Pixel Remapping?


soundsofsulphur

Link Posted 10/04/2009 - 10:47
I have a K100d DSLR and have shot a lot of live performance - dance / drama, so utilsing ISO 1600/3200 a lot without flash. I noticed for a while two 'stray' coloured pixels which were visible in the same place on the pictures. Then last week I shot a dance show from a balcony on my 50-200 lens(so quite a distance from the stage), this time there is about 12 stray pixels all various colours in the same places on all the shots!! I've gone on the forum and read about hot/dead/stuck pixels followed link to wikipedia. Anybody offer any advice what i can 'actually' do, in laymen terms!! Can I remap if so howdo I do it ? or is it a case of getting the local London Camera Exchange to have a look!!
Cheers in advance

Neil

johnriley

Link Posted 10/04/2009 - 11:14
With the images you have already shot, use the Clone Tool in Photoshop to remove the offending pixels.

I know you can do pixel mapping on the K20D, but I'm not sure about the K100D. You will get these effects more frequently with a warm sensor and in low light situations.
Best regards, John

scottthehat

Link Posted 10/04/2009 - 12:07
hi neil only on the k200 and k20 and km can pixel remap, the only way to get rid of the stuck or dead pixels is in software now, but you might find they free them selves at some point,
regards,

scott
just keep snapping,

http://www.pentaxphotogallery.com/scottbenson

http://s727.photobucket.com/albums/ww272/scottthehat/


CAMERAS = k200d + battery grip.
nikon d300 + battery grip.
LENSES = tamron aspherical DII 18-200mm f3.5/6.3,
nikon 18-200mm afs vr f3.5/5.6 g dx
sigma 150-500mm apo dg hsm os
sigma 170-500mm apo dg
FLASH = samsung sef36pzf flash + more.

soundsofsulphur

Link Posted 11/04/2009 - 16:26
Thanks for the comments and advice guys, much appreciated
Cheers
Neil

jps

Link Posted 16/04/2009 - 13:58
If you shoot in RAW then you shouldn't have so much of a problem, depending on which RAW converter you use. Silkypix automatically eliminates dead pixels, as do some (but not all) other RAW converters.

If you don't shoot RAW then this is a good reason to do so - it's worth at the very least downloading the free version of Silkypix to give it a go.

Jonathan

Rees

Link Posted 16/04/2009 - 18:59
Thanks for that jps I'll give "Silkypix" a go.
Not everything in life is Black & White, If only it were!
Kind Regards,
Rees
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