Refer to post #3 directly, ignore the following crap...


This post has been edited by AlamakLor: Aug 1 2007, 01:55 PM

oh man... you're scaring me

I found a few on my new camera, I'm contemplating sending it in to get the pixels remapped.

Ignore the first post and use this guide to test the sensor:

1) Set iso to highest sensitivity possible (H1.0 on D200)
2) Set to shutter priority, set shutter to 10s (more than enough..unless u really wanna do 30sec )
3) Set camera to manual focus, leave the lens cap on
4) Turn off ALL noise reduction, both high iso & long exposure NR
5) Set QUAL to Fine jpeg
6) Cover the viewfinder with ur hand and FIRE AWAY!

look at the black picture, if u have stuck/dead/hot pixels, u'd see them easily, they appear as a normal R/G/B/white dot...sometimes in a + sign.

If you want to find out starting from what ISO the crapped pixels manifest, do the same shot and slowly lower the iso. Mine start showing @ iso800.

I was reading A100 review on dpreview....apparently same case with sony....why am i not surprised....sony sensor...

OT a bit. a new cam? d200 ah? wah lao rich fellow

D200? in my wish list lar.....using D40 like you only...had to downgrade from D50. Checked the D50 I sold, that one had perfect sensor....well probably mapped out la

can view the dead pixels through the cam's lcd itself or need the software you posted?

u dont need any software, just take the test picture, then look at it on ur pc. Upload it here so that I can double check for you too

ok... i see those things you're mentioning about... hmmm

wait for my upload

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Added on August 1, 2007, 1:20 pm

counted 4 of em little buggers....

This post has been edited by wlcling: Aug 1 2007, 01:20 PM

yeah I found 4 on yours (circled):

But your sensor seems to have lots of dusts.....might wanna check that too.

This is mine:


Try to use 30sec exposure and see if you can find more. If your cam still has warranty, drop it off nikon service centre and get them remapped.

This post has been edited by AlamakLor: Aug 1 2007, 01:44 PM

4 seems to be the common number!....

u mean those grey specks are dust... i thought that was long exposure noise... lol

yah... still has warranty.... i'll get it cleaned at the same time too.... thks mate...

This post has been edited by wlcling: Aug 1 2007, 01:47 PM

hell yeah they are dusts....lots and lots of them...u see any in my pix? lol
when u drop the cam in, they will clean eveything, just tell them you need "defective pixel remapping & sensor dust cleaning" check it before warranty expires too, they are like monitor pixels, can die or go faulty with more usage.

I found program leaked from nikon where u can diy remapping pixel but its only good for D100

This post has been edited by AlamakLor: Aug 1 2007, 01:59 PM

i almost wonder if you change lenses in a vacuum...

I never change lens in public, and when i change lens...i do it quickly 1

1) prepare lens to be changed
2) remove rear cover
3) unmount lens
4) blow the camera chamber with blower kau kau
5) blow lens rear element kau kau
6) lock!

i havent seen a single speck of dust in my sensor both old D50 and new D40

alamak , yours got 5

Champion mar not a good thing to be proud of

i'll check my d40 also. maybe mine got more le.

Here's mine. I never notice any.

Help double check pls.

saw a few at the bottom region.. but i'm not too sure...

yeah, zoom in edi, can see quite a few.

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Added on August 1, 2007, 8:48 pmHmm, my cam so new also got a lot quite a few hot pixels.

Should I fix it asap?

Would the problem come back again?

Should I even panic or get worried?

Is this problem common amongst DSLR?

I have zoomed in and circled whatever i can find.

Quite shocking!

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Added on August 1, 2007, 9:54 pmActually hor, I have done a few more tests.

With ISO NR and Long Exposure NR, no hot/dead pixels can be seen at ISO400 and ISO3200.

Even Without ISO NR and Long Exposure NR, no hot/dead pixels can be seen at ISO400 photo.

So, actually if we print out photo, nothing to worry also right?

This post has been edited by calvin_gsc: Aug 1 2007, 09:54 PM

Calvin, send it it, there's too many of them. Don't count on the noise reduction to "fix" the problem, some of mine can't be fixed even with nr on. I called nikon and they say of there's over 20 dead.hot pixels, they will replace the sensor and remap the new one.

I'm gonna send mine in, and gonna be 3 weeks without camera