Canon RF 100mm f/2.8 L Macro IS USM vs Canon RF 70-200mm f/4 L IS USM
The bottom line
The Canon RF 70-200mm f/4 L IS USM is a zoom (70-200mm) and the Canon RF 100mm f/2.8 L Macro IS USM is a 100mm prime. The zoom gives you framing flexibility from one lens; the prime trades that for a fixed focal length that's usually brighter (f/2.8 vs f/4) and lighter to carry. Choose flexibility or a fast single focal length.
Choose the Canon RF 100mm f/2.8 L Macro IS USM if…
- ✓You want more light and background blur — f/2.8 is faster than f/4, better for low light and subject separation.
- ✓You shoot close-ups — 1.4x magnification gets you true macro the other can't.
- ✓You prefer a fast, compact single focal length — a 100mm prime over a zoom.
Choose the Canon RF 70-200mm f/4 L IS USM if…
- ✓You need more reach — it goes to 200mm vs 100mm for distant subjects, wildlife and sport.
- ✓You shoot wide — it starts at 70mm vs 100mm for landscapes, interiors and architecture.
- ✓You want one-lens flexibility — a 70-200mm zoom covers what the fixed 100mm can't reframe.
Where they differ
- ›Aperture: the Canon RF 100mm f/2.8 L Macro IS USM opens to f/2.8 vs the Canon RF 70-200mm f/4 L IS USM's f/4 — more light and shallower depth-of-field.
- ›Focal range: Canon RF 100mm f/2.8 L Macro IS USM is 100mm, Canon RF 70-200mm f/4 L IS USM is 70-200mm — different framing and reach.
- ›Type: the Canon RF 70-200mm f/4 L IS USM is a zoom (flexible framing), the Canon RF 100mm f/2.8 L Macro IS USM a prime (one focal length, usually brighter and lighter).
- ›Price: the Canon RF 100mm f/2.8 L Macro IS USM is $1,399, $200 under the Canon RF 70-200mm f/4 L IS USM.
- ›Close-up: the Canon RF 100mm f/2.8 L Macro IS USM reaches 1.4x magnification vs 0.28x — more for close-up and macro work.
Frequently asked
Is the Canon RF 100mm f/2.8 L Macro IS USM or the Canon RF 70-200mm f/4 L IS USM better?
The Canon RF 70-200mm f/4 L IS USM is a zoom (70-200mm) and the Canon RF 100mm f/2.8 L Macro IS USM is a 100mm prime. The zoom gives you framing flexibility from one lens; the prime trades that for a fixed focal length that's usually brighter (f/2.8 vs f/4) and lighter to carry. Choose flexibility or a fast single focal length.
Who should choose the Canon RF 100mm f/2.8 L Macro IS USM?
Choose the Canon RF 100mm f/2.8 L Macro IS USM if you want more light and background blur — f/2.8 is faster than f/4, better for low light and subject separation. Choose it if you shoot close-ups — 1.4x magnification gets you true macro the other can't. Choose it if you prefer a fast, compact single focal length — a 100mm prime over a zoom.
Who should choose the Canon RF 70-200mm f/4 L IS USM?
Choose the Canon RF 70-200mm f/4 L IS USM if you need more reach — it goes to 200mm vs 100mm for distant subjects, wildlife and sport. Choose it if you shoot wide — it starts at 70mm vs 100mm for landscapes, interiors and architecture. Choose it if you want one-lens flexibility — a 70-200mm zoom covers what the fixed 100mm can't reframe.
What is the main difference between the Canon RF 100mm f/2.8 L Macro IS USM and the Canon RF 70-200mm f/4 L IS USM?
Aperture: the Canon RF 100mm f/2.8 L Macro IS USM opens to f/2.8 vs the Canon RF 70-200mm f/4 L IS USM's f/4 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 100mm | 70-200mm |
| Lens Type | Prime | Zoom |
| Optical Elements | 17 | 16 |
| Optical Groups | 13 | 11 |
| Aperture & Iris | ||
| Maximum Aperture | f/2.8 | f/4 |
| Minimum Aperture | f/32 | f/32 |
| Aperture Blades | 9 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | Canon RF | Canon RF |
| Angle of View | 24° – 24° | 34° – 12° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | Dual Nano USM | Dual Nano USM |
| Focus Limiter | Yes | Yes |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 26 cm | 60 cm |
| Max Magnification | 1.4x | 0.28x |
| Stabilization & Video | ||
| Optical Stabilization | Yes | Yes |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $1,399 | $1,599 |
| Filter Size | 67mm | 77mm |
| Diameter | 81.5mm | 83.5mm |
| Length | 148mm | 119mm |
| Weight | 730g (1.61 lb) | 695g (1.53 lb) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | No | No |
