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**KCFoggin** · Sunday 20th June 2004, 21:01

At least that is what I am assuming this tiny bright green spot is on the top of the pic. I know I can clone/crop it out. Just wanted to confirm that it is, in fact, a dead pixel.

alan_rymer · Sunday 20th June 2004, 21:07

It looks like the bird can see it too!.

Is it on other pics?.

**IanF** · Sunday 20th June 2004, 21:37

Looks like a stuck one to me. Yep! the Shrike has it spotted too

**KCFoggin** · Sunday 20th June 2004, 21:48

Thus my title "wish upon a dead pixel"

Yup! It's on all my pics in the exact same spot.

What's the difference between a stuck pixel and a dead pixel?

**IanF** · Sunday 20th June 2004, 21:55

Quote:

Originally Posted by KCFoggin

...................

What's the difference between a stuck pixel and a dead pixel?

Not a lot. Both have the same undesired effect only different colours, so I believe.

As you say simplest thing is to clone them out. On my Olympus C2100uz several appeared so I sent it back under warranty and got them all removed. I think they just map the sensor and those don't get used.

**KCFoggin** · Sunday 20th June 2004, 21:59

Ah! As it stands now, it is not too much of a concern for me. Particularly where it is located. Thanks for the explanation Ian.

RichUK · Sunday 20th June 2004, 22:07

You can, depending on the make and model of you camera, obtain software that can re-map pixels for you. I remember this from when I used to use my CP4500 for astrophotography. The extended periods of use together with the overall dark background showed up a couple of dead pixels I never knew were there.

However, it doesn't come risk free, so I quite quickly gave up on the idea.

Just letting you know that you may be able to re-map it yourself - if you're brave enough!

Rich.

**KCFoggin** · Sunday 20th June 2004, 22:13

Hi Richard!

I had found an article awhile back on remapping but, as you imply, it is not without risks and I think I can live with that speck for now.

Michael Frankis · Sunday 20th June 2004, 22:21

Does look like the shrike has seen it!

Here it is edited out (BTW, it was white, not green, when magnified)

Michael

**KCFoggin** · Sunday 20th June 2004, 22:41

Hmmm, I never tried enlarging it to see color difference Michael. Yeah, I thought the shrike was wishing upon it too

Mickymouse · Sunday 20th June 2004, 23:03

Bah. Just an excuse to post a rather nice pic 8-)

Mick

Michael Frankis · Sunday 20th June 2004, 23:50

Here it is much magnified - it seems to have affected the surrounding area a bit - note the sort of ring of reddish colour, and the pixelly stuff immediately above right

Michael

**KCFoggin** · Monday 21st June 2004, 00:13

Quote:

Originally Posted by BrianB

You can find more information at http://www.nikon.com.sg/TechSupp/KB/...dHotRandom.htm. There is also a piece of software you can download to test for this - http://www.starzen.com/imaging/deadpixeltest.htm (I haven't used this so don't know how well it works).

Thanks very much Brian. I have just bookmarked the site and will read it more thoroughly tonight.

**KCFoggin** · Monday 21st June 2004, 00:14

Quote:

Originally Posted by Mickymouse

Bah. Just an excuse to post a rather nice pic 8-)

Mick

Thanks Mick

**Larry Lade** · Monday 21st June 2004, 00:25

I do not know too much about the pixels and digitizing and .... but, nice photo of the Loggerhead Shrike!

**KCFoggin** · Monday 21st June 2004, 00:50

Quote:

Originally Posted by Larry Lade

I do not know too much about the pixels and digitizing and .... but, nice photo of the Loggerhead Shrike!

Thanks Larry. Today was a good day in the Shrike dept.

