CANON 300mm f/4
| Marketed | January 1960 |
| Original Price | sold overseas only |
| Lens Construction (group) | 4 |
| Lens Construction (element) | 5 |
| No. of Diaphragm Blades | -- |
| Minimum Aperture | 22 |
| Closest Focusing Distance (m) | 1.5 |
| Maximum Magnifcation (x) | -- |
| Filter Diameter (mm) | 48 |
| Maximum Diameter x Length (mm) | 91 x 135.4 |
| Weight (g) | 1,200 |
