Camera system and vehicle having same

A camera system comprising:

• a camera module having an image sensor, a first lens holder having at least one lens, a second lens holder disposed between the image sensor and the first lens holder and having a first lens adjacent to the image sensor, and a driving portion that moves the second lens holder in an optical axis direction;
• a temperature sensor that detects an ambient temperature of the camera module;
• a storage portion storing a correction rate of an optical axis distance between the first lens and the image sensor according to the ambient temperature;
• and
• a temperature compensation portion that drives the driving portion using the ambient temperature and the correction rate of the storage portion to adjust the optical axis distance between the first lens and the image sensor,
• wherein the first lens is made of plastic,
• wherein the temperature compensation portion decreases or increases the optical axis distance between the first lens and the image sensor, which is changed by contraction or expansion of the first lens according to the temperature detected by the temperature sensor,
• wherein the optical axis distance between the first lens and the image sensor is back focal length (BFL),
• wherein an optical axis distance between the image sensor and an object-side surface of a lens closest to a subject within the camera module is total track length (TTL), and
• wherein BFL is changed within a range of 10% to 22% of TTL according to the detected temperature change.