Panasonic: request for data collection

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Iliah Borg
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Panasonic: request for data collection
5 months ago

When handling Panasonic raw files, it may be that linearity maximums and black levels are set incorrectly in 3-rd party raw converters, including ACR/LR. To help determining it, please set your Panasonic camera to each available ISO, including the intermediate ones, and shoot something (dark frames and blown-out frames are OK too). Put the files into some ditrectory, cd to it, and from command prompt run

$ exiftool -U -H -S -model -iso -exposuretime -aperture -PanasonicRaw_0x000e -PanasonicRaw_0x000f -PanasonicRaw_0x0010 -PanasonicRaw_0x0018 -PanasonicRaw_0x0019 -PanasonicRaw_0x001a -PanasonicRaw_0x001c -PanasonicRaw_0x001d -PanasonicRaw_0x001e -csv *.RW2 > PanasonicDataCollection.csv

It looks like 0x000e..x0010 tags contain linearity maximums, next 3 tags have something to do with the setting of the second ISO stage amplifier/multiplier, and last three tags are black level (bias).

Resulting file looks like

SourceFile,Model,ISO,ExposureTime,Aperture,PanasonicRaw_0x000e,PanasonicRaw_0x000f,PanasonicRaw_0x0010,PanasonicRaw_0x0018,PanasonicRaw_0x0019,PanasonicRaw_0x001a,PanasonicRaw_0x001c,PanasonicRaw_0x001d,PanasonicRaw_0x001e

_1010314.RW2,DMC-GH3,125,1/4000,22.0,2626,2626,2626,256,256,256,128,128,128

_1010315.RW2,DMC-GH3,200,1/4000,22.0,4095,4095,4095,256,256,256,129,128,129

_1010316.RW2,DMC-GH3,400,1/4000,22.0,4095,4095,4095,256,256,256,130,129,129

_1010317.RW2,DMC-GH3,800,1/4000,22.0,4095,4095,4095,256,256,256,131,130,131

_1010318.RW2,DMC-GH3,1600,1/4000,22.0,4095,4095,4095,256,256,256,134,132,133

_1010319.RW2,DMC-GH3,3200,1/4000,22.0,4095,4095,4095,256,256,256,140,137,139

_1010320.RW2,DMC-GH3,6400,1/4000,22.0,4095,4095,4095,256,256,256,154,146,151

_1010321.RW2,DMC-GH3,12800,1/4000,22.0,4095,4095,4095,512,512,512,154,146,151

_1010322.RW2,DMC-GH3,25600,1/4000,22.0,4095,4095,4095,1024,1024,1024,160,152,157

Finally, please make your file available.

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