Hot pixels : should I ask for a new camera?

[Lovin]

I have 3 or 4 hot pixels that I can see them on every long exposure image in the dark.
Should I ask for a new camera or send it to service for this?
After I google this subject, I find out that in the end all the cameras has it, so it's not worth t to ask for a replacement, because the new one will have it too sooner or later.

What do you advice me ?

Thank you,
Lovin

[Wicked Dark]

How old is your camera? Is this covered under warranty? How long can you be without one? Only you can tell, but if it were me and the answers were a few months or weeks, yes and I have a back up, I'd sent it for repair or replacement.

[Mad Aussie]

Hot pixels? We are talking about the LCD right?

If so, then they are probably right in saying most will this issue. Monitors are often the same. However, if it's under warranty I'd take it in and at least ask the question.

[Lovin]

The camera is brand new, just couple of months old, so is still under warranty. I don't know how long will take at service to send me back fixed, or a new one.

MA : I'm talking about hot pixels (dead pixels) on sensor.
When I'm taking some shots with long exposure in the dark, on every image, I see 5 pixels (blue, red, yellow or even white) in the same place, same colors every single time.

So... five pixels isn't too much for a brand new camera?

[Mad Aussie]

I'm no good to you then because I've never heard of this. And after owning several DSLR's have never noticed it if it existed on my cameras.
I'd be going back to the shop and bitching like a teenager when the power goes out for 5 mins!!!

[Barefoot]

It's an issue that can (but not necessarily will) rear its ugly head with all makes and models when shooting long exposures. The general consensus is that it is a heat issue and will only get worse over time. Makes me wonder what the effects of shooting live video has on the sensors and for that reason, I've never placed my D90 0r D300S in video mode.

[Lovin]

I don't know. I never tried video in low light, but I'm guessing that is not that visible as in pictures.
I'm sending my camera for service, hoping that will not take more than a month.

[Barefoot]

I don't know. I never tried video in low light, but I'm guessing that is not that visible as in pictures.
I'm sending my camera for service, hoping that will not take more than a month.

I wasn't really talking about "low light video". I guess what I was trying to illustrate is that video usually involves the capture of several minutes of footage and that makes it much like long exposure photography in that the sensor is subject to heat build-up.

Not something I can prove, mind you, but that's my story and I'm sticking to it. :twocents:

[Fusion]

All sensors have a small number of dead pixels its a fact not a fault. Will generally only show as described in long night exposures. I have seen the same on my 1D series cameras.

What makes them visible
First of all they are tiny, for that reason they are not visible enough most of the time
High f values (narrowed aperture) (F 20)
High ISOs (ISO 1600)
Low-Light environment, night etc. (They are visible especially on darker backgrounds)
Long Exposure Times (30 sec.)

Live with them and if necessary edit them out in PS...:thumbup:

http://www.kenrockwell.com/tech/hot-pixels/index.htm

[Lovin]

Thanks Fusion.
I'll try to contact Canon Service tomorrow morning to see of it's worth to spend money sending the camera to them.

[Fusion]

Its not something I would be overly worried about unless there are hundreds of them.... would be interested to hear what Canon Service says...:thumbup:

[Greg_Nuspel]

This is a noise problem found with long exposures, some cameras have an option that will allow you to take a dark frame and then it will subtract the noise from the image. Astrophotographers have elaborate ways of doing this. They also cool their chips to reduce this. Most likely you will be told this is normal.

[Lovin]

I talked with somebody from Canon Service, and he told me that is not normal, and to send in the camera.
I just sent it, and I'll have a new sensor.

[Fusion]

I talked with somebody from Canon Service, and he told me that is not normal, and to send in the camera.
I just sent it, and I'll have a new sensor.

Unusual, but good luck !!

[Lovin]

Maybe, they're trying to have more things to do there, to be busy, to justify her presence there ? :)

[Fusion]

Who knows but if they are going to give you a new sensor and you can live without the camera for however long it takes good for you, but all reports I have read is that this is not abnormal....