Ellipticalpolarization

Hi, I am trying to optimize After Effects Camera Track function, which allows you to specify FOV, focal length, and so am trying to figure out exact parameters for the camera. As I understand, the GH5 has no crop in 1080. Sensor size is 13mm x 17.3 mm.

Also, when After Effects asks for focal length, do you specify the focal length as seen on an MFT lens (12, 24, etc) or do you have to multiple by 2?

Circularly polarized light

Now, I am not sure how all this crop factor business comes in. Even though 1080 has no crop, does that mean I use the 4/3 figure as the crop factor? Or I suppose I am confusing various sorts of cropping...

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