+ and - in game controll zooming.. you have to adjust this mission by mission... also you can change view using the F1-F5 keysTry F1-F1, then press F5 and try F1-F4.. they all give different perspective to the playing fiels.. also if you do not target a ship and press F2 and use the Home, Page Up, Page Down, and End keys, this controlls panning around ships.. Using F2 after targeting an enemy ship allows you to pan around an enemy ship + an - still does zoom.. [ and ] controlls game speed in single player if you press F5 which is camera lock, and it states Camera Lock Disabled.. all views are centered on your ship.. with camera lock on, all views are centered on your target.. if you do not have a target, views revert back to center on your ship..
F3 with Camera lock enabled is the game default.
Hope that this helps.
P.S. raising game gamma will make cloaked ships show up as a hazy against the background, but it will also distort colors and effects in game.
Anyhow, i hope that this helps.