The below leaked image shows iPhone 5’s front-facing camera sensor and rear-camera sensor.
Front-facing camera:
The above image shows that iPhone 5’s front-facing camera piece is re-designed, nothing more to tell.
Rear-facing camera:
The back camera sensor also appears to have a re-design but is lacking two critical elements from the iPhone 4′s piece: the LED camera flash and the piece that blocks camera/flash interference. This works perfectly with the apparent fifth-generation iPhone case leak from today – and it seems possible that Apple is actually relocating the iPhone’s camera flash for their next iPhone.