Parameters settings for fishye and catadioptric virtual cameras

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Good day.

I need to set parameters to virtual cameras for Blender, using this patch: https://github.com/uzh-rpg/rpg_blender_omni_camera

As it is described on page "The easiest is to get them from a real fisheye or catadioptric camera", but it is certainly is not the easiest way for me.

Can anybody advise me parameters for both types of camera?

What does it mean: "one set of parameters is valid for a given image size"? - does it depend on rendered image size?