I did quick trials and it seems my K10D will not do DFS in B mode at 30 seconds exposure.
On Sat, Aug 1, 2009 at 8:56 PM, Joseph McAllister<pentax...@mac.com> wrote: > The K100, K10, and K20 (and I assume K-7) all have a special function (each > a different number) to turn "Noise Reduction" 'ON', but not really off, just > changing under what circumstances it is used. The K20 may be the exception, > (and maybe the K-7) as it allows NR to be turned OFF when shooting "in > high-sensitivity settings". But none of the manuals go into specifics except > the K20, which defines 'slow speed shooting' as longer than 3/10 of a > second. > > > On Aug 1, 2009, at 09:07 , John Sessoms wrote: > >> From: Miserere >>> >>> 2009/7/31 John Sessoms <jsessoms...@nc.rr.com>: >>>> >>>> > From: "P. J. Alling" >>>>> >>>>> >> >>>>> >> The camera automatically does a dark frame hot pixel noise reduction >>>>> >> on >>>>> >> long time duration images. ?The dark frame is produced right after >>>>> >> the long >>>>> >> exposure for the same amount of time to approximate the hot pixels >>>>> >> that will >>>>> >> light up from the heat build up from the sensor being continuously >>>>> >> powered >>>>> >> up. ?So what happens is the exposure takes roughly twice as long. >>>>> >> ?1/2 of >>>>> >> which is after the actual exposure is finished... >>>> >>>> > >>>> > The K10D didn't do that. Did the K20D? Could it be turned off if it >>>> > did? >>> >>> John, I have a K10D and it does do dark frame subtraction on long >>> exposures. Or you can turn it off, like I did on the 4th of July to >>> photograph the fireworks. >>> Did you mean something else and I didn't understand you correctly? >>> Please elaborate! :-) >> >> I've never noticed it with the K10D. But if it can be turned off, I may >> perhaps have turned it off without realizing that's what it was. >> >> Or perhaps, I didn't notice it enough to recognize it. >> >> I'll have to get the manual out again. > > Joseph McAllister > pentax...@mac.com > > "Gaudeamus igitur, juvenes dum sumus..." > http://tinyurl.com/ndmfhb > > > > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. > -- Thibault Massart aka Thibouille ---------------------- Photo: K10D,Z1,SuperA,KX,MX, P30t and KR-10x ;) ... Thinkpad: X23+UB,X60+UB Programing: D7 user (trying out D2007) -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
