• This lens is compatible with Canon EF mount cameras in both full frame and crop frame sensors. The focal length equivalent on crop frame sensors is 136mm.
• This lens isnotcompatible with2Xand1.4XCanon extenders.
• This lens has Power AF, which means the front element cannot be manually focused back down flush with the barrel of the lens when your camera is off.
• Video shooters will not able to adjust focus on this lens while video is rolling.
