Hot Pixels

Westy wrote:
> Hi all,
>
> I have just noticed I have a couple of 'hot pixels' appearing on my
> images particularly when I take pictures at high ISO and slow shutter
> speeds.
>
> These show up as brightly lit pixels (white and blue) and are
> noticible only if they happen to be on a dark area of the image and
> even then only when viewed at high magnification.
>
> Just wondering what other peoples experiences of this are, and whether
> or not it is deemed 'acceptable' to have a couple of bad pixels (at
> the end of the day there are millions of good ones!). I am not
> impressed, and considering returning my camera for repair.
>
> Cheers
>
> Steve

Which camera?

--
Images (Plus Snaps & Grabs) by Mark² at:
www.pbase.com/markuson
 >> Stay informed about: Hot Pixels 

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 >> Stay informed about: Hot Pixels 

On Mon, 5 Mar 2007 16:20:44 -0800, "Mark²" <mjmorgan(lowest even
number here)@cox..net> wrote:

>Westy wrote:
>> Hi all,
>>
>> I have just noticed I have a couple of 'hot pixels' appearing on my
>> images particularly when I take pictures at high ISO and slow shutter
>> speeds.
>>
>> These show up as brightly lit pixels (white and blue) and are
>> noticible only if they happen to be on a dark area of the image and
>> even then only when viewed at high magnification.
>>
>> Just wondering what other peoples experiences of this are, and whether
>> or not it is deemed 'acceptable' to have a couple of bad pixels (at
>> the end of the day there are millions of good ones!). I am not
>> impressed, and considering returning my camera for repair.
>>
>> Cheers
>>
>> Steve
>
>Which camera?

It's a D200. It's only a month old.

I have been using a D70 for the last 3 or so years and have never had
a problem.

I was trying to recreate it again last night using the same settings
i.e. ISO 800 and exposures of around 1/10th but the one bright blue
pixel I was getting earlier in the week is now no longer there?
Explain that!

The white 5 pixel 'cross' is still there. I have tried different
lenses and it is always there.

So - it seems to be just one hot white one at the moment. I'm annoyed
but inclined to try and live with it I am aware that if I get the
camera replaced I may end up with a worse example.
 >> Stay informed about: Hot Pixels 

On Mon, 05 Mar 2007 19:33:40 -0500, "Ed Ruf (REPLY to E-MAIL IN
SIG!)" <egruf_usenet2.RemoveThis@cox.net> wrote:

>On Mon, 05 Mar 2007 21:30:16 +0000, in rec.photo.digital Westy
><noone.RemoveThis@nowhere.co.uk> wrote:
>
>>Hi all,
>>
>>I have just noticed I have a couple of 'hot pixels' appearing on my
>>images particularly when I take pictures at high ISO and slow shutter
>>speeds.
>>
>>These show up as brightly lit pixels (white and blue) and are
>>noticible only if they happen to be on a dark area of the image and
>>even then only when viewed at high magnification.
>>
>>Just wondering what other peoples experiences of this are, and whether
>>or not it is deemed 'acceptable' to have a couple of bad pixels (at
>>the end of the day there are millions of good ones!). I am not
>>impressed, and considering returning my camera for repair.
>
>What camera and are you shooting raw or jpeg? How often does this effect
>you images? If not very often you might consider just editing those pixels
>out by cloning nearby pixels. You do understand the fix will be just to
>remap those pixels in the cameras firmware, effectively using the cloning
>technique,, and not fixing the pixels or replacing the sensor.

It's a D200 and I have been shooting fine jpeg. It will rarely affect
my images - I rarely shoot high ISO and dark subject etc. but that's
not the point - I have just spent a lot of cash and my camera is
flawed - I am not happy - but is it realistic to expect the camera to
be 'perfect' is the question.

reading all the forums etc. I have seen many different views. Some
people say live with it - they all have some dead/hot pixels. Others
say - get it replaced - it should be perfect - don't stand for
anything less.

