Canon RF 100-400mm F5.6-8 IS USM vs Canon EF 400mm F2.8 L IS III USM
This is a full comparison between the lenses Canon RF 100-400mm F5.6-8 IS USM and Canon EF 400mm F2.8 L IS III USM.
Compare Specifications
Product |
Canon RF 100-400mm F5.6-8 IS USM |
Canon EF 400mm F2.8 L IS III USM |
| Name | Canon RF 100-400mm F5.6-8 IS USM | Canon EF 400mm F2.8 L IS III USM |
| Manufacturer | Canon | Canon |
| SKU | ||
Release Date and Price |
Canon RF 100-400mm F5.6-8 IS USM |
Canon EF 400mm F2.8 L IS III USM |
| Release Year | 2021 | 2018 |
| Release Date | 2021-09-14 | 2018-09-05 |
| MSRP | N/A | N/A |
| Last known price | 599 USD | 9999 USD |
| Buy it today |
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Lens Type |
Canon RF 100-400mm F5.6-8 IS USM |
Canon EF 400mm F2.8 L IS III USM |
| Lens Type | Telephoto |
Telephoto Supertelephoto |
| Zoom or Prime | Zoom lens | Prime lens (no zoom) |
Mount and Compatibility |
Canon RF 100-400mm F5.6-8 IS USM |
Canon EF 400mm F2.8 L IS III USM |
| Mount | Canon RF | Canon EF |
| Designed for APS-C sensor | No (Suitable for all sensors) | No (Suitable for all sensors) |
Focus |
Canon RF 100-400mm F5.6-8 IS USM |
Canon EF 400mm F2.8 L IS III USM |
| Autofocus (AF) | Yes | Yes |
| Built-in Autofocus (AF) Motor | Yes | Yes |
| Motor Type | Nano Ultrasonic | Ring-Type Ultrasonic |
| Focus Method | No information | No information |
| Closest Focusing Distance | 88 cm | 250 cm |
| Maximum Magnification | 0,41 | 0,17 |
Aperture |
Canon RF 100-400mm F5.6-8 IS USM |
Canon EF 400mm F2.8 L IS III USM |
| Maximum Aperture |
F5,6-8
This lens has a variable aperture at different focal lengths. F5,6 at 100 mm F8 at 400 mm Variable Aperture |
F2,8 |
| Diaphragm Blades | 9 | 9 |
Optics |
Canon RF 100-400mm F5.6-8 IS USM |
Canon EF 400mm F2.8 L IS III USM |
| Construction | 12 elements / 9 groups | 17 elements / 13 groups |
| Special Elements/Coatings | 1 UD + 1 aspherical element, Super Spectra Coating | Super UD + fluorite elements + Air Sphere + Super Spectra + fluorine coatings |
Focal Length |
Canon RF 100-400mm F5.6-8 IS USM |
Canon EF 400mm F2.8 L IS III USM |
| Focal Length | 100-400 mm | 400 mm |
| Zoom Range | 300 mm | None (Prime lens) No Zoom available. |
| Built-in Teleconverter | No | No |
| Teleconverter Multiplier | N/A | N/A |
| Image Stabilization | Yes | Yes |
| Image Stabilization CIPA Rating | 5.5 stops | 5 stops |
Physical |
Canon RF 100-400mm F5.6-8 IS USM |
Canon EF 400mm F2.8 L IS III USM |
| Weather Sealing | No | Yes |
| Diameter | 80 mm | 163 mm |
| Length | 165 mm | 343 mm |
| Weight | 635 gr | 2840 gr |
Other |
Canon RF 100-400mm F5.6-8 IS USM |
Canon EF 400mm F2.8 L IS III USM |
| Filter Type | Filter Thread | Drop-in Filter |
| Filter Diameter | 67 mm | 52 mm |
| Lens Hood | Not Included | Included |
| Lens Hood SKU | ET-74B | ET-155 (WIII) |
| Tripod Collar | N/A | Included |
| Tripod Collar SKU | N/A | N/A |
