- Specifications
| Marketed | July 1982 |
| Original Price | 295,000 yen |
| Lens Construction (group) | 13 |
| Lens Construction (element) | 16 |
| No. of Diaphragm Blades | 8 |
| Minimum Aperture | 32 |
| Closest Focusing Distance (m) | 2.53 |
| Maximum Magnification (x) | 0.144 |
| Filter Diameter (mm) | 34 |
| Maximum Diameter x Length (mm) | 104 x 250 |
| Weight (g) | 1,800 |
This is a zoom lens with a high zoom ratio of 6x ranging from standard 50mm to 300mm telephoto.
The use of Canon’s original 4-group zoom optical system and UD glass lens element featuring low dispersion and low index of refraction offers correction of aberrations and excellent definition in all ranges despite being a high magnification zoom lens with a focal length of 300mm.
It also features excellent operability such a compact design reducing the overall length while adopting a 2-focusing ring system allowing focusing and zooming to be performed using separate rings.