Paul Graham and company adjust for production value in YC application videos. Someone who did even multiple takes was criticized as being too produced.
Just use a camcorder or whatever.
EDIT: this is a specific case of the YC process being allergic to bullshit and sell. They are looking for whether the founders are awesome and can do great works, so they don’t care about polish. (of course basic standards apply).
Also, I’m assuming this is for your YC application