Another telephoto macro lens with a maximum magnification of 1x. Life-size close-ups can be taken from a farther distance without disturbing the subject (insects, etc.). The internal floating system minimizes fluctuations in aberrations caused by changes in the focusing distance. Optical performance is outstanding from 1x to infinity.

• Weight (g): 1,090.
• Filter Diameter (mm): 72.
• Maximum Magnification (x): 1.
• Magnification with Extension Tube EF12: 1.09-0.07.
• Magnification with Extension Tube EF25: 1.21-0.15.
• Diagonal Angle of View: 13?? 40'.
• Horizontal angle of view: 11??25'.
• Lens Construction (elements/groups): 14/12.
• Max. Diameter x Length (mm): 82.5x186.6.
• Minimum Aperture: 32.
• No. of Diaphragm blades: 8.
• Closest Focusing Distance (m): 0.48.
• AF Actuator: USM.
• EF1.4x AF (Y/N): Y.
• EF1.4x Focal length (mm): 252.
• EF1.4x f-stop (f): 4.5-45