Minimum of 2 hours is required.  
 
You get one of the following:
 
     *Canon 50mm F1.8 AF
     *Canon 35mm F2.0 AF
     *Canon 85mm F1.8 AF
     *Rokinon 85mm F1.4 AF
     *Irix 15mm F2.4 (Manual Focus)
     *Canon 24mm F2.8 AF (for APSC)
 
A technician will be present to assist and ensure that no damage is done to the equipment.
 
You will be responsible for any damage / compromise / cleaning / repair of any damaged or compromised