Low Light Photography: Mechanical vs. Electronic Shutter

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Which type of Fujifilm shutter generates more noise in low light high ISO photography? Electronic or Mechanical shutter? Is there a difference in Fujifilm RAW files vs. out of the camera JPEG files when opened in Lightroom or Capture One?

See my other video on Electronic/Manual Shutter for Fujifilm cameras: https://www.youtube.com/watch?v=mQHygC6ABFg

Awesome Velcro strip: https://amzn.to/32jqu73

Fujifilm X-T4: https://amzn.to/3ikgxvA

Fujinon XF16-55mm Lens: https://amzn.to/2ZotGwe

Fujifilm Remote Shutter Release Controller: https://amzn.to/2RfWZws