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Camera Support #11637

Noise Profile: Panasonic DMC-GX85

Added by Matt Vickers about 2 years ago. Updated almost 2 years ago.

Status:
Fixed
Priority:
Low
Assignee:
Stefan Schöfegger
Category:
-
Target version:
2.4.0
Start date:
06/04/2017
Due date:
% Done:

100%

Affected Version:
2.2.5

Description

I have created a dt_noiseprofile result for the Panasonic DMC-GX85 (also known as GX80) using ISO 200-25600 in 1 EV intervals and darktable 2.2.5. Forgot to use the 'extended' ISO 100 but if people are happy with the results here I will try to include that in a later effort.

Seems to work as expected, I like the wavelet results in particular. Does a nice job in lighter areas and is a tradeoff between noise and detail in the darkest areas.

First time working on any of this so feel free to make suggestions.

dt-noiseprofile-20170604.tar.gz (2.65 MB) Matt Vickers, 06/04/2017 06:41 AM

dt-noiseprofile-20170605.tar.gz (8.15 MB) Matt Vickers, 06/05/2017 05:17 AM

P1000260.RW2 - Noise profiling ISO100 Shot Panasonic DMC GX80/85 (18.4 MB) Benny Lil, 07/30/2017 12:55 PM

Associated revisions

Revision 54682e39
Added by Stefan Schöfegger almost 2 years ago

noise profile: Add Panasonic DMC-GX85, fixes #11637 and fixes #11664

History

#1 Updated by Romano Giannetti about 2 years ago

Thanks! Being this a camera I am seriously considering to buy... I hope the developers now that the 2.2.5 has been published will have time to collect and give feedback on the new cameras :-)

#2 Updated by Roman Lebedev about 2 years ago

  • Status changed from New to Incomplete
  • % Done changed from 0 to 20

Matt Vickers wrote:

I have created a dt_noiseprofile result for the Panasonic DMC-GX85 (also known as GX80)

using ISO 200-25600 in 1 EV intervals and darktable 2.2.5. Forgot to use the 'extended' ISO 100
but if people are happy with the results here I will try to include that in a later effort.

It is best to include all possible iso's since the beginning, because replacing noiseprofile technically changes output.
Also, it is really best to take a sample at each iso level that can be set in camera.
Because alternatively, the data will be linearly interpolated

#3 Updated by Matt Vickers about 2 years ago

Now that I know the process, it wasn't too hard to re-do it.

Attached is a profile from all available ISO settings on the camera 100-25600.

#4 Updated by Stefan Schöfegger about 2 years ago

  • Assignee set to Stefan Schöfegger

ISO 100 profile looks wrong. Pherata "extended ISO" ist not a real iso value but calculated afterwards.
Can you please upload you ISO 100 sample and I try to get a better matching or I have to remove the ISO 100 entry.

#5 Updated by Benny Lil almost 2 years ago

Here is a ISO100 sample taken with my GX80, assuming there is no true "ISO100" value in the camera settings, you have to enable the extended ISO setting to add ISO100 value. The native ISO range on GX80/85 is from ISO200 to ISO 25600

#6 Updated by Stefan Schöfegger almost 2 years ago

  • Status changed from Incomplete to Fixed
  • % Done changed from 20 to 100

#7 Updated by Roman Lebedev almost 2 years ago

  • Target version set to 2.4.0

#8 Updated by Martin Pecka almost 2 years ago

Could you please copy-paste these results also for GX80, which is just a European name for GX85? I've tried it by manually editing noiseprofiles.json and it works with my GX80.

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