A vehicular camera includes a circuit board having an imager disposed at a first side of the circuit board. A lens barrel accommodates a lens assembly having a plurality of lens elements spaced apart along the lens barrel by respective lens spacers. Each lens spacer is formed of a material having a coefficient of thermal expansion (CTE) of 5 ppm/° C. or less. The circuit board is positioned at a lens holder, and the lens barrel is positioned at a lens holder so as to optically align the lens and the imager. The lens barrel is formed of a material having a CTE that matches within ten percent of the CTE of the material that forms the lens holder, with the CTEs of the lens barrel and lens holder materials being greater than the CTE of the material of the lens spacers.