Help to calculate sensor width for calibration tool

 
Hello, we need to calibrate the Sony HDC-3100 with the lense called Canon J14ex4.3B/IASE/S/UHDGC/4K
AI assistant says:The Sony HDC-3100 camera uses a 2/3-inch type CMOS sensor. This sensor is 1/3 of the size of a full-frame 35mm sensor, meaning it's approximately 12.6mm x 8.4mm.while this table says:Help to calculate sensor width for calibration tool

May we use 12.6mm or 8.8mm as sensor width in the calibration tool?

   Sergio Gómez

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