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Canon EF 300 mm f/4L USM
Specifications:
| Manufacturer | Canon |
|---|---|
| Model | EF 300 mm f/4L USM |
| Lens style | Telephoto |
| Focal length | 300 mm |
| Maximum aperture | f/4 |
| Angle of view | 8.2 o |
| Closest focusing distance | 2.5 m |
| Maximum magnification | 1:7.69 |
| Minimum aperture | 32 |
| Number of diaphragm blades | 8 |
| Auto focus type | USM |
| Lens Construction | 8 elements / 7 groups |
| Filter diameter | 77 mm |
| Macro | No |
| Available mounts | Canon EF |
| Dimensions | 90 x 213.5 mm |
| Weight | 1165 g |
| Additional information | Marketed December 1991 |
