that's probably black frame subtraction for > 1sec exposures. if you stick
to shorter exposures than that you should be fine.
the profiling doesn't take black frames/long exposures into account, the
hope is that it'll transparently work once you got rid of the sensor heat
noise by subtracting the black frame. that requires that you profile it
with short exposures though.
j.
On Wed, Sep 25, 2013 at 2:38 PM, Richard Isted - Hotmail <
richard_is...@hotmail.com> wrote:
> Dear Cleaver People,
>
> I have a question I'm hoping someone can assist with so that I do this
> correctly the first time.
>
> Once support has been added for the DMC-GX7 I was going to take some
> images for noise profiling as described in the excellent blog post link
> below.
>
> http://www.darktable.org/2012/12/profiling-sensor-and-photon-noise/
>
> The GX7 seems to have an option called "Long Shtr Noise Reduction" (under
> Menu Set / Rec / Long Shtr NR) which is enabled by default. Should I turn
> this off before creating my images to be used for noise profiling or not?
>
> Many thanks,
>
>
> Richard.
>
>
>
>
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