/02/2019 16.33, nospam wrote:
In article , Carlos E.R.
wrote:

Here is an example:
https://www.flickr.com/photos/marcod...7705868008995/

The blobs at the top left are the most visible ones, but
there actually are dust blobs across the entire frame.
And apparently the photographer wasan't even aware of
the dust, as the blobs are on all or almost all images.

Yup!
The dust is very conspicuous, and is going to need some major fixing in
post. That sensor is in dire need of cleaning, and the photographer should
have taken an emergency cleaning kit with him on that trip. When you know
that you are going to be in an environment with wind, dust, and sand, there
is no excuse for not being prepared. At a minimum a lot of care should be
taken with lens changes.

That assumes he knows how to use that kit (I don't).


it's never too late to learn. read the instructions


No such instructions on mine. They say to bring the camera to the
service shop.

So they can over-charge you for what you can do at home.

Buy the cleaning tools, learn what to do, and save yourself a whole load of
cash.

http://www.cleaningdigitalcameras.com
https://photosol.com
https://www.micro-tools.com/collections/d-slr-kits-aps-c-sensors

They run the service gratis if you go to certain sponsored events, but
they do them some three hours drive from here, and they warn that they
will do only a limited number, so no warranty of getting it done.

My idea is to go there once and see how they do it.

They start by fondling your wallet.

or do a search on
how. there are plenty of detailed explanations and even videos. it's
not difficult. even just one squeeze of a rocket blower would make a
dramatic improvement.

Maybe he takes the
camera to a shop to be cleaned by a professional back home that knows
how to do it, and he wouldn't dare try to do it himself, even less on a
trip.


or maybe he doesn't care.


You do not know that.




--
Regards,
Savageduck
  #20  
Old February 4th 19, 03:33 PM posted to rec.photo.digital
Savageduck[_3_]
external usenet poster
 
Posts: 16,487
Default Bad sensor dust

Carlos E.R. wrote:
On 03/02/2019 17.24, Savageduck wrote:
Carlos E.R. wrote:
On 03/02/2019 14.20, Savageduck wrote:
Savageduck wrote:
Alfred Molon wrote:
Here is an example:
https://www.flickr.com/photos/marcod...2963838558/in/
album-72157705868008995/

The blobs at the top left are the most visible ones, but
there actually are dust blobs across the entire frame.
And apparently the photographer wasan't even aware of
the dust, as the blobs are on all or almost all images.

Yup!
The dust is very conspicuous, and is going to need some major fixing in
post. That sensor is in dire need of cleaning, and the photographer should
have taken an emergency cleaning kit with him on that trip. When you know
that you are going to be in an environment with wind, dust, and sand, there
is no excuse for not being prepared. At a minimum a lot of care should be
taken with lens changes.

That assumes he knows how to use that kit (I don't). Maybe he takes the
camera to a shop to be cleaned by a professional back home that knows
how to do it, and he wouldn't dare try to do it himself, even less on a
trip.


If he does not know how to go about cleaning the sensor on a DSLR, or MILC,
he, and anybody who owns one should invest in the basic tools, correct size
swabs, PEC pad, a Giottos Rocket, a bottle of Eclipse Fluid, and a
magnifier with some sort of illuminator.


I don't have any of that, nor my friends. I don't even know what they are.

All it takes to find out what 'they are' is to search, and then buy. Amazon
should lead you right to those items. Then you will have more knowledge
than your friends.


Then make the effort to learn how to go about cleaning a sensor, even on
the road away from home. Especially if one is in an environment where dust
contamination is likely.

I had no idea about dust, and sensor cleaning until I got my first DSLR, a
Nikon D70. I learned very quickly.


Also, I believe the evidence that he is either oblivious to the problem, or
just doesn't care is demonstrated by his posting of all those contaminated
photographs to Flickr with no effort to fix anything.

Well, maybe the photos themselves are important (to him) and he can not
go back to repeat them. I have photos like that, with errors, but they
are important to me.

If they were important to him he should have taken care when producing
them. He could certainly have cleaned up the spots on the images with post
processing before publishing them in Flickr.


I wouldn't know how.


Are you reluctant to learn anything?

Cleaning up unwanted dust spots or other blemishes is a feature of most
photo editing software, even some of the free software.



What camera do you shoot?


....and which camera was it that you use?

If you have photos that are important to you, but have "errors", do
whatever you can to fix those errors in post. That is why editing tools
exist.


You can not correct focus on post.


That is a whole different problem.

--
Regards,
Savageduck
 




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