That was my result too, from 1/30 through 2 sec no dead pixels, no hot pixels.
Bill ----- Original Message ----- From: "John Forbes" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, March 13, 2004 7:19 PM Subject: Re: *ist D Pixel Comparison Test > I tried out mine, following this thread. At speeds from 1/30 through to 4 > secs I got nothing, using TIFF (which is what they recommend). > > The lens was different, but that shouldn't matter! > > John > > > On Sun, 14 Mar 2004 07:39:50 +0800, Dr. Shaun Canning > <[EMAIL PROTECTED]> wrote: > > > Hi guys, > > > > Anyone willing too take part in a little experiment with your *ist D? I > > know how you guys all love comparing lenses and gear from > > time to time, so hopefully a few of you might help me out. > > > > I want to compare the number of recorded 'hot' pixels with other owners > > to see if the results I got from testing are normal or > > otherwise. It'll take about 3/4 of an hour to run the tests the same way > > I did. > > > > I used a little utility called 'Dead Pixel Test' which is available at > > http://www.starzen.com/imaging/deadpixeltest.htm > > > > I took a series of shots with the following set-up. > > > > 1. Lens cap on > > 2. Viewfinder cap on > > 3. Manual mode > > 4. Manual Focus > > 5. JPEG Highest Quality > > 6. F8.0 using FA 24mm (not that the lens should really matter) > > 7. Noise reduction On > > > > I took frames with shutter speeds ranging from 1/4000 down to 2 seconds > > (all speeds in between). I then used the Pentax Photo > > Browser to export a *.csv worksheet to work on in excel. Then I ran each > > frame through the test program, as per the instructions. I > > set the Luminance threshold to 60, and the Dead Pixel threshold to 100. > > > > Thankfully, I recorded no dead pixels, and the worst result was a total > > of 4 'hot' pixels at 1/8 and 1/6 sec. noise reduction does > > cut in at 1/4 sec, eliminating all 'hot' pixel occurrences from 1/4 too > > 2 secs. > > > > As other have pointed out, some of the images I uploaded yesterday > > definitely display hot-spots caused by these 'hot' pixels. What I > > am interested in is the results that anyone else may get to compare to > > my camera. > > > > Thanks in advance, > > > > Shaun > > > > Dr. Shaun Canning > > Cultural Heritage Services > > Lawrence Way, Karratha, > > Western Australia, 6714 > > Mob: 0414-967 644 > > > > [EMAIL PROTECTED] > > www.heritageservices.com.au > > > > > > > > -----Original Message----- > > From: Dr. Shaun Canning [mailto:[EMAIL PROTECTED] > > Sent: Sunday, 14 March 2004 6:37 AM > > To: [EMAIL PROTECTED] > > Subject: RE: *ist D Photos > > > > Thanks Mark. I would have liked the 'in flight' shot to be a bit > > sharper, but you know how fast these little buggers move. It was > > more luck than good management. I'm pretty happy with the overall > > performance of the *ist D though, even if I do have a couple of > > 'hot' pixels. > > > > Cheers > > > > Shaun > > > > Dr. Shaun Canning > > Cultural Heritage Services > > Lawrence Way, Karratha, > > Western Australia, 6714 > > Mob: 0414-967 644 > > > > [EMAIL PROTECTED] > > www.heritageservices.com.au > > > > > > > > -----Original Message----- > > From: Mark Cassino [mailto:[EMAIL PROTECTED] > > Sent: Sunday, 14 March 2004 2:54 AM > > To: [EMAIL PROTECTED] > > Subject: Re: *ist D Photos > > > > Cool photos, especially the dragonflies in flight. > > > > I was wondering how the *ist-D would do with bugs - looks great! (Mine > > arrived with the first snow, so no chance to test it on insects yet). > > > > - MCC > > > > At 12:41 PM 3/13/2004 +0800, you wrote: > > > >> Hi gang, > >> > >> Here are the results of my first foray into the bush with an *ist D. > >> all of > >> the shots were taken with the *ist D, battery grip, FA 100mm macro. All > >> were > >> handheld. Photoshop work was limited to sharpening and adjusting the > >> levels > >> a bit. > >> > >> The files are all in the 1-3 mb range, so be warned, they'll take a > >> while to > >> come down the pipe via a 56k modem. None of them are resized. > >> > >> http://www.heritageservices.com.au/Pentax%20ist%20D%20Photos/Web%20Gallery/i > >> ndex.htm > >> > >> Tell me what you think? > >> > >> Cheers > >> > >> Shaun > >> > >> Dr. Shaun Canning > >> Cultural Heritage Services > >> Lawrence Way, Karratha, > >> Western Australia, 6714 > >> Mob: 0414-967 644 > >> > >> [EMAIL PROTECTED] > >> www.heritageservices.com.au > > > > ----- > > > > Mark Cassino Photography > > > > Kalamazoo, MI > > > > http://www.markcassino.com > > > > ----- > > > > > > > > > > > > > > > > > > -- > Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/ > >
