Re: *ist D

[Robert Gonzalez]

But that may be a different function for cleaning the sensor of any 
dust, not hot pixels.  At least that's what I've heard.

rg

Bill Owens wrote:
IIRC the *ist D has a "clean" function in the menu.

Bill

----- Original Message ----- 
From: "Chris Brogden" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, September 28, 2003 7:07 PM
Subject: Re: *ist D



I think many DSLRs have something like this built in.  You can "clean" the
sensor through a menu option, and I believe the camera maps the sensor to
find dead or hot pixels, and then interpolates around them.
chris

On Sun, 28 Sep 2003, Robert Gonzalez wrote:


I bet a simple program could be written to take a hot pixel file (1s
exposure with the cap on) and use it to interpolate around the hot
pixels, thus cleaning up the image.  It would be easy to do with RAW, a
little harder to do with JPEG.
rg

William Robb wrote:

----- Original Message -----
From: "Cotty"
Subject: Re: *ist D



On 27/9/03, [EMAIL PROTECTED] disgorged:



Gads, my 6mp camera has 2 hot pixels. My 3.2 mp camera has 3. I can

only

imagine how many there would be on a medium format sensor.....
At the risk of sounding dumb, how does one spot a hot pixel on a DSLR?


They stick out like a sore thumb if they happen to fall in a dark

area. The

really bad one on my camera is bright purple, and very visible.
On my G1, I had a bright red one, and I believe one was green. I know

there

is a third on it, but I don't recall what colour it is.

William Robb