With the large maximum aperture, excellent background blur is possible even with a fast shutter speed. The aspherical lens element makes the lens compact and corrects spherical aberrations. The image is sharp even at the edges. Lead-free glass is used.

• Weight (g): 310
• Filter Diameter (mm): 58
• Maximum Magnification (x): 0.18
• Magnification with Extension Tube EF12: 0.61-0.43
• Magnification with Extension Tube EF25: 1.13-0.96
• Diagonal Angle of View: 75??
• Horizontal angle of view: 65??
• Lens Construction (elements/groups): 10/9 Max. Diameter x Length (mm): 73.6x55.6
• Minimum Aperture: 22
• No. of Diaphragm blades: 7
• Closest Focusing Distance (m): 0.25
• AF Actuator: USM (Mechanical full-time manual focusing built-in.)