I just got to say for those of you that have a 3D TV. You are in for a treat. This game has some of the most impressive 3D that I have played in a game since Resistance 3. It is awesome.
Options > General > 3D Stereoscopy > Frame Packing (for Active shutter 3DTVs - infinicolor is the old style passive red/cyan glasses used for non-3DTVs). You'll want to set the 3D strength to at least 8.
And yes, even at 720p, the 3D effect is incredible, especially when you sync a viewpoint. Unlike other 3D games, even the character models are rendered in 3D rather than just a flat sprite on a 3D background. The distant background doesn't look 'painted' beyond a certain distance like it does in Revelations. The 'Eagle' view in 3D is even more impressive.
Ok thank you. I got the 3D display from Sony. Think my glasses might be not synced or something cause they power on but I get no 3D effect. Now to find my charging cord >.>
Make sure the battery swich is turned on and hold the power button on top of the glasses for a few seconds to turn them on. Also, make sure they are charged. The pair that came with my display had zero charge when I first unpacked them. The charging port is under the little clip beside the power button and uses a micro USB plug (the same USB cable as most non-Sony bluetooth headsets) if you've lost the cable that came with them.