Nose mounted cameras in A320
I was a pax on a Finnair A320 the other day. The pax cabin video displays were showing live footage from cameras somewhere in the nose of the aircraft ; a foward looking camera during taxi and downward looking camera on gear retraction/extension. I've never seen this before. Is it standard fit on Airbuses and just never used or special order by Finnair ? Also, does it have any other purpose except for passenger amusement?
Thx