Is the extra 100mm focal length compared with the 300mm f/4L IS worth getting this similarly priced lens? Not really—you’d do better getting a 1.4X tele-extender for the 300mm. Lacking IS, this one has outlived its usefulness.
| Lens Type: | Prime |
| Compatibility: | Full Frame |
| Range: | Super Telephoto |
| Mount: | Canon |
| Auto Focus: | Yes |
| Full-Time Manual Focus Override: | No |
| Silent AF: | Yes |
| Zoom: | No |
| Minimum Focal Length: | 400 mm |
| Maximum Focal Length: | 400 mm |
| Fastest Aperture: | f/5.6 |
| Slowest Aperture: | f/22.0 |
| Image Stabilization: | No |
| Elements: | 7 |
| Groups: | 6 |
| Filter Size: | 77mm |
| Length: | 10.1 inches |
| Weight: | 44.8 ounces |
| Price: | $1210.00 |
| Tripod Collar: | Yes |
| Included Case: | Yes |
| Macro: | No |
| Tilt/Shift: | No |
| Model Number: | |
| SKU: |
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