Page 1 of 2 12 LastLast
Results 1 to 20 of 26

Thread: DSLR Image Sensor Issues

  1. #1
    Member
    Join Date
    Oct 2007
    Location
    Singapore, Yew Tee
    Posts
    180

    Default DSLR Image Sensor Issues

    Wonder any bros out there can enlighten me about the DSLR Image Sensor issue:

    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.
    To capture the greatest moment by Canon. My flickr

  2. #2
    Deregistered allenleonhart's Avatar
    Join Date
    Sep 2008
    Posts
    3,656
    Blog Entries
    1

    Default Re: DSLR Image Sensor Issues

    Quote Originally Posted by hanmt View Post
    Wonder any bros out there can enlighten me about the DSLR Image Sensor issue:

    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.
    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

  3. #3

    Default Re: DSLR Image Sensor Issues

    Quote Originally Posted by hanmt View Post
    Wonder any bros out there can enlighten me about the DSLR Image Sensor issue:

    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.
    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.
    Alpha

  4. #4

    Default Re: DSLR Image Sensor Issues

    it is also possible you are shooting on different settings.

  5. #5

    Default Re: DSLR Image Sensor Issues

    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.

  6. #6
    Moderator Octarine's Avatar
    Join Date
    Jan 2008
    Location
    Pasir Ris
    Posts
    12,422

    Default Re: DSLR Image Sensor Issues

    Quote Originally Posted by hanmt View Post
    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
    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.
    EOS

  7. #7
    Senior Member ovaltinemilo's Avatar
    Join Date
    Sep 2009
    Location
    Sin jia Po lah
    Posts
    2,820

    Default Re: DSLR Image Sensor Issues

    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...
    ...:::..::.Nikon.::.:::..
    RGB Metering & Focusing.

  8. #8
    Member
    Join Date
    Oct 2007
    Location
    Singapore, Yew Tee
    Posts
    180

    Default Re: DSLR Image Sensor Issues

    Quote Originally Posted by allenleonhart View Post
    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
    Maybe I am just an unlucky guy to own this CAM
    To capture the greatest moment by Canon. My flickr

  9. #9
    Member
    Join Date
    Oct 2007
    Location
    Singapore, Yew Tee
    Posts
    180

    Default Re: DSLR Image Sensor Issues

    Quote Originally Posted by Rashkae View Post
    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.
    To capture the greatest moment by Canon. My flickr

  10. #10
    Deregistered wootsk's Avatar
    Join Date
    Aug 2007
    Location
    Small Island
    Posts
    1,689

    Default Re: DSLR Image Sensor Issues

    Quote Originally Posted by hanmt View Post
    Maybe I am just an unlucky guy to own this CAM
    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 )

  11. #11
    Member
    Join Date
    Oct 2007
    Location
    Singapore, Yew Tee
    Posts
    180

    Default Re: DSLR Image Sensor Issues

    Quote Originally Posted by torak View Post
    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.

    Quote Originally Posted by pokiemon View Post
    it is also possible you are shooting on different settings.
    Same setting.
    To capture the greatest moment by Canon. My flickr

  12. #12

    Default Re: DSLR Image Sensor Issues

    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
    hasta la justicia siempre

  13. #13
    Member
    Join Date
    Oct 2007
    Location
    Singapore, Yew Tee
    Posts
    180

    Default Re: DSLR Image Sensor Issues

    Quote Originally Posted by ovaltinemilo View Post
    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.
    To capture the greatest moment by Canon. My flickr

  14. #14

    Default Re: DSLR Image Sensor Issues

    My D70 is 5 years old this year, and it doesn't give me any problems. Shutter count is in the 30,000 zone.

  15. #15

    Default Re: DSLR Image Sensor Issues

    Quote Originally Posted by hanmt View Post
    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.
    Alpha

  16. #16
    Moderator Octarine's Avatar
    Join Date
    Jan 2008
    Location
    Pasir Ris
    Posts
    12,422

    Default Re: DSLR Image Sensor Issues

    Quote Originally Posted by hanmt View Post
    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.
    EOS

  17. #17
    Senior Member
    Join Date
    Jan 2002
    Location
    UK
    Posts
    3,911

    Default Re: DSLR Image Sensor Issues

    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.

  18. #18

    Default Re: DSLR Image Sensor Issues

    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.

  19. #19

    Default Re: DSLR Image Sensor Issues

    Quote Originally Posted by Yutaka Go View Post
    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.
    Alpha

  20. #20
    Senior Member ovaltinemilo's Avatar
    Join Date
    Sep 2009
    Location
    Sin jia Po lah
    Posts
    2,820

    Default Re: DSLR Image Sensor Issues

    Quote Originally Posted by Rashkae View Post
    3. Cameras will automatically enforce a cool-down period if they detect the sensor is too hot.
    DSLRs are really smart technology. Tt's why we pay premium for them
    ...:::..::.Nikon.::.:::..
    RGB Metering & Focusing.

Page 1 of 2 12 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •