Speckles/hot pixels on my photos

[Seeker]

Hi Everyone, just want to seek advise about speckles appearing on my photos. Looks like hot pixels. Appeared few times, I'm a D70 user.

Is this a noise reduction failure, but I'm certain that its always "on" whenever I shoot @ night.

Just want to know if I'm missing some settings, or how to avoid this.

Thanx in advance.

[calebk]

Wow, your pic's kinda small. Ok, I see a lot of those speckles in the sky. At first I thought they were stars but they look too digital. Looks like hot pixels.

[Seeker]

ok here's a larger image its what came out from the camera.

this problem doesn't always happen thats why a bit confused.

how about fellow d70 user does this happen to your shots

thanks.

[slooow]

http://farm1.static.flickr.com/188/4...a76b0fe6_b.jpg

wa biang eh! i thought my screen got dead pixels!

very very long exposure is it?

[djork]

it looks like an exposure of 20-30 sec?

[gomobile]

Surly hot pixel, try turning on NR or something. i remember it sort of hids all the hot pixels.

[nikonrus]

try cleaning your ccd & lens first then see if this appears again.

[drumma]

wah piang eh! so many ar! what's ur setting like?

[Seeker]

Yes it is a long exposure shot 20plus seconds @ISO200, I also feel that it is a case of the NR failing to do its job properly. I've taken shot of these same scene 3 or 4 times to play around with my setting and only this one came out with this problem.This is why whould like to know if same case happens with others here. I keep my NR always "on"

BTW would like to know when/where to turn NR on or off, at what setting(shutter speed/aperture) is it effective because I find that it slows down the cam and eats a lot of battery life.

[hotweb]

sometimes there are tiny dust on your internal lens.

[hASHbrown_kopitiam]

wah... so many specks..... i tot they are stars ...

got send to NSC for checking?

If u dun know where to turn NR off, how you know your NR is on? It's in the Menu. IIRC, Tools(the one with the spanner).

[yyD70S]

Yours is almost certainly a dead/hot pixel. There's a program to confirm this:

http://www.photo-freeware.net/deadpixeltest.php

Not that it's any consolation but...

Good luck.

[Seeker]

Hi! thanks for the link on deadpixel test. Tried it @ 1/30, 1, 2, 5, 10, 20 and 30 sec. Didn't report any hot/dead pixel even if NR is turned off

[nikonrus]

Originally Posted by Seeker Yes it is a long exposure shot 20plus seconds @ISO200, I also feel that it is a case of the NR failing to do its job properly. I've taken shot of these same scene 3 or 4 times to play around with my setting and only this one came out with this problem.This is why whould like to know if same case happens with others here. I keep my NR always "on"

Sounds like a firmware issue here.

[calebk]

Originally Posted by hotweb sometimes there are tiny dust on your internal lens.

Nope. Dust in your lens doesn't show up because it's too near the image plane.

[erictjie]

my d200 have 1 hot pixel once, but now is gone after i shake it hard

[erictjie]

i think all dslr have dead or hot pixel problem unless we can find a softe\ware that can overide these pixels

[soldier]

nice shot though

[Leykid1634]

I love the street lamp in the middle that shine out rainbow colors. very natural.
not every shot got that effect right?

[calebk]

Originally Posted by Leykid1634 I love the street lamp in the middle that shine out rainbow colors. very natural. not every shot got that effect right?

Actually that "rainbow" is called lens flare.