Canon RF 28-70mm f/2 L USM vs Canon RF 70-200mm f/2.8 L IS USM Z
The bottom line
Similar coverage, different speed: the Canon RF 28-70mm f/2 L USM opens to f/2 versus the Canon RF 70-200mm f/2.8 L IS USM Z's f/2.8 — more light and shallower background blur. The Canon RF 70-200mm f/2.8 L IS USM Z gives that up to stay lighter (880g (1.94 lb)). It comes down to how much you value that extra brightness.
Choose the Canon RF 28-70mm f/2 L USM if…
- ✓You want more light and background blur — f/2 is faster than f/2.8, better for low light and subject separation.
- ✓You shoot wide — it starts at 28mm vs 70mm for landscapes, interiors and architecture.
Choose the Canon RF 70-200mm f/2.8 L IS USM Z if…
- ✓You need more reach — it goes to 200mm vs 70mm for distant subjects, wildlife and sport.
- ✓You shoot handheld or on an unstabilised body — it has optical stabilisation, the other doesn't.
- ✓You value portability — at 880g (1.94 lb) it's lighter than the 1430g (3.15 lb) alternative for travel and all-day carry.
Where they differ
- ›Aperture: the Canon RF 28-70mm f/2 L USM opens to f/2 vs the Canon RF 70-200mm f/2.8 L IS USM Z's f/2.8 — more light and shallower depth-of-field.
- ›Focal range: Canon RF 28-70mm f/2 L USM is 28-70mm, Canon RF 70-200mm f/2.8 L IS USM Z is 70-200mm — different framing and reach.
- ›Price: the Canon RF 28-70mm f/2 L USM is $3,099, $400 under the Canon RF 70-200mm f/2.8 L IS USM Z.
- ›Stabilisation: only the Canon RF 70-200mm f/2.8 L IS USM Z has optical stabilisation — steadier handheld shots, especially on bodies without IBIS.
- ›Weight: the Canon RF 70-200mm f/2.8 L IS USM Z is 880g (1.94 lb) vs 1430g (3.15 lb) — you'll feel the difference handheld.
Frequently asked
Is the Canon RF 28-70mm f/2 L USM or the Canon RF 70-200mm f/2.8 L IS USM Z better?
Similar coverage, different speed: the Canon RF 28-70mm f/2 L USM opens to f/2 versus the Canon RF 70-200mm f/2.8 L IS USM Z's f/2.8 — more light and shallower background blur. The Canon RF 70-200mm f/2.8 L IS USM Z gives that up to stay lighter (880g (1.94 lb)). It comes down to how much you value that extra brightness.
Who should choose the Canon RF 28-70mm f/2 L USM?
Choose the Canon RF 28-70mm f/2 L USM if you want more light and background blur — f/2 is faster than f/2.8, better for low light and subject separation. Choose it if you shoot wide — it starts at 28mm vs 70mm for landscapes, interiors and architecture.
Who should choose the Canon RF 70-200mm f/2.8 L IS USM Z?
Choose the Canon RF 70-200mm f/2.8 L IS USM Z if you need more reach — it goes to 200mm vs 70mm for distant subjects, wildlife and sport. Choose it if you shoot handheld or on an unstabilised body — it