Welcome, Guest.
CLICK HERE TO REGISTER


Welcome to BirdForum.
BirdForum is the net's largest birding community, dedicated to wild birds and birding, and is absolutely FREE! You are most welcome to register for an account, which allows you to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply
 
Thread Tools Rate Thread
Old Wednesday 28th January 2004, 01:48   #1
Frosty
Registered User

 
Join Date: Jan 2004
Location: Nottinghamshire
Posts: 17
A bit of advice please - CP4500

I have just bought a CP4500 - my first digital camera, and noticed the same re-occuring blue/green spot on all photos. After a little web-surfing I came across the term 'stuck-pixel'. I will be speaking to the retailer and Nikon but would like some expert advice on how many pixels you think are 'stuck'. I looked through some threads on this site and carried out a shot at 1/60 with Lens cap on and saved in TIFF format. I have also attached a crop of what the spot looks like in a photo.

Thanks for any advice offered.

Regards

Gary
Attached Thumbnails
Click image for larger version

Name:	DSCN0343 copy.jpg
Views:	175
Size:	30.8 KB
ID:	5205  
Attached Images
File Type: bmp cropDSCN0906.bmp (16.0 KB, 106 views)

Frosty is offline  
Reply With Quote
Old Wednesday 28th January 2004, 07:54   #2
IanF
Moderator
 
IanF's Avatar

 
Join Date: Aug 2002
Location: Billingham, NE England
Posts: 40,072
Yep, it looks stuck to me. Not bad if that's the only one. Same thing happened with my Olympus C2100UZ after a while, seven in all so I sent it off to Olympus just before the warranty ran out and they put it right and gave the camera a geneal overhaul. Just the one I probably wouldn't bother as they're easy to deal with in PS / PSP etc. If it's under guarantee then I think they should repair it free of charge but ring them before you send it off to confirm. If it's not under warrantee then I guess I wouldn't bother as it costs quite a it to have it put right.
IanF is offline  
Reply With Quote
BF Supporter BF Supporter 2004 BF Supporter 2005 BF Supporter 2006 BF Supporter 2007 BF Supporter 2008 BF Supporter 2009
Click here to Support BirdForum
Old Wednesday 28th January 2004, 07:56   #3
Jay Turberville
Registered User

 
Join Date: Aug 2003
Location: Fountain Hills, AZ
Posts: 409
Quote:
Originally Posted by Frosty
I have just bought a CP4500 - my first digital camera, and noticed the same re-occuring blue/green spot on all photos. After a little web-surfing I came across the term 'stuck-pixel'. I will be speaking to the retailer and Nikon but would like some expert advice on how many pixels you think are 'stuck'.
No expert advice here, but my CP5000 has the same problem. It really irritated me when I first got the camera. One option was to take it back to the dealer and return it for a replacement. That kind of left open the possibility that they would send it in for "repair". My web research lead me to think that they would simply "remap" the bad pixel. In fact, I strongly suspect that all digital cameras have hot pixels that are simply remapped before the camera is shipped.

The other option was to live with the flaw - which is what I chose to do. I guess my years of spotting B&W photos made me a bit tollerant. Any image of importance goes into Photoshop and it is extremely easy to simply clone stamp out the hot pixel. When images are resized for the web, the pixel usually disappears. It is usually very much hidden in about half the images anyway.

I even used the hot pixel to better understand how sharpening affects fine detail.
http://www.jayandwanda.com/digiscope/hotpixelsharp.jpg

Not that the hot pixel is actually 4 hot pixels. I'm assuming that this represents one CMYG square on the CCD.

There is software on the web that I can send to you that will let you remap the bad pixel. Many have used it successfully. I chose not to apply this "hack" to my camera though. Clone stamping is just too easy and much safer.
__________________
Jay Turberville
www.jayandwanda.com
Jay Turberville is offline  
Reply With Quote
Old Friday 30th January 2004, 22:50   #4
Ragna
Registered User
 
Ragna's Avatar

 
Join Date: Jan 2003
Location: Ashtead, Surrey
Posts: 2,055
Had a dead pixel on my 4500 took it back to Nikon HQ as its local they remaped took about a month.Wish i had'nt bothered. Got Another one now, so i'd just forget it an clone it out in photoshop.
__________________
graham
Ragna is offline  
Reply With Quote
Advertisement
Reply


Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
beginner with brand new toys needing advice !! Tony Knight Andy Bright's Digiscoping Forum 10 Tuesday 31st August 2004 14:47
Canon EOS lenses with Nikon cp4500? davidfree Andy Bright's Digiscoping Forum 8 Sunday 2nd November 2003 07:25
Thanks for advice... iebirdie Binoculars 1 Wednesday 22nd October 2003 20:09
Digiscoping, advice please pauliev69 Digiscoping cameras 9 Wednesday 10th September 2003 18:24
Nikon CP4500 discontinued? Dave Smith Nikon 24 Tuesday 5th August 2003 00:19

{googleads}
Search the net with ask.com
Help support BirdForum
Ask.com and get

Page generated in 0.14042592 seconds with 15 queries
All times are GMT +1. The time now is 05:45.