Ubiquiti's "airMAX LiteBeam 5AC (450 Mbit/s)", with product code "LBE-5AC-Gen2", is designed for long-distance wireless links, but can also be used in access point scenarios for internal applications.

### Access point functionality
- This antenna can be configured in access point mode, but is primarily optimised for long-distance point-to-point (PtP) and point-to-multipoint (PtMP) links.

### Range and performance
- The effective range of this antenna is generally several kilometres (up to 15 km or more), which makes it less suitable for short-distance applications such as in a hangar at 50 metres. However, it can work in this context if conditions are favourable (direct line of sight, absence of significant obstacles).

### Use with cameras
- If you need to connect cameras within 5 metres of each other at 50 metres from the house, this antenna could work, but it would not be the most optimal solution. It is designed for long distance directional links and could introduce more complexity than necessary for a short distance application.

### Use as a repeater
- The airMAX LiteBeam 5AC is not typically used as a standard Wi-Fi repeater. It is better suited to point-to-point or point-to-multipoint links where it can use its directional antenna to improve the reliability and speed of the connection.

### Recommendation
For a short-distance application such as yours, it may be more appropriate to use a standard Wi-Fi access point or a Wi-Fi repeater designed specifically for indoor environments or short distances. This would offer you a simpler solution more suited to your needs.