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Ouu... Good question! But to answer this I will have to make a whole separate video :D
Stay tuned! :)
But about the flicker. Not really. But really rarely it can happen I guess it's because of the high shutter speeds. I usually use ND filters so no flickering.

That makes sense, I have some old footage that has flicker, but I didn't have ND filters back then. Thanks! I will stay tuned!

Nice! :) Glad it helped!