I'm just looking for more opinion before I decide whether to send it
in, or put up with it and as you suggest just touch up any affected
images.
 >> Stay informed about: Hot Pixels 

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 >> Stay informed about: Hot Pixels 

Westy wrote:
>
> On Mon, 05 Mar 2007 19:33:40 -0500, "Ed Ruf (REPLY to E-MAIL IN
> SIG!)" <egruf_usenet2.DeleteThis@cox.net> wrote:

<edited, for brevity>

> >What camera and are you shooting raw or jpeg? How often does this effect
> >you images? If not very often you might consider just editing those pixels
> >out by cloning nearby pixels. You do understand the fix will be just to
> >remap those pixels in the cameras firmware, effectively using the cloning
> >technique,, and not fixing the pixels or replacing the sensor.
>
> It's a D200 and I have been shooting fine jpeg. It will rarely affect
> my images - I rarely shoot high ISO and dark subject etc. but that's
> not the point - I have just spent a lot of cash and my camera is
> flawed - I am not happy - but is it realistic to expect the camera to
> be 'perfect' is the question.
>
> reading all the forums etc. I have seen many different views. Some
> people say live with it - they all have some dead/hot pixels. Others
> say - get it replaced - it should be perfect - don't stand for
> anything less.
>
> I'm just looking for more opinion before I decide whether to send it
> in, or put up with it and as you suggest just touch up any affected
> images.


Hello, Westy:

My Kodak P850 "super zoom" digicam has the same issue. It's still under
warranty, but I fear that Kodak may not adequately correct the problem
(they could even compound it, perhaps), or might replace my particular
unit with a worse one.


Cordially,
John Turco <jtur.DeleteThis@concentric.net>
 >> Stay informed about: Hot Pixels 

On Tue, 06 Mar 2007 20:22:46 -0500, "Ed Ruf (REPLY to E-MAIL IN
SIG!)" <egruf_usenet2.DeleteThis@cox.net> wrote:

>On Tue, 06 Mar 2007 20:28:43 +0000, in rec.photo.digital Westy
><whiteroseofyorkshire.DeleteThis@postmaster.co.uk> wrote:
>
>>On Mon, 05 Mar 2007 19:33:40 -0500, "Ed Ruf (REPLY to E-MAIL IN
>>SIG!)" <egruf_usenet2.DeleteThis@cox.net> wrote:
>>
>>>On Mon, 05 Mar 2007 21:30:16 +0000, in rec.photo.digital Westy
>>><noone.DeleteThis@nowhere.co.uk> wrote:
>>>
>>>>Hi all,
>>>>
>>>>I have just noticed I have a couple of 'hot pixels' appearing on my
>>>>images particularly when I take pictures at high ISO and slow shutter
>>>>speeds.
>>>>
>>>>These show up as brightly lit pixels (white and blue) and are
>>>>noticible only if they happen to be on a dark area of the image and
>>>>even then only when viewed at high magnification.
>>>>
>>>>Just wondering what other peoples experiences of this are, and whether
>>>>or not it is deemed 'acceptable' to have a couple of bad pixels (at
>>>>the end of the day there are millions of good ones!). I am not
>>>>impressed, and considering returning my camera for repair.
>>>
>>>What camera and are you shooting raw or jpeg? How often does this effect
>>>you images? If not very often you might consider just editing those pixels
>>>out by cloning nearby pixels. You do understand the fix will be just to
>>>remap those pixels in the cameras firmware, effectively using the cloning
>>>technique,, and not fixing the pixels or replacing the sensor.
>>
>>It's a D200 and I have been shooting fine jpeg. It will rarely affect
>>my images - I rarely shoot high ISO and dark subject etc. but that's
>>not the point - I have just spent a lot of cash and my camera is
>>flawed - I am not happy - but is it realistic to expect the camera to
>>be 'perfect' is the question.
>
>No.
>
>>
>>reading all the forums etc. I have seen many different views. Some
>>people say live with it - they all have some dead/hot pixels. Others
>>say - get it replaced - it should be perfect - don't stand for
>>anything less.
>>
>>I'm just looking for more opinion before I decide whether to send it
>>in, or put up with it and as you suggest just touch up any affected
>>images.
>
>Sounds like a condition you need to use at least one of the D200s noise
>reduction functions for. Have you investigated those? And yes I shoot with
>a now 1+ year old D200.

Does your D200 have 'issues' with hot pixels then?
 >> Stay informed about: Hot Pixels 

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