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#1
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Bad sensor dust
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. The camera is a DSLR with an optical viewfinder and I#m guessing that the images were not inspected during the trip to Algeria, otherwise the photographer would have noticed the dust on the sensor. Actually, looking at the photos of previous trips (the Namibia one of last summer for instance) the dust on the sensor was already there, so it seems that the photographer doesn't even know that the problem exists, or simply doesn't care. or maybe likes that 'blobby' look ;-) -- 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 |
#2
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Bad sensor dust
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. The camera is a DSLR with an optical viewfinder and I#m guessing that the images were not inspected during the trip to Algeria, otherwise the photographer would have noticed the dust on the sensor. Given the camera, I suspect that the photographer is oblivious of the potential dust problem with all ILCs, DSLR, or MILC. It is probably his first DSLR. Actually, looking at the photos of previous trips (the Namibia one of last summer for instance) the dust on the sensor was already there, so it seems that the photographer doesn't even know that the problem exists, or simply doesn't care. or maybe likes that 'blobby' look ;-) If he is that oblivious to the potential dust problem, it is inexcusable, and he should stick to using a compact. -- Regards, Savageduck |
#3
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Bad sensor dust
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. The camera is a DSLR with an optical viewfinder and I#m guessing that the images were not inspected during the trip to Algeria, otherwise the photographer would have noticed the dust on the sensor. Given the camera, I suspect that the photographer is oblivious of the potential dust problem with all ILCs, DSLR, or MILC. It is probably his first DSLR. Actually, looking at the photos of previous trips (the Namibia one of last summer for instance) the dust on the sensor was already there, so it seems that the photographer doesn't even know that the problem exists, or simply doesn't care. or maybe likes that 'blobby' look ;-) If he is that oblivious to the potential dust problem, it is inexcusable, and he should stick to using a compact. 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. -- Regards, Savageduck |
#4
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Bad sensor dust
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. .... 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. -- Cheers, Carlos. |
#5
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Bad sensor dust
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 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. |
#6
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Bad sensor dust
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. 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. 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. -- Regards, Savageduck |
#7
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Bad sensor dust
In article , Savageduck
wrote: I had no idea about dust, and sensor cleaning until I got my first DSLR, a Nikon D70. I learned very quickly. that was a dust magnet, along with other slrs of the day. recent slrs are much better, often with a dust shaker. 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. 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. yep |
#8
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Bad sensor dust
nospam wrote:
In article , Savageduck wrote: I had no idea about dust, and sensor cleaning until I got my first DSLR, a Nikon D70. I learned very quickly. that was a dust magnet, along with other slrs of the day. Yup! I had no choice other than to learn how to clean sensors with that D70. That or claim that the dust bunnies were some sort of artistic expression. 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. 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. 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. yep -- Regards, Savageduck |
#9
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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. |
#10
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Bad sensor dust
nospam wrote:
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. -- Regards, Savageduck |
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