EF135mm F2L USM Instruction Manual
Page 2
... after the subject comes into focus in this instruction Warning to prevent lens or camera malfunction or damage. Features 1. ENG-1 The Canon EF135mm f/2L USM, the EF200mm f/2.8L II USM, the EF300mm f/4L USM, and the EF400mm f/5.6L USM are high-performance telephoto lenses designed for EOS cameras. ¡"USM" stands for purchasing a Canon product. Thank you for Ultrasonic Motor.
... after the subject comes into focus in this instruction Warning to prevent lens or camera malfunction or damage. Features 1. ENG-1 The Canon EF135mm f/2L USM, the EF200mm f/2.8L II USM, the EF300mm f/4L USM, and the EF400mm f/5.6L USM are high-performance telephoto lenses designed for EOS cameras. ¡"USM" stands for purchasing a Canon product. Thank you for Ultrasonic Motor.