7D sensor

isteka · Feb 28, 2012

Hi Everybody,

Sorry if I'm repeating any older thread but searched and couldn't find. I wonder how much does sensor replacement cost on 7d?
Thank You

JTAnFIA · Feb 28, 2012

Maybe a more important question would be: Why do you ask?
--
Fish are evil

The_cheshirecat · Feb 28, 2012

Does the sensor really need to be replaced because you screwed it up, or was it the piece covering the sensor damaged? The two are distinctly different parts and many mistake the cover plate (or whatever you call it, it is still necessary) for the sensor.

As for cost, that will depend on a number of factors. An older thread addressing this won’t likely reflect the recent price increases which seem to have surfaced throughout Canon’s operations.

--

I started in the 50's - my first picture was taken with a Leica and hooked me for life. I no longer use my Leicas, but I am still taking pictures. Some things never change.

isteka · Feb 28, 2012

Thanks for responses.

The reason is red dots - they appear after 1 second or more exposure and if I'm not mistaken it's dead pixels. I'm not sure any other way to get rid of them.

Dareshooter · Feb 28, 2012

Maybe you should ask for a quote at your nearest repair center,it would be a the more expedient approach would it not ?

MonteCarlo67 · Feb 28, 2012

It does sound like a dead, hot or stuck pixel problem. All cameras will do this to some extent particularly with long exposures. If you shoot in RAW mode, then DPP or other programs like Adobe Photoshop, Elements and Lightroom will map them out automatically. Otherwise, you can contact Canon about having a pixel mapping done where they map out the bad pixels. I have heard of them even doing this for free out of warranty (minus shipping) but don't count on it. Either way, a trip to Canon for your camera might reveal a much cheaper fix than a sensor replacement.

There is a method for doing your own pixel mapping that some (myself included) swear by and others say is BS. I have used it on several cameras and I am convinced it works. You simply put the camera into manual cleaning mode with the lens cap or body cap on (you don't actually go in and do a cleaning) for at least 30 seconds. Do a before and after of a dark (cap on manual exposure) to see if it is working. My 7D had two red pixels on long exposures right out of the box. I ran this mapping two or three times and they are now gone. Good luck!

Mark B. · Feb 28, 2012

isteka said:
Hi Everybody,

Sorry if I'm repeating any older thread but searched and couldn't find. I wonder how much does sensor replacement cost on 7d?
Thank You

There might be a reason you couldn't find anything with a search. The sensor is almost certainly the single most expensive part of the camera, as well as taking a lot of expertise to replace if that's even possible. My guess is that by the time you pay for the sensor and the labor to replace it you're well more than half the cost of the camera and approaching the cost of a new camera.

Mark

isteka · Feb 29, 2012

Thank You,

I'll try everything proposed to avoid sensor replacement, not only for financial matters, but maybe I'm wrong but I prefer my "toys" not to be taken apart.
Cheers!

MonteCarlo67 said:
It does sound like a dead, hot or stuck pixel problem. All cameras will do this to some extent particularly with long exposures. If you shoot in RAW mode, then DPP or other programs like Adobe Photoshop, Elements and Lightroom will map them out automatically. Otherwise, you can contact Canon about having a pixel mapping done where they map out the bad pixels. I have heard of them even doing this for free out of warranty (minus shipping) but don't count on it. Either way, a trip to Canon for your camera might reveal a much cheaper fix than a sensor replacement.

There is a method for doing your own pixel mapping that some (myself included) swear by and others say is BS. I have used it on several cameras and I am convinced it works. You simply put the camera into manual cleaning mode with the lens cap or body cap on (you don't actually go in and do a cleaning) for at least 30 seconds. Do a before and after of a dark (cap on manual exposure) to see if it is working. My 7D had two red pixels on long exposures right out of the box. I ran this mapping two or three times and they are now gone. Good luck!

AlterHase · Feb 29, 2012

Two things that come to (my) mind in this context are:

Long expose noise reduction (C.Fn II-1). This might help with your long exposure situations. (Manual p.208)
Bad pixel mapping. I think this is different from the function that removes Dust Data (manual p.185ff) and it can only be done by Canon. Maybe someone else here can confirm.

kidcharles · Feb 29, 2012

isteka said:
Thanks for responses.

The reason is red dots - they appear after 1 second or more exposure and if I'm not mistaken it's dead pixels. I'm not sure any other way to get rid of them.

I doubt your sensor is malfunctioning, this sounds like you have "hot" (not "stuck" or "dead") pixels, which is typical of the 7D. My 7D is more prone to hot pixels than my 550D. Look into software solutions. Also, if you see these in RAW files, when you downsample to lower resolutions or convert to a lossy compression format (like JPEG) they will be much less noticeable because they get averaged out with the nearby pixels.

HamishStephenson · Mar 17, 2012

MonteCarlo67 said:
It does sound like a dead, hot or stuck pixel problem. All cameras will do this to some extent particularly with long exposures. If you shoot in RAW mode, then DPP or other programs like Adobe Photoshop, Elements and Lightroom will map them out automatically. Otherwise, you can contact Canon about having a pixel mapping done where they map out the bad pixels. I have heard of them even doing this for free out of warranty (minus shipping) but don't count on it. Either way, a trip to Canon for your camera might reveal a much cheaper fix than a sensor replacement.

There is a method for doing your own pixel mapping that some (myself included) swear by and others say is BS. I have used it on several cameras and I am convinced it works. You simply put the camera into manual cleaning mode with the lens cap or body cap on (you don't actually go in and do a cleaning) for at least 30 seconds. Do a before and after of a dark (cap on manual exposure) to see if it is working. My 7D had two red pixels on long exposures right out of the box. I ran this mapping two or three times and they are now gone. Good luck!

Thanks for your help but sadly I just tried it 3 times and had no luck. Did what you said just pressed clean sensor manually and then left it completely for 30 seconds and then turned it off.... but it didn't affect the dead pixel

Any other suggestions? How much would it cost for Canon to do pixel mapping (if you have any ideas)? I won't have warranty on it as I got it off Ebay was new but with no warranty.

Aussie Rod · Mar 19, 2012

solution: lightroom maps them out..

akin_t · Mar 19, 2012

Aussie Rod said:
solution: lightroom maps them out..

Not an elegant solution in my opinion.

Besides, what's to say OP incorporates Lightroom into his workflow?

Mark B. · Mar 19, 2012

akin_t said:
Aussie Rod said:

solution: lightroom maps them out..

Click to expand...

Not an elegant solution in my opinion.

Besides, what's to say OP incorporates Lightroom into his workflow?

It would be cheaper than paying for a sensor replacement.

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7D sensor

isteka

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