Help? What is this? - DPChallenge Forums

03/02/2013 03:37:31 PM · #1

All my photos have a missing pixel type spot in them.
Does anyone know what this is?

03/02/2013 03:43:25 PM · #2

Sure, it's a deal pixel.

Not all that uncommon, and you can easily deal with it during editing by simply just creating an action in PS that will use the healing tool to hit that spot, or by doing it manually.

You can do this in DPP with the "Dust Delete" function as well I think, although I've never tried that, and it may not work.

Essentially, it's no big deal, although understandably annoying as hell.

Message edited by author 2013-03-02 16:04:22.

03/02/2013 03:47:20 PM · #3

My camera still under warranty. Thank you.
Let see what canon will do.

Samsung Galaxy S21, S21+, S21 Ultra

03/02/2013 03:51:47 PM · #4

I believe that they will map them out for free, you'll just be on the hook for boxing it up and shipping it off. Expect to live without your body for a week or so.

Bear_Music

Sony 24-70mm F4 Vario-Tessar T* FE OSS

03/02/2013 03:52:47 PM · #5

In theory you can remap dead/hot pixels on a Canon by doing a forced "manual sensor cleaning" with a body cap on. There's no harm in trying:

How to remap a sensor

Also *in theory* if you shoot RAW the RAW conversion will take care of this dead pixel.

Basically what's going on is that the software's capable of interpolating to fill in dead pixels, just as if we were cloning them in photoshop.

Message edited by author 2013-03-02 15:53:35.

Alex_Petrini

Sony Alpha a7R III

Sony FE 24-70mm f/2.8 GM

03/02/2013 03:54:24 PM · #6

Originally posted by Cory:

Sure, it's a deal pixel.

Not all that uncommon, and you can easily deal with it during editing by simply just creating an action in PS that will use the healing tool to hit that spot, or by doing it manually.

You can do this in DPP with the "Dust Delete" function as well.

Essentially, it's no big deal, although understandably annoying as hell.

If you are shooting videos the problem is quite worse.

03/02/2013 03:55:12 PM · #7

good info to know.
Canon going to swap my camera with a different one.
Just got off the phone with them.

03/02/2013 04:01:32 PM · #8

Originally posted by Bear_Music:

In theory you can remap dead/hot pixels on a Canon by doing a forced "manual sensor cleaning" with a body cap on. There's no harm in trying:

Huh.. I didn't know that! Thanks Rob.

Essentially, you need to leave the body cap on, stay in a dim room (to avoid light leaks), and leave the manual cleaning active for at least 30 seconds, and preferably a full minute.

Also, if you have marginal pixels that aren't quite "dead enough", you can heat up the sensor using liveview for a couple of minutes before you go to the manual cleaning mode.

The only issue that I have with this for my purposes is that I manually clean the sensor so often that this would become a bit burdensome, although I think I'll try it anyway for a while.

Message edited by author 2013-03-02 16:02:26.

03/02/2013 04:05:15 PM · #9

Originally posted by Alexkc:

Originally posted by Cory:
Sure, it's a deal pixel.

Not all that uncommon, and you can easily deal with it during editing by simply just creating an action in PS that will use the healing tool to hit that spot, or by doing it manually.

You can do this in DPP with the "Dust Delete" function as well.

Essentially, it's no big deal, although understandably annoying as hell.

If you are shooting videos the problem is quite worse.

That was the reason I gave my Canon G9 to my Dad and bought the S95. Drove me absolutely batshit-crazy - although, in that case it was dust..

Message edited by author 2013-03-02 16:05:53.

bob350

Sony Alpha 1

Sony FE 24-70mm f/2.8 GM

03/02/2013 07:16:34 PM · #10

Originally posted by Cory:

... Expect to live without your body for a week or so.

Mitchamus: If you heed the wisdom of others, you may not need to endure a prolonged out of body experience.

mrchhas

Apple iPhone 15 Pro Max

03/02/2013 07:57:32 PM · #11

if it helps i did the manual clean and my dead pixel is gone.

Samsung Galaxy S21, S21+, S21 Ultra

03/02/2013 09:31:16 PM · #12

Originally posted by mrchhas:

if it helps i did the manual clean and my dead pixel is gone.

Verification is nice! Thanks.

Bear_Music

Sony 24-70mm F4 Vario-Tessar T* FE OSS

03/02/2013 09:38:45 PM · #13

Originally posted by mrchhas:

if it helps i did the manual clean and my dead pixel is gone.

Awesome!