Thanks for the explanation, Matthew! In a subsequent test, photographing the inside of lens caps, I noticed that the 645D has more streaks than has the K-5. Completely in line with your comparison of telescopes to DSLRs.
It's fun when unexpected explanations turn out to be right! :-) Cheers, Jostein 2011/11/22 AlunFoto <[email protected]>: > Gang, > Revisiting my recently posted Runde GESO, I found that the shots with > longer exposure times showed some very bright pixels in areas where > there shouldn't be any. And they weren't just single pixels either. > Sometimes streaks, sometimes little doodles looking like luminiscent > dust. After two days of research, as in Google (re)search, I think > I've nailed it down to cosmic rays hitting the sensor. I feel > confident enough about this explanation to have blogged about it, but > I am a bit skeptical still. I'd therefore appreciate it very much if > any of you guys have a, literally speaking, down to earth explanation. > > I must refer you to my blog once again, at least for image examples: > http://alunfoto.blogspot.com/2011/11/spurious-noise.html > > > Thanks, > Jostein > > -- > http://www.alunfoto.no/galleri/ > http://alunfoto.blogspot.com > -- http://www.alunfoto.no/galleri/ http://alunfoto.blogspot.com -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

