>From: Joseph Tainter <[EMAIL PROTECTED]> > >I like the grip. As for the whole VPN being caused by the grip thing, >it's a load of BS. I've had it occur with & without the grip. > >----- > >This hasn't been discussed in a while. The sensor (or the sensor plus >the Nucore A/D converter) apparently produce vertical pattern noise in >all sensors, but only a few people find it noticeable, and only at high >ISO. But it is there. I've seen apparently clean images dissected to >show that, indeed, VPN is present, just not noticeable. > >The grip apparently produces (or can produce) a different problem, >called horizontal pattern noise. I'm not a grip user so I have no >experience with it. Again, though, this doesn't seem to affect everyone, >or at least not everyone notices it. I haven't seen posts on it in a >while. I don't think it has been established whether every sample of the >grip produces this, but most often unnoticeably, or whether only a few >do so. > >So the patterned noise business is a matter of luck--if you are unlucky >your sample of the gear may show it to a noticeable degee. If you are >lucky you won't see it. > >Joe >
Technical aspects aside, as with photography in general, if VPN or HPN is present, and if it's noticed, probably often depends on how one 'sees', i.e., is the photographer looking at their work with a critical eye or are they blushingly viewing it with self-adoration? If the latter, they might not notice. If the former, they may indeed. Tom C. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
