Just remapped 5700's CCD.....

Started Oct 15, 2003 | Discussions thread
GaryM Contributing Member • Posts: 930
Re: Just remapped 5700's CCD.....

Jesse: I remapped my 5700 about 2 weeks ago after thorough
research, etc. My understanding is that the camera takes a
5-sec "dark frame" (just like it does when you have Noise Reduction
turned on) and then maps the 512 brightest pixels into the CCD
DEFECT table. So it doesn't matter if the lens cap is off or on
at that point. If you want to test your camera for hot pixels, you
should put the lens cap on unless your are in a perfectly dark environment
with no light to enter the camera. Then you want to turn camera
processing off (sharpening, etc.) and shoot in TIFF mode at highest
resolution at noise prone shutter speeds, ie. 4 sec, 2 sec, 1 sec, 1/2 sec

mrhooks wrote:

I remapped my 5700 last night (camera is only 2 months old, but I'm
too impatient to send my camera to Nikon). The one visible hot
pixel I had was gone as far as I can tell (I didn't know enough to
use a program to read a lens cap shot).

I sort of jumped the gun about using this program, and didn't do as
much reading online as I should have (it was 12:30am and I needed
to go to bed, but I stayed up anyways). When the remapping
programs makes the camera take a photo, was I supposed to leave the
lens cap on for it? I don't remember the program mentioning that
anywhere, nor does the programmer's web page. I forgot to put the
lens cap back on for that shot (I have it tied to the camera strap
ring, and don't want to accidentally snag it and mess up the
telescoping lens mechanism), and I'm hoping that I didn't cause the
camera to do a weird read off of the pic it took, and remap pixels
that didn't need remapping.

I took a couple of test shots, with the lens cap on and off, and so
far it looks great. But I just wanted to be sure.


Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow