DSLR Image Sensor Issues


hanmt

New Member
Oct 28, 2007
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Singapore, Yew Tee
#1
Wonder any bros out there can enlighten me about the DSLR Image Sensor issue::think:

Assume there is no dust on the sensor, history of camera is about 3 years, used AWB all the time, shuttle court not more than 20k, camera being treated like wife, used L lens most of the time, manual setting most time, ISO ranging from 100 to 1000, exposure is based on built-in meter. Questions are:

1) Why colour of photo is more plain & less vibrant than before?
2) Ever sent for sensor cleaning recently, it is the agent used for cleaning affect the above?
3) Life span of sensor is up? I understand that sensor can normally last more than 5 years. (correct me is I'm wrong)
4) If all these are because of faulty sensor, it is wise to replace the sensor even though it can cost one big hole in my pocket?
5) Does Canon Singapore provide this service & can share roughly how much it cost?

Thank you much in advance for sharing. :sweat:
 

Sep 17, 2008
3,656
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0
#2
Wonder any bros out there can enlighten me about the DSLR Image Sensor issue::think:

Assume there is no dust on the sensor, history of camera is about 3 years, used AWB all the time, shuttle court not more than 20k, camera being treated like wife, used L lens most of the time, manual setting most time, ISO ranging from 100 to 1000, exposure is based on built-in meter. Questions are:

1) Why colour of photo is more plain & less vibrant than before?
2) Ever sent for sensor cleaning recently, it is the agent used for cleaning affect the above?
3) Life span of sensor is up? I understand that sensor can normally last more than 5 years. (correct me is I'm wrong)
4) If all these are because of faulty sensor, it is wise to replace the sensor even though it can cost one big hole in my pocket?
5) Does Canon Singapore provide this service & can share roughly how much it cost?

Thank you much in advance for sharing. :sweat:
huh? 3 years shldnt be much of a big problem. my 450d is abt that age soon. i dun have much probs with it either:think:
 

Rashkae

Senior Member
Nov 28, 2005
19,105
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0
#3
Wonder any bros out there can enlighten me about the DSLR Image Sensor issue::think:

Assume there is no dust on the sensor, history of camera is about 3 years, used AWB all the time, shuttle court not more than 20k, camera being treated like wife, used L lens most of the time, manual setting most time, ISO ranging from 100 to 1000, exposure is based on built-in meter. Questions are:

1) Why colour of photo is more plain & less vibrant than before?
2) Ever sent for sensor cleaning recently, it is the agent used for cleaning affect the above?
3) Life span of sensor is up? I understand that sensor can normally last more than 5 years. (correct me is I'm wrong)
4) If all these are because of faulty sensor, it is wise to replace the sensor even though it can cost one big hole in my pocket?
5) Does Canon Singapore provide this service & can share roughly how much it cost?

Thank you much in advance for sharing. :sweat:
1. A shuttle court may be related to badminton. You mean shutter count, right? And this does not impact the sensor, really.
2. So what if you use AWB or L lenses? This has nothing to do with your sensor.

As for your issues:
1. Do you have any before/after photos of the same scene, same settings, same lighting conditions? Otherwise you may just be viewing on a different monitor with different color calibration.
2. Nope, unless it's the wrong fluid and damaged the IR filter.
3. Nope. If your sensor dies, it's dead. No ifs or buts.
4. There is no indication it's the sensor. And for such an old cam, good luck finding parts.
5. They will not find anything wrong, and if by some miracle they still have stock of the sensor, it would be cheaper to get a second-hand newer body.
 

pokiemon

Senior Member
Mar 5, 2005
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#4
it is also possible you are shooting on different settings.
 

torak

New Member
Sep 4, 2009
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#5
Maybe it looks less vibrant cos u r viewing it on a different monitor/pc then the one u viewed in 3 yrs ago, or ur current monitor's colour calibration is not that accurate etc.
 

