I discovered this when shooting my first night shots with my K100, and
again when shooting at night with my K10. It took at least as long to
'save' the image as it took to expose it in the first place. I found I
could turn the noise reduction off to save time in the field, but then
had to rely on software on my iMac to do the noise reduction after the
fact.
Thinking back to those days (nights) in 2007-2008 I realize now just
what Ralf is disappointed with in the K20 and K-7.
My earlier post about the K100 and K10 not having a OFF for NR is
turned around. They do have an OFF position. It's the K20 that is
unclear. You can have the NR in 'Auto' or 'On' for slow shutter speeds
(longer than 3/10s) AND you can have NR 'On' or 'Off' for "high-
sensitivity setting". But the manual in no way explains what the "high-
sensitivity setting" threshold is, not does it mention if the exposure
length of 3/10s or longer will kick in NR regardless of the "high-
sensitivity setting".
Pentax?
On Aug 1, 2009, at 15:06 , John Sessoms wrote:
According to the K10 manual there's a "noise reduction" function
with the bulb setting. The manual doesn't tell you much beyond that,
just refers to the Custom Setting Menu.
All it says there is "Sets whether to use Noise Reduction in slow
speed shooting" and refers you back to the page for bulb setting.
I looked at my K10D's menu and Noise Reduction is set to 2 (= NO),
so I guess I must have turned it off at some point.
I think I may have seen this with the *ist-D. When shooting bulb, it
seemed to take a loooooooong time to write the image to memory - the
little "busy" lamp on the back of the camera would stay on after the
mirror flipped back down.
From: Joseph McAllister
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:
Joseph McAllister
Lots of gear, not much time
http://gallery.me.com/jomac
http://web.me.com/jomac/show.me/Blog/Blog.html
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