Call for white balance finetuning samples

Hi!

I’m researching stuff because I’d like to enhance extract_wb script in darktable and thus have better wb presets available.

Here’s what I need you to do

  1. Set your whitebalence preset to any pre-defined preset. I believe that “Daylight” is the most universal one
  2. Set your whitebalance preset finetuning in amber-blue range maximally towards amber (you might need to dig in the manual to know where it is, but I assure you the finetuning is there)
  3. take one shot making sure to use RAW (you can even leave the cap on on the lens :P)
  4. take the raw file and execute following command: exiftool "-WB_*" -WhiteBalance -WhiteBalance2 -WhitePoint -Make -Model -WBShiftAB -WBShiftAB_GM -WhiteBalanceFineTune -WBShiftIntelligentAuto -WBShiftCreativeControl "FILENAME.RAW"
  5. post the results here.

Example:

$ exiftool "-WB_*" -WhiteBalance -WhiteBalance2 -WhitePoint -Make -Model -WBShiftAB -WBShiftAB_GM -WhiteBalanceFineTune -WBShiftIntelligentAuto -WBShiftCreativeControl "IMG_0074.CR2"
WB RGGB Levels As Shot          : 1594 1024 1024 1971
WB RGGB Levels Auto             : 1628 1024 1024 1876
WB RGGB Levels Measured         : 1628 1024 1024 1876
WB RGGB Levels Daylight         : 1817 1024 1024 1711
WB RGGB Levels Shade            : 2101 1024 1024 1487
WB RGGB Levels Cloudy           : 1949 1024 1024 1596
WB RGGB Levels Tungsten         : 1279 1024 1024 2439
WB RGGB Levels Fluorescent      : 1513 1024 1024 2289
WB RGGB Levels Kelvin           : 1817 1024 1024 1711
WB RGGB Levels Flash            : 2005 1024 1024 1574
WB RGGB Levels                  : 1594 1024 1024 1971
White Balance                   : Daylight
Make                            : Canon
Camera Model Name               : Canon EOS 77D
WB Shift AB                     : -9

Edit: if you can do max amber and one step before max amber it would be great! If your camera is doing “half steps” then one half-step before max amber please :slight_smile:

and needs to be different than canon :slight_smile:

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Here’s my LX100M2:

WB RGB Levels 1                 : 578 256 535
WB RGB Levels 2                 : 615 256 498
WB RGB Levels 3                 : 645 256 467
WB RGB Levels 4                 : 423 256 795
WB RGB Levels 5                 : 601 256 483
WB RGB Levels 6                 : 534 256 557
WB RGB Levels 7                 : 423 256 795
WB CFA0 Level Daylight          : 2138
WB CFA1 Level Daylight          : 1024
WB CFA2 Level Daylight          : 1024
WB CFA3 Level Daylight          : 2231
WB Red Level Auto               : 2313
WB Blue Level Auto              : 2143
White Balance                   : Daylight
Make                            : Panasonic
Camera Model Name               : DC-LX100M2
WB Shift AB                     : -9
WB Shift Intelligent Auto       : 0
WB Shift Creative Control       : 0

Not sure why the output is so different from the previous one but this is my D750 (doesn’t have a daylight setting, so I used the sunny preset):

WB RB Levels                    : 2.11328125 1.203125 1 1
White Balance                   : Sunny
Make                            : NIKON CORPORATION
Camera Model Name               : NIKON D750
White Balance Fine Tune         : -6 0
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This is my D750 using the cloudy icon (6000K):

WB RB Levels                    : 2.2890625 1.1328125 1 1
White Balance                   : Cloudy
Make                            : NIKON CORPORATION
Camera Model Name               : NIKON D750
White Balance Fine Tune         : -6 0

The camera goes in half steps increment from B(lue)-6 to A(mber)+6, 12 to each side resulting in 25 steps (including the 0 position).

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WB GRB Levels Standard          : 302 387 690 17 302 665 408 21
WB GRB Levels Auto              : 302 574 491
WB GRB Levels                   : 302 580 470
White Balance                   : Daylight
Make                            : FUJIFILM
Camera Model Name               : X-T1
White Balance Fine Tune         : Red +0, Blue -180

@johnny-bit: You specifically asked for these, so I provide…

This is -8:

WB RGB Levels 1                 : 578 256 535
WB RGB Levels 2                 : 615 256 498
WB RGB Levels 3                 : 645 256 467
WB RGB Levels 4                 : 423 256 795
WB RGB Levels 5                 : 601 256 483
WB RGB Levels 6                 : 534 256 557
WB RGB Levels 7                 : 423 256 795
WB CFA0 Level Daylight          : 2138
WB CFA1 Level Daylight          : 1024
WB CFA2 Level Daylight          : 1024
WB CFA3 Level Daylight          : 2231
WB Red Level Auto               : 2313
WB Blue Level Auto              : 2143
White Balance                   : Daylight
Make                            : Panasonic
Camera Model Name               : DC-LX100M2
WB Shift AB                     : -8
WB Shift Intelligent Auto       : 0
WB Shift Creative Control       : 0

