A connecting rod is a fracture split-type connecting rod made of an \u03b1+\u03b2 type titanium alloy, including a rod main body and a big end provided at an end of the rod main body, the big end being fracture-split. When an operation of storing a shot is performed in a shot box connected to the lens apparatus having an extender, a memory stores data including a position of a zoom lens group at that time, a position of a focus lens group at that time, and a magnification of the extender at that time. Specific preferred structural embodiments are disclosed. In one design, a femto cell may send the at least one identity assigned to the femto cell and the location of the femto cell to mobile stations as an aid for positioning. In this manner, the sheath is easily and quickly retracted thus rapidly completing deployment of the prosthesis.