----- Original Message ----- From: "John Celio" Subject: Noisy New Year (blue channel noise issue)
> Welcome to 2007! > > *sigh* > > I hate to give fuel to the doomsayers and eternal pessimists (read: the > seeming majority of DPReview's forum users and a few guys here), but I > think > there's a problem with my K10D. I never saw long-exposure noise like this > in my *istD. > > Here are three versions of the same two-photo (10-second exposures) > stitch. > Granted, they're reduced in size and compressed, but if you look at them > in > photoshop or a browser with a non-white background, you'll see what I'm > talking about. > > Full color: http://www.neovenator.com/special/new_year_pano_color.jpg > Red channel: > http://www.neovenator.com/special/new_year_pano_red_channel.jpg > - very low noise, and the green channel is similar > Blue channel: > http://www.neovenator.com/special/new_year_pano_blue_channel.jpg > - it's so noisy, it looks like a photo in a newspaper printed with > rollers that were covered in dirt. Look at those streaks! It's horrible! > > Here's the right frame, which you can take into photoshop and see the > channels first-hand: > http://www.neovenator.com/special/new_year_pano_frame.jpg > > This is incredibly frustrating. It's a good thing I wasn't able to make > my > big nighttime pano this year, because the noise would be driving me > insane. > > My question is, should I wait for Pentax to release a firmware update and > see if that solves the problem, or call up Pentax this week and bug them > about it? > > Also, what's a good phone number for reaching Pentax (US)? I've noticed that complaints of excessive noise seem to be cropping up when exposure times hit the several second range. I suspect that it is a sensor problem and that we are stuck with it. I applied some pretty heavy noise reduction to the blue channel of the image you posted, and thought it was much improved for it. William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
