Highly practical and portable telephoto zoom lens. The five zoom groups make the length only 4.8 in. (121.5mm). With rear focusing, the lens does not change length or rotate during focusing. Any filter effects therefore remain intact. It also makes autofocusing quick and quiet.

  • EF mount; telephoto zoom lens
  • Inner focusing; full-time manual focus
  • 100-300mm focal length
  • f/4.5-5.6 maximum aperture
  • Ring-type UltraSonic Motor (USM)


Focal Length

300mm, 50mm

Minimum Aperture