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