Do you mean activating Camera Suite? Assuming you do play PS4. Hold Circle, then press right on your D-pad. This'll bring it to camera view, but you'll still be controlling your ship. Press in the right stick (R3) to go free camera mode. You should see all the controls on the left there, if you don't hit Triangle to hide/unhide HUD.
All the controls are like most games with a screenshot mode. L1 and R1 will roll the camera. L2 and R2 will elevate it. Holding Square and hitting L1 will slow down the cameras movements, R1 to speed them up.