Is FOV in Legacy different than ETPro? What is the equivalent in Legacy? - ET-Legacy-Competitive/faq GitHub Wiki

Yes, there is a difference in FOV calculation between the 2 mods, as it has been reworked in Legacy.

To achieve the same FOV in Legacy as in ETPro use the following conversion ratio: cg_fov 90 in Legacy equals to 106.27 in ETPro.

You can also use the link below which will automatically convert your ETPro FOV to Legacy FOV. Simply replace ETPRO_FOV with your ETPro cg_fov value and your Legacy equivalent will pop up: https://www.wolframalpha.com/input/?i=atan%283%2F4tan%28PIETPRO_FOV%2F360%29%29*360%2FPI

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Credits: @kimi_ahk