- Diagonal Angle of View: 32° 11'-8° 15'
- Lens Construction (elements/groups): 13/9
- No. of Diaphragm blades: 7
- Minimum Aperture: 32-45
- Closest Focusing Distance: 1.5m
- Maximum Magnification (x): 0.25 (at 300mm)
- Filter Diameter: 58mm
The optical system, construction, and exterior are the same as the EF 75-300 mm f/4-5.6 III USM's. The difference is that it uses a DC motor instead of a USM to drive the AF.