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Camera Support #11172

Nikon D50 WhiteLevel

Added by Péter Báthory over 3 years ago. Updated 8 months ago.

Status:
Fixed
Priority:
Low
Assignee:
Category:
-
Target version:
Start date:
09/23/2016
Due date:
% Done:

100%

Estimated time:
Affected Version:
2.0.6

Description

bp@bathory:~/RAW teszt$ exiv2 -pt DSC_0152.dng | grep Level
Error: Directory Nikon1 with 25665 entries considered invalid; not read.
Exif.SubImage1.BlackLevelRepeatDim Short 2 1 1
Exif.SubImage1.BlackLevel Rational 1 0/256
Exif.SubImage1.WhiteLevel Short 1 4095

Currently there is <Sensor black="0" white="3880"/> specified in cameras.xml for Nikon D50 which seems wrong.

DSC_0152.NEF (5.66 MB) DSC_0152.NEF Péter Báthory, 09/23/2016 05:49 PM

Associated revisions

Revision 90a958a6 (diff)
Added by Roman Lebedev over 3 years ago

Nikon D50: actually has whitelevel of 4095, not 3880.

Based on the samples from every ISO...
Fixes #11172

Revision 0e558ce9 (diff)
Added by Roman Lebedev over 3 years ago

Nikon D50: actually has whitelevel of 4095, not 3880.

Based on the samples from every ISO...
Fixes #11172

(cherry picked from commit 90a958a658008f4a9d3cc93d4e1c0862ea1bb4f7)

History

#1 Updated by Roman Lebedev over 3 years ago

  • % Done changed from 0 to 50
  • Assignee set to Roman Lebedev
  • Status changed from New to In Progress

#2 Updated by Roman Lebedev over 3 years ago

In light of new findings, please take one raw per EVERY iso level, including EVERY sub-iso level (if any).
And pack that into tar and upload somewhere not here.

#3 Updated by Péter Báthory over 3 years ago

Roman Lebedev wrote:

In light of new findings, please take one raw per EVERY iso level, including EVERY sub-iso level (if any).
And pack that into tar and upload somewhere not here.

exiv2 -pt *.dng | grep WhiteLevel
ISO-0200_DSC_0158.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0250_DSC_0171.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0280_DSC_0170.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0360_DSC_0156.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0400_DSC_0168.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0640_DSC_0166.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0800_DSC_0174.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0900_DSC_0165.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-1100_DSC_0154.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-1400_DSC_0161.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-1600_DSC_0159.dng Exif.SubImage1.WhiteLevel Short 1 4095

#4 Updated by Roman Lebedev over 3 years ago

Péter Báthory wrote:

Roman Lebedev wrote:

In light of new findings, please take one raw per EVERY iso level, including EVERY sub-iso level (if any).
And pack that into tar and upload somewhere not here.

exiv2 -pt *.dng | grep WhiteLevel
ISO-0200_DSC_0158.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0250_DSC_0171.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0280_DSC_0170.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0360_DSC_0156.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0400_DSC_0168.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0640_DSC_0166.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0800_DSC_0174.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-0900_DSC_0165.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-1100_DSC_0154.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-1400_DSC_0161.dng Exif.SubImage1.WhiteLevel Short 1 4095
ISO-1600_DSC_0159.dng Exif.SubImage1.WhiteLevel Short 1 4095

This is so weird.
Can you do the same test as in https://redmine.darktable.org/issues/11171#note-9, does it really result in the same image brightness for all ISO's with the same whitelevel of 4095?

#5 Updated by Péter Báthory over 3 years ago

This is so weird.
Can you do the same test as in https://redmine.darktable.org/issues/11171#note-9, does it really result in the same image brightness for all ISO's with the same whitelevel of 4095?

Yes, all the same.
Btw, I dont think it weird, these cameras are very different: an 11 years old DSLR and a 3 years old MILC.

#6 Updated by Roman Lebedev over 3 years ago

  • % Done changed from 50 to 100
  • Status changed from In Progress to Fixed

#7 Updated by Roman Lebedev over 3 years ago

  • Target version set to 2.2.0

#8 Updated by ankit saini 8 months ago

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