And just in case: -7

WB RGB Levels 1                 : 578 256 535
WB RGB Levels 2                 : 615 256 498
WB RGB Levels 3                 : 645 256 467
WB RGB Levels 4                 : 423 256 795
WB RGB Levels 5                 : 601 256 483
WB RGB Levels 6                 : 534 256 557
WB RGB Levels 7                 : 423 256 795
WB CFA0 Level Daylight          : 2138
WB CFA1 Level Daylight          : 1024
WB CFA2 Level Daylight          : 1024
WB CFA3 Level Daylight          : 2231
WB Red Level Auto               : 2313
WB Blue Level Auto              : 2143
White Balance                   : Daylight
Make                            : Panasonic
Camera Model Name               : DC-LX100M2
WB Shift AB                     : -7
WB Shift Intelligent Auto       : 0
WB Shift Creative Control       : 0

There are no steps in between -9, -8 and -7.

Thanks! Can you or @Coding_Dave do nikon? I think it’ll go -6 then -5.5

@Claes - can you do one step before max amber? I wonder whether it’ll go -170 or -175 or -160 or something completelly different :slight_smile:

Here is my output from the Sony Alpha 6000:

WB RGB Levels                   : 703 256 441
WB RGGB Levels Auto             : 2816 1024 1024 1768
WB RGGB Levels                  : 3456 1024 1024 1388
WB RGB Levels Daylight          : 2816 1024 1768
WB RGB Levels Cloudy            : 3024 1024 1624
WB RGB Levels Tungsten          : 1784 1024 3176
WB RGB Levels Flash             : 3196 1024 1624
WB RGB Levels 4500K             : 2556 1024 1992
WB RGB Levels Shade             : 3308 1024 1460
WB RGB Levels Fluorescent       : 2564 1024 2604
WB RGB Levels Fluorescent P1    : 2716 1024 1872
WB RGB Levels Fluorescent P2    : 3032 1024 1696
WB RGB Levels Fluorescent M1    : 2052 1024 3136
WB RGB Levels 8500K             : 3468 1024 1384
WB RGB Levels 6000K             : 3000 1024 1636
WB RGB Levels 3200K             : 1984 1024 2756
WB RGB Levels 2500K             : 1560 1024 3824
White Balance                   : Daylight
White Point                     : 0.313 0.329
Make                            : SONY
Camera Model Name               : ILCE-6000
WB Shift AB GM                  : 7 0
White Balance Fine Tune         : 0

Edit:

WB RGB Levels                   : 703 255 441
WB RGGB Levels Auto             : 2816 1024 1024 1768
WB RGGB Levels                  : 3356 1024 1024 1436
WB RGB Levels Daylight          : 2816 1024 1768
WB RGB Levels Cloudy            : 3024 1024 1624
WB RGB Levels Tungsten          : 1784 1024 3176
WB RGB Levels Flash             : 3196 1024 1624
WB RGB Levels 4500K             : 2556 1024 1992
WB RGB Levels Shade             : 3308 1024 1460
WB RGB Levels Fluorescent       : 2564 1024 2604
WB RGB Levels Fluorescent P1    : 2716 1024 1872
WB RGB Levels Fluorescent P2    : 3032 1024 1696
WB RGB Levels Fluorescent M1    : 2052 1024 3136
WB RGB Levels 8500K             : 3468 1024 1384
WB RGB Levels 6000K             : 3000 1024 1636
WB RGB Levels 3200K             : 1984 1024 2756
WB RGB Levels 2500K             : 1560 1024 3824
White Balance                   : Daylight
White Point                     : 0.313 0.329
Make                            : SONY
Camera Model Name               : ILCE-6000
WB Shift AB GM                  : 6 0
White Balance Fine Tune         : 0

You want a particular preset? I did notice that mine (sunny) and Coding_Dave (cloudy) do differ. Or do you want both (and more?)?

hi @mrwsl! that’s perfect! thanks!
btw: welcome to pixls.us!

Nope! can be any named preset :slight_smile:

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The output might suggest this isn’t -5.5 but it is. I double checked and redid the images twice:

Preset sunny and -5.5

WB RB Levels                    : 2.09765625 1.2109375 1 1
White Balance                   : Sunny
Make                            : NIKON CORPORATION
Camera Model Name               : NIKON D750
White Balance Fine Tune         : -6 0   <---  is -5.5 double checked

Preset sunny and -5.0

WB RB Levels                    : 2.08203125 1.22265625 1 1
White Balance                   : Sunny
Make                            : NIKON CORPORATION
Camera Model Name               : NIKON D750
White Balance Fine Tune         : -5 0

In camera (info screen, not the amber-blue change screen) I can see that the offset is A 5.5, might be a rounding thingy in exiftool?

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This MIGHT be a problem in exiftool if the info is in exif… according to https://exiftool.org/TagNames/Nikon.html it’s int16[n] so it’s integer… damn… this complicates nikon stuff a bit :confused:

Of course.

