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Photography Check your camera sensor for HOT/DEAD pixels, ooooo....nasty....

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calvin_gsc
post Aug 1 2007, 03:27 PM

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Here's mine. I never notice any.

Help double check pls.

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calvin_gsc
post Aug 1 2007, 08:37 PM

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QUOTE(wlcling @ Aug 1 2007, 03:35 PM)
saw a few at the bottom region.. but i'm not too sure...
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yeah, zoom in edi, can see quite a few.


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_gsc
post Aug 1 2007, 10:58 PM

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QUOTE(AlamakLor @ Aug 1 2007, 10:30 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 sad.gif
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Actually, how often is one gonna take a photo with ISO3200 and 10 seconds exposure and with NO NR at all? hmm.gif
calvin_gsc
post Aug 1 2007, 11:14 PM

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QUOTE(aichiban @ Aug 1 2007, 11:05 PM)
alamaks....my warranty over dee cry.gif
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Dont worry lor.

What are the settings u normally use for your photo?

Got ISO3200 often? and 10seconds exposure? no NR?
calvin_gsc
post Aug 2 2007, 11:27 AM

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QUOTE(scotty @ Aug 2 2007, 02:58 AM)
mine got over 20 dots sad.gif

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hahahahah. just joking smile.gif
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At 800x600, you wont be able to see any hot pixels.

I took my larger sized picture with significant hot pixels and resized it to 800x600, and I can't find any hot pixels also.

see for yourself

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Maybe you should upload a picture with higher resolution with at least 3MP.

And I also noticed, your shot above with a D200 has so much less noise!
calvin_gsc
post Aug 2 2007, 09:42 PM

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QUOTE(bbtat @ Aug 2 2007, 07:58 PM)
grey color and green color .. is also a dead pixels? Omg... i have so many leh H!H!HH! HELP !  blink.gif  blink.gif  blink.gif  blink.gif i already circled it out .. just need help to double check. Thank you

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May I know how old is your camera?
calvin_gsc
post Aug 3 2007, 12:03 AM

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QUOTE(jolipoli81 @ Aug 2 2007, 11:56 PM)
wow, i didnt know about this....
but if my lcd got dead pixels also, then very hard to see?
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If you know particular part of your lcd got dead pixel, look for other part of the screen lor.
calvin_gsc
post Aug 3 2007, 08:55 PM

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QUOTE(bbtat @ Aug 3 2007, 08:47 PM)
Erm
2 months old. .. omg.. what happen.. u help me to checkeeD?
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Well, I wouldn't want to scare you or anything.

Maybe can bring to Nikon for checkup and tell them about it.

Get it fixed asap lor.
calvin_gsc
post Aug 3 2007, 09:48 PM

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QUOTE(bbtat @ Aug 3 2007, 09:05 PM)
green and white.. and the red and blue .. all is dead pixels? or it is just a dust? Ermmm .. i m so scare !
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they're not dead pixels, apparently hot pixels. can be fixed. Dust is not colored.
calvin_gsc
post Aug 4 2007, 04:51 PM

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QUOTE(kelvinyam @ Aug 4 2007, 10:51 AM)
This is mine, S3IS, 10sec, iso80

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ISO80 wor, of course nothing lar. doh.gif doh.gif doh.gif

 

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