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...
David J Brooks wrote:
2009/7/29 Ralf R. Radermacher <[email protected]>:
Dario Bonazza <[email protected]> wrote:
The AF point selection madness has been fixed as expected.
No change, on the other hand, with the non-defeatable dark frame
subtraction in B mode and no change either for this nonsense with the
illumination of the upper display.
Not sure i know what this dark frame thing you mention is.
Can some one elaborate for me.??
Dave
I'm sorry to say the K-7 ist still ununsable for fireworks
and thunderstorms and severely handicapped for night photography of any
kind. Astrophotographers will have to llook elsewhere.
Knowing the frequency of Pentax' firmware updates this means at least
half a year, probably more, with no change in sight. I've given myself
24 hours to decide if I'll keep mine or not.
Ralf
--
Ralf R. Radermacher - DL9KCG - Köln/Cologne, Germany
Blog : http://the-real-fotoralf.blogspot.com
Audio : http://aporee.org/maps/projects/fotoralf
Web : http://www.fotoralf.de
--
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.
--
The free man owns himself. He can damage himself with either eating or
drinking; he can ruin himself with gambling. If he does he is certainly a damn
fool, and he might possibly be a damned soul; but if he may not, he is not a
free man any more than a dog.
--G. K. Chesterton
--
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.
