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General => Metadata => Topic started by: blue-j on January 31, 2019, 07:34:08 PM

Title: Sony ILCA-77M2 WBShiftAB_GM?
Post by: blue-j on January 31, 2019, 07:34:08 PM
Does anyone know what the Sony maker note tag "WBShiftAB_GM" stands for?

Thanks!
J
Title: Re: Sony ILCA-77M2 WBShiftAB_GM?
Post by: StarGeek on January 31, 2019, 08:05:57 PM
I don't have any idea, but the Sony tag name page (https://exiftool.org/TagNames/Sony.html) says
    "2 numbers: 1. positive is a shift toward amber, 2. positive is a shift toward magenta"
Title: Re: Sony ILCA-77M2 WBShiftAB_GM?
Post by: Hayo Baan on February 01, 2019, 12:58:50 AM
Sounds like an adjustment to the auto white balance to me.
Title: Re: Sony ILCA-77M2 WBShiftAB_GM?
Post by: StarGeek on February 01, 2019, 11:27:06 AM
The thing to remember is that there isn't documentation for most MakerNotes tags.  The various camera companies keep them propitiatory.  What information that is available is found by trial and error.  Taking a picture, changing a setting, taking another picture and comparing.   
Title: Re: Sony ILCA-77M2 WBShiftAB_GM?
Post by: blue-j on February 05, 2019, 07:49:38 PM
I think it stands for:

White Balance Shift (Amber-Blue / Green-Magenta)

https://photo.stackexchange.com/questions/96547/relationship-between-tint-temp-and-magenta-green-blue-amber-white-balance-correc (https://photo.stackexchange.com/questions/96547/relationship-between-tint-temp-and-magenta-green-blue-amber-white-balance-correc)
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