What sensor is this!

[Nexus R]

Does anyone know what the white circle is on the left of the back camera, surely some kind of sensor...

Thanks.

 

[hgoldner]

Does anyone know what the white circle is on the left of the back camera, surely some kind of sensor...

Thanks.

I believe that's the focuser.

 

[alejopugli]

Isn't it a color spectrum sensor?

 

[Nexus R]

Isn't it a color spectrum sensor?

you might be right...