WB GRB Levels Standard          : 302 387 690 17 302 665 408 21
WB GRB Levels Auto              : 302 564 514
WB GRB Levels                   : 302 580 470
White Balance                   : Daylight
Make                            : FUJIFILM
Camera Model Name               : X-T1
White Balance Fine Tune         : Red +0, Blue -160
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This is probably a Nikon thing:

$ exiv2 -pa D75_0715.NEF | egrep -i "white|wb"
Exif.Image.ReferenceBlackWhite               Rational    6  0/1 255/1 0/1 255/1 0/1 255/1
Exif.Nikon3.WhiteBalance                     Ascii      13  SUNNY       
Exif.Nikon3.WhiteBalanceBias                 SShort      2  -6 0     <----- -6 instead of -5.5
Exif.Nikon3.WB_RBLevels                      Rational    4  537/256 310/256 256/256 256/256
Exif.NikonCb2b.WB_RGGBLevels                 Short       4  1236 64700 60476 44188
Exif.Photo.WhiteBalance                      Short       1  Manual
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Here’s the output from my Pentax K-1:

White Balance : Daylight
White Point : 19392 8192 8192 12256
Make : RICOH IMAGING COMPANY, LTD.
Camera Model Name : PENTAX K-1
WB Shift AB : -7

White Balance : Daylight
White Point : 19104 8192 8192 12448
Make : RICOH IMAGING COMPANY, LTD.
Camera Model Name : PENTAX K-1
WB Shift AB : -6

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@Thomas_Gulmark
Hallojsa!

Welcome!

Mvh
Claes fra Lund, Sverige

Hey @Thomas_Gulmark! welcome to the community and thanks for this! Pentax now added to list of sane exif data for wb finetuning :slight_smile:

Ha! I’ve just read that when coming to post my results :stuck_out_tongue_closed_eyes:

Anyway, just in case the model makes a difference, 5D mk II:

WB RGGB Levels As Shot          : 2433 1024 1024 1438
WB RGGB Levels Auto             : 2144 1024 1024 1708
WB RGGB Levels Measured         : 2144 1024 1024 1708
WB RGGB Levels Daylight         : 2144 1024 1024 1708
WB RGGB Levels Shade            : 2467 1024 1024 1411
WB RGGB Levels Cloudy           : 2310 1024 1024 1540
WB RGGB Levels Tungsten         : 1637 1103 1103 2897
WB RGGB Levels Fluorescent      : 1890 1048 1048 2548
WB RGGB Levels Kelvin           : 1712 1067 1067 2508
WB RGGB Levels Flash            : 2325 1024 1024 1522
WB RGGB Levels                  : 2433 1024 1024 1438
White Balance                   : Daylight
Make                            : Canon
Camera Model Name               : Canon EOS 5D Mark II
WB Shift AB                     : 9

750D:

WB RGGB Levels As Shot          : 2551 1024 1024 1509
WB RGGB Levels Auto             : 2236 1024 1024 1736
WB RGGB Levels Measured         : 2236 1024 1024 1736
WB RGGB Levels Daylight         : 2236 1024 1024 1736
WB RGGB Levels Shade            : 2589 1024 1024 1485
WB RGGB Levels Cloudy           : 2411 1024 1024 1601
WB RGGB Levels Tungsten         : 1563 1024 1024 2539
WB RGGB Levels Fluorescent      : 1896 1024 1024 2367
WB RGGB Levels Kelvin           : 2236 1024 1024 1736
WB RGGB Levels Flash            : 2485 1024 1024 1579
WB RGGB Levels                  : 2551 1024 1024 1509
White Balance                   : Daylight
Make                            : Canon
Camera Model Name               : Canon EOS 750D
WB Shift AB                     : 9

Hi!
This is for Lumix FZ1000:
WB RGB Levels 1 : 603 256 470
WB RGB Levels 2 : 649 256 427
WB RGB Levels 3 : 684 256 404
WB RGB Levels 4 : 432 256 686
WB RGB Levels 5 : 641 256 448
WB RGB Levels 6 : 605 256 480
WB RGB Levels 7 : 432 256 686
WB CFA0 Level Daylight : 1024
WB CFA1 Level Daylight : 2420
WB CFA2 Level Daylight : 1923
WB CFA3 Level Daylight : 1024
WB Red Level Auto : 2425
WB Blue Level Auto : 1895
White Balance : Daylight
Make : Panasonic
Camera Model Name : DMC-FZ1000
WB Shift AB : -9
WB Shift Intelligent Auto : 0
WB Shift Creative Control : 0

And Fuji xt20:
WB GRB Levels Standard : 302 373 875 17 302 627 486 21
WB GRB Levels Auto : 302 362 942
WB GRB Levels : 302 555 562
White Balance : Daylight
Make : FUJIFILM
Camera Model Name : X-T20
White Balance Fine Tune : Red +180, Blue -180

And this verified my observation that I’m not good at following my own directions and my sample instead towards amber was towards blue :stuck_out_tongue: I hope everyone here actually adjusted towards amber :stuck_out_tongue:

Thanks! this is 2nd fuji sample but it differs from @Claes’s one… It seemed to only affect Blue part… Can you do one step before amber (and make sure you’re only on amber/blue dimmension and not on magenta/green one?)

This is the setting I used, is that what you need? :