Sunday 20th June 2004, 21:01	#1
KCFoggin Super Moderator Join Date: Nov 2002 Location: Myrtle Beach SC "Smiling Faces, Beautiful Places" Posts: 46,340 My location	A wish upon a dead pixel At least that is what I am assuming this tiny bright green spot is on the top of the pic. I know I can clone/crop it out. Just wanted to confirm that it is, in fact, a dead pixel. Attached Thumbnails __________________ KC a/k/a common KC If I can't be a good example then I'll just have to be a horrible warning
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Sunday 20th June 2004, 21:07	#2
alan_rymer Registered User Join Date: Dec 2002 Location: Woodley, Berkshire Posts: 3,053	It looks like the bird can see it too!. Is it on other pics?. __________________ Alan Its not an optical illusion!. It just looks like it!.
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Sunday 20th June 2004, 21:37	#3
IanF Moderator Join Date: Aug 2002 Location: Billingham, NE England Posts: 40,105 My location	Looks like a stuck one to me. Yep! the Shrike has it spotted too __________________ IanF Durham Bird Club -- Teesmouth Bird Club---My local Patch - Cowpen Bewley Woodland Park---RSPB Saltholme
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Sunday 20th June 2004, 21:48	#4
KCFoggin Super Moderator Join Date: Nov 2002 Location: Myrtle Beach SC "Smiling Faces, Beautiful Places" Posts: 46,340 My location	Thus my title "wish upon a dead pixel" Yup! It's on all my pics in the exact same spot. What's the difference between a stuck pixel and a dead pixel? __________________ KC a/k/a common KC If I can't be a good example then I'll just have to be a horrible warning
	Click here to Support BirdForum

Sunday 20th June 2004, 21:59	#6
KCFoggin Super Moderator Join Date: Nov 2002 Location: Myrtle Beach SC "Smiling Faces, Beautiful Places" Posts: 46,340 My location	Ah! As it stands now, it is not too much of a concern for me. Particularly where it is located. Thanks for the explanation Ian. __________________ KC a/k/a common KC If I can't be a good example then I'll just have to be a horrible warning
	Click here to Support BirdForum

Sunday 20th June 2004, 22:07	#7
RichUK Flying Nerd Join Date: Sep 2003 Location: UK Posts: 516	You can, depending on the make and model of you camera, obtain software that can re-map pixels for you. I remember this from when I used to use my CP4500 for astrophotography. The extended periods of use together with the overall dark background showed up a couple of dead pixels I never knew were there. However, it doesn't come risk free, so I quite quickly gave up on the idea. Just letting you know that you may be able to re-map it yourself - if you're brave enough! Rich.
	Click here to Support BirdForum

Sunday 20th June 2004, 22:13	#8
KCFoggin Super Moderator Join Date: Nov 2002 Location: Myrtle Beach SC "Smiling Faces, Beautiful Places" Posts: 46,340 My location	Hi Richard! I had found an article awhile back on remapping but, as you imply, it is not without risks and I think I can live with that speck for now. __________________ KC a/k/a common KC If I can't be a good example then I'll just have to be a horrible warning
	Click here to Support BirdForum

Sunday 20th June 2004, 22:21	#9
Michael Frankis conehead Join Date: Apr 2003 Location: Newcastle, Northumberland, European Union Posts: 6,796	Does look like the shrike has seen it! Here it is edited out (BTW, it was white, not green, when magnified) Michael Attached Thumbnails

Sunday 20th June 2004, 22:41	#10
KCFoggin Super Moderator Join Date: Nov 2002 Location: Myrtle Beach SC "Smiling Faces, Beautiful Places" Posts: 46,340 My location	Hmmm, I never tried enlarging it to see color difference Michael. Yeah, I thought the shrike was wishing upon it too __________________ KC a/k/a common KC If I can't be a good example then I'll just have to be a horrible warning
	Click here to Support BirdForum

Sunday 20th June 2004, 23:03	#11
Mickymouse Ubuntu Linux user Join Date: Mar 2004 Location: Ramsgate, Kent Posts: 2,562 My location	Bah. Just an excuse to post a rather nice pic 8-) Mick
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Sunday 20th June 2004, 23:50	#12
Michael Frankis conehead Join Date: Apr 2003 Location: Newcastle, Northumberland, European Union Posts: 6,796	Here it is much magnified - it seems to have affected the surrounding area a bit - note the sort of ring of reddish colour, and the pixelly stuff immediately above right Michael Attached Thumbnails

Monday 21st June 2004, 00:25	#15
Larry Lade Moderator Join Date: Jul 2003 Location: Saint Joseph, Missouri, USA Posts: 8,118 Blog Entries: 3 My location	I do not know too much about the pixels and digitizing and .... but, nice photo of the Loggerhead Shrike! __________________ Larry
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