But Frits is reporting hot pixels with in-camera NR on when creating Tiffs but not when creating RAW and converting in CS. This would suggest that the NR in Photoshop is doing something better than the dark frame subtraction.
I must admit I am slightly puzzled - I thought the in-camera NR (dark frame subtraction) was supposed to get rid of ALL hot pixels by removing any hot pixels in the dark frame from the resultant picture, presumably interpolating a best guess of what should be there. So why do you get ANY hot pixels with NR on? When I did the tests a while back, I seem to recall seeing quite a lot with NR off and absolutely none with it on. I have always shot with NR on and see no purpose for me in doing otherwise. I am not a speed junkie (as far as cameras are concerned anyway) so NR has absolutely no downside that I can think of for me. > -----Original Message----- > From: Herb Chong [mailto:[EMAIL PROTECTED] > Sent: 15 March 2004 11:42 > To: [EMAIL PROTECTED] > Subject: Re: *ist D Pixel Comparison Test > > > the RAW converter is doing noise reduction. turn on Advanced > mode and look at all of the noise reduction settings. > > Herb.... > ----- Original Message ----- > From: "Frits Wüthrich" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, March 15, 2004 5:44 AM > Subject: RE: *ist D Pixel Comparison Test > > > > I also want to understand why I don't get any hot pixels when I use > > the Photoshop CS raw converter and create a tiff file that way. > > Perhaps I need to tweak the settings. > > >
