ExifTool Forum

General => Metadata => Topic started by: Klaus_Homeister on June 20, 2018, 11:25:16 AM

Title: Update Panasonic Tags Whitebalance
Post by: Klaus_Homeister on June 20, 2018, 11:25:16 AM
Hi Phil,

0x0003 WhiteBalance

I checked this on GX-8 for all that newer custom-Settings

0 = n/a
1 = Auto
2 = Daylight
3 = Cloudy
4 = Incandescent
5 = Custom#1
6 = n/a
7 = n/a
8 = Flash
9 = n/a
10 = Black & White
11 = Custom#2
12 = Shade
13 = Kelvin
14 = Custom#3
15 = Custom#4

-Klaus

[Edit]

And just this minute  I see that CameraIFD Tag 0x3300 is identical to this one her.

Title: Re: Update Panasonic Tags Whitebalance
Post by: Phil Harvey on June 20, 2018, 11:29:41 AM
Hi Klaus,

Thanks.  Do you see the values of 0, 6, 7 and 9?

Also, what is the difference between Custom#1/2/3/4?  Can you get different Custom WhiteBalance values for the same camera, or are these for different cameras?

- Phil

Title: Re: Update Panasonic Tags Whitebalance
Post by: Klaus_Homeister on June 20, 2018, 11:39:02 AM
Quote from: Phil Harvey on June 20, 2018, 11:29:41 AM
Thanks.  Do you see the values of 0, 6, 7 and 9?

No! Like Exif-Lightsource those values look like 'not allowed'.

-Klaus
Title: Re: Update Panasonic Tags Whitebalance
Post by: Phil Harvey on June 20, 2018, 11:43:11 AM
Thanks.  I think I'll add your new "Custom" values as "Manual 3" and "Manual 4", and change the second "Manual" in the current decoding to "Manual 2".

- Phil
Title: Re: Update Panasonic Tags Whitebalance
Post by: Klaus_Homeister on June 20, 2018, 11:53:14 AM
Quote from: Phil Harvey on June 20, 2018, 11:29:41 AM
Also, what is the difference between Custom#1/2/3/4?  Can you get different Custom WhiteBalance values for the same camera, or are these for different cameras?

You have 4 different places in WB-Menu wehre you can do "select white set" via selecting a grey or white area on the touchscreen.
The camera then makes a shot, calculates the gains, and keeps this resident in this storage-place until you make a new greyshot here. Additional there is the option to adjust the color from Green to Magenta and Amber to Blue.

-Klaus
Title: Re: Update Panasonic Tags Whitebalance
Post by: Klaus_Homeister on June 20, 2018, 02:08:38 PM

some slight additions.

on CameraIFD Tag 0x3300 the value can be '0' and has the same effect like '1'=Auto.

on new G9 from pre-roduction I have found two Multishot-Samples in very strange light conditions with values '18' & '26' in Tag 0x0003 and both resulting in an value '16' on CameraIFD:0x3300.

I can not see any new Whitebalance-Mode in G9's Manuals.
So my assumption is that >=16 is an Error-Value.
maybe out of range of the metering-system.
Or it indicates that metering isn't consistent over all of the 8 Shot's of those Multishot-Images.

for now I say: every value >=16 is an Error.

-Klaus





Title: Re: Update Panasonic Tags Whitebalance
Post by: Phil Harvey on June 21, 2018, 07:14:33 AM
Was 18 a daylight shot, and was 26 a black&white shot?  (Unlikely, but I thought I would ask.)

- Phil
Title: Re: Update Panasonic Tags Whitebalance
Post by: Klaus_Homeister on June 22, 2018, 02:59:02 PM
Both were Pixelshift shots of a nighttime cityscape with some bright neonlights.
And in both shots Kelvin is measured above 9800 degree - what can't be correct.

And up to now I can not decode data from Tag 0x1500-0x1516 ... but I am sure that those Tags contain data of the Lens-CPU measuring light and contrast of the scene -> in both shots they're complete zero (and _only_ in those two shots!).

The '26' _wasn't_ "Black&white"!
And the '18' wasn't Daylight.
So it doesn't work to say 16&10 for <something +B&W> or 16&2 for <unknown + Daylight>

-Klaus




Title: Re: Update Panasonic Tags Whitebalance
Post by: Phil Harvey on June 23, 2018, 07:53:10 AM
Thanks.

- Phil