I bought Nightfox Red ($110, open box, 1x, 940nm, 1080p rec) on eBay.
It also comes with an 18650 battery, a 32GB memory card, and a comfortable head strap and neck strap.
I also bought 940nm IR Flashlight from Amazon.
In the bathroom, I pointed the IR Flashlight at the ceiling and turned off(IR:0) the infrared LED of the Nightvision goggles.
The result is as shown in the attached photo.
The goggles can adjust the brightness of the LCD screen(1-5), and no light leaks out of the goggles.
Now it's time to test if it affects the Foma films.
Thank you all for your responses!
This image is extracted from a 1920 x 1080 IR video.
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