Night Vision Camera Systems
Some what affordable
Image Credit: Lou's Night vision build
16 -300 MM lens
480p-4k Recording
Price range: $100+
Pros: Cheapest night vision system around and its real military night vision from a UK tank.
Cons: Not a turn key system, you'll need a camera and a cheap 50MM lens from ebay and be able to build this yourself.
Aurora Day/Night Color HD Action Camera
16 MM lens
720P Recording
Price range: $600
This is a cool 4th generation night vision color camera that originated from kickstarter.
Pros: Affordable, compact and you can take it anywhere. Requires hardly any light source at all. You can use in day or night so its a cheap skywatching solution that will let you either one.
Cons: Not full HD, no HDMI port, can't be hooked up to a large flat screen monitor.
Aurora Day/Night Color HD Action Camera
5-20X
Smart Ultra HD day & night rifle scope
Price range: $800
