How to reference the default camera in editor scene view.

So I iterated all the cameras in the world(if any) every tick and the world says there are zero cameras but there is actually one that unreal engine created, how can I get a reference to this camera? and If I add my own camera how can I stop this camera spawning.

Camera you see world through created by PlayerCameraManager, or if your player character have some camera component, PlayerCameraManager gets it and use as view target.

In simple case you can find player camera using GetPlayerController->GetViewTarget.

Also to set it use GetPlayerController->SetViewTarget.

https://docs.unrealengine.com/latest/INT/Programming/Tutorials/AutoCamera/2/