Octarine

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Jan 3, 2008
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#6
Assume there is no dust on the sensor, history of camera is about 3 years, used AWB all the time, shuttle court not more than 20k, camera being treated like wife, used L lens most of the time, manual setting most time, ISO ranging from 100 to 1000, exposure is based on built-in meter.
Apart from the 'shuttle court' (a place where NASA stores the Discovery and others?) I don't see how any of these things you describe here can have any effect on the life span of the sensor, could possibly cause a change in behaviour of the camera, resulting in a different colour reproduction. But .. if you treat your camera like your wife there might be something that only a wife appreciates and the camera should remain in dry cabinet :bsmilie:
Sometimes it's very simple and easy .. too simple to think about. What have you changed since you took those pictures that are supposedly more vibrant? Thanks to exif data you can check the camera settings and compare.
 

ovaltinemilo

Senior Member
Sep 12, 2009
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#7
1) Why colour of photo is more plain & less vibrant than before?
Have you double checked settings? did you changed your workflow? Can post before/after photo?
2) Ever sent for sensor cleaning recently, it is the agent used for cleaning affect the above?
Being CSC, they shdn't be screwing up the filter right...I don't feel this has any chance...
3) Life span of sensor is up? I understand that sensor can normally last more than 5 years. (correct me is I'm wrong)
If life span up, then probably you might have problem reading out the signals instead of only getting plainer colours.
4) If all these are because of faulty sensor, it is wise to replace the sensor even though it can cost one big hole in my pocket?
Change a heart might as well buy a new one?
5) Does Canon Singapore provide this service & can share roughly how much it cost?
Can call and ask...as non-canon user here...:)
 

hanmt

New Member
Oct 28, 2007
180
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Singapore, Yew Tee
#9
1. A shuttle court may be related to badminton. You mean shutter count, right? And this does not impact the sensor, really.
2. So what if you use AWB or L lenses? This has nothing to do with your sensor.

As for your issues:
1. Do you have any before/after photos of the same scene, same settings, same lighting conditions? Otherwise you may just be viewing on a different monitor with different color calibration.
2. Nope, unless it's the wrong fluid and damaged the IR filter.
3. Nope. If your sensor dies, it's dead. No ifs or buts.
4. There is no indication it's the sensor. And for such an old cam, good luck finding parts.
5. They will not find anything wrong, and if by some miracle they still have stock of the sensor, it would be cheaper to get a second-hand newer body.
Thanks to you Rashkae, for the time taken to share your view. Thanks for pointing out the error.
But I still think it the degeneration of the sensor sensitivity, why? I actually used two bodies to make comparision with the same setting, one of them is an year old CAM. The result after the shot was different, the one year old CAM produce must better colour and brighter.
Maybe you are right, get a new body is more wise than replacing the sensor for the old CAM.;)
 

wootsk

Deregistered
Aug 12, 2007
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Small Island
#10
Maybe I am just an unlucky guy to own this CAM :confused:
Don't be so fast to decide that yet. It could be your picture style or your AEB. Lastly can try viewing your older photos in the monitor and compare. I have been using my 30D for very long with no problem. But just sometime I might change some settings and forgot to change it back after shooting a while (A bad habit of mine :embrass:)
 

hanmt

New Member
Oct 28, 2007
180
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0
Singapore, Yew Tee
#11
Maybe it looks less vibrant cos u r viewing it on a different monitor/pc then the one u viewed in 3 yrs ago, or ur current monitor's colour calibration is not that accurate etc.
Nope! I used two bodies (the one I think with sensor problem & a one year old cam) took a scene with similar setting and viewed on same monitor, result was different. The one year old CAM shown better colour tone & brighter too.

it is also possible you are shooting on different settings.
Same setting.
 

cmeptb72

New Member
Nov 25, 2006
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West
#12
I just got my 40D back from CSC today.

The problem I faced with my 2 yr + cam is bad noise control & lack of sharpness even at iso levels 200 & 400 - (btw, this only happened a copule of weeks back & no, it's not due to lens or user problem)

Accordinbg to the service staff, the repair done was some "electronic adjustment" thingy.

Will try out the camera to see if all's ok - repair cost is slight;y under SGD 70.00
 

hanmt

New Member
Oct 28, 2007
180
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0
Singapore, Yew Tee
#13
1) Why colour of photo is more plain & less vibrant than before?
Have you double checked settings? did you changed your workflow? Can post before/after photo?
2) Ever sent for sensor cleaning recently, it is the agent used for cleaning affect the above?
Being CSC, they shdn't be screwing up the filter right...I don't feel this has any chance...
3) Life span of sensor is up? I understand that sensor can normally last more than 5 years. (correct me is I'm wrong)
If life span up, then probably you might have problem reading out the signals instead of only getting plainer colours.
4) If all these are because of faulty sensor, it is wise to replace the sensor even though it can cost one big hole in my pocket?
Change a heart might as well buy a new one?
5) Does Canon Singapore provide this service & can share roughly how much it cost?
Can call and ask...as non-canon user here...:)
Hi ovaltinemilo, thank you so much for the point to point feedback. Noted and will keep in mind of your views.
 

Blur Shadow

Senior Member
Sep 17, 2005
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#14
My D70 is 5 years old this year, and it doesn't give me any problems. Shutter count is in the 30,000 zone.
 

Rashkae

Senior Member
Nov 28, 2005
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#15
Nope! I used two bodies (the one I think with sensor problem & a one year old cam) took a scene with similar setting and viewed on same monitor, result was different. The one year old CAM shown better colour tone & brighter too.
Wahlau!!! 2 bodies, so 2 different sensors, different sensor technology, different JPEG engine, different metering circuitry, etc. And if it's 2 of the same body, have you compared the firmware version, etc?

Don't compare apples to oranges, stick to the same.
 

Octarine

Moderator
Staff member
Jan 3, 2008
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#16
Nope! I used two bodies (the one I think with sensor problem & a one year old cam) took a scene with similar setting and viewed on same monitor, result was different. The one year old CAM shown better colour tone & brighter too.
Similar in-camera settings as well? White Balance, Picture Style, Sharpening, Saturation, Brightness? There are certain presets in all cameras especially when used in Auto Mode, deactivate all in both cameras. Shoot identical scene with identical settings in Manual Mode at ideal exposure (+/-0EV), check that the same metering is used.
Personally, I don't think it is any sensor deterioration. Unless the camera was really exposed to harsh conditions semiconductors will not start such behaviour.
 

Jed

Senior Member
Jan 19, 2002
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#17
It's a little known fact but each time you activate your sensor it's response drops by about 0.014%. You can compensate for this in Photoshop over time (there are actions written that add incremental amounts of compensation) but after a given point the sensor will just need retiring.

I'm kidding. On a more serious note, why don't you post some original, vibrant images and some more current, plain images. Otherwise no one is really going to be able to suggest what the problem is.
 

Yutaka Go

Senior Member
May 22, 2010
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#18
I understand that DSLR sensor will grade image quality when it is overheated.
Overheating occurs when people use their DSLR to shoot a long video (over 45 mins).
After shooting video, if they use it to take pictures. the picture quality will be affected if the sensor is not cooled down.
 

Rashkae

Senior Member
Nov 28, 2005
19,105
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#19
I understand that DSLR sensor will grade image quality when it is overheated.
Overheating occurs when people use their DSLR to shoot a long video (over 45 mins).
After shooting video, if they use it to take pictures. the picture quality will be affected if the sensor is not cooled down.
1. That's ISO noise, not what the TS is describing.
2. His old DSLR would not have video yet.
3. Cameras will automatically enforce a cool-down period if they detect the sensor is too hot.
 

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