A method for dynamically calibrating an image capture device comprising: a) determining a distance ( D CRT, D EST) to an object within a scene being imaged by said image capture device; b) determining a first lens actuator setting ( DAC INIT) as a function of: a stored calibrated lens actuator setting DAC NEAR PLP for a pre-determined near focus distance ( D NEAR), a stored calibrated lens actuator setting DAC FAR PLP for a pre-determined far focus distance ( D FAR), a focal length ( f) of the image capture device and said determined distance ( D CRT, D EST); c) determining a second lens actuator setting ( DAC FOCUS) providing maximum sharpness for said object in a captured image of said scene by moving the lens forth and back until a best contrast value is achieved; and d) storing said determined distance ( D CRT, D EST), first lens actuator setting ( DAC INIT) and second lens actuator setting ( DAC FOCUS); characterized in that said method further comprises: e) subsequently repeating steps a) to c) for an object at a second determined distance separated from said first determined distance wherein said first and second determined distances are sufficiently separated from one another so that the respective depths of field at said first and second determined distances do not overlap; f) determining a calibration correction ERR NEAR PLP ERR FAR PLP for each of said calibrated lens actuator settings DAC NEAR PLP DAC FAR PLP as a function of at least: respective differences between said second lens actuator setting ( DAC FOCUS) and said first lens actuator setting ( DAC INIT) for each of said first and second determined distances; and g) adjusting the stored calibrated lens actuator settings according to said determined calibration corrections. a) determining a distance ( D CRT, D EST) to an object within a scene being imaged by said image capture device; b) determining a first lens actuator setting ( DAC INIT) as a function of: a stored calibrated lens actuator setting DAC NEAR PLP for a pre-determined near focus distance ( D NEAR), a stored calibrated lens actuator setting DAC FAR PLP for a pre-determined far focus distance ( D FAR), a focal length ( f) of the image capture device and said determined distance ( D CRT, D EST); c) determining a second lens actuator setting ( DAC FOCUS) providing maximum sharpness for said object in a captured image of said scene by moving the lens forth and back until a best contrast value is achieved; and d) storing said determined distance ( D CRT, D EST), first lens actuator setting ( DAC INIT) and second lens actuator setting ( DAC FOCUS); characterized in that said method further comprises: e) subsequently repeating steps a) to c) for an object at a second determined distance separated from said first determined distance wherein said first and second determined distances are sufficiently separated from one another so that the respective depths of field at said first and second determined distances do not overlap; f) determining a calibration correction ERR NEAR PLP ERR FAR PLP for each of said calibrated lens actuator settings DAC NEAR PLP DAC FAR PLP as a function of at least: respective differences between said second lens actuator setting ( DAC FOCUS) and said first lens actuator setting ( DAC INIT) for each of said first and second determined distances; and g) adjusting the stored calibrated lens actuator settings according to said determined calibration corrections.