Hi there I have filmed both halves of some games using the 0.5 lens of two iPhones. I have also filmed videos as recommended for calibration and attach them below. I would be very grateful if you could post the calibration parameters as soon as you can as all my friends can’t wait for the footage 
iPhone 12 0.5 lens calibration video:
iPhone 15 pro max 0/5 lens calibration video:
Are the orientations of these 2 videos correct? I thought you would film the game in landscape mode to maximize the view angle.
Yes sorry they seemed to have saved in portrait but they were filmed in landscape. Can you rotate them ?
This is for iPhone 12 0.5 lens:
{
"distortion_coefficients": [11.17378856903342,-44.19430545680838,-0.0004929688710645039,0.001113312017129257,66.50887574742534,11.185026440911562,-44.26853718602197,66.67791672070075,0.0,0.0,0.0,0.0,0.0,0.0
],
"intrinsic_matrix": [893.5268734229359,0.0,961.4317102103905,0.0,895.0544020597773,540.589447050125,0.0,0.0,1.0
]
}
This is for iPhone 15 pro Max:
{
"distortion_coefficients": [12.881983453085578,-6.12469777944087,-0.0009314664065349503,-0.000716748438270507,4.706217456528554,12.883652328360427,-6.038613102475213,4.679237475833294,0.0,0.0,0.0,0.0,0.0,0.0
],
"intrinsic_matrix": [872.6762201310132,0.0,956.2263400865058,0.0,875.1309660292621,536.7153914508558,0.0,0.0,1.0
]
}
Save the data in a file and click ‘Load from file’ when selecting the camera model.
I would suggest recording 4k videos next time instead, but you’ll need to provide 4k calibration videos. When you stitch 2 1080p videos together the final video will be less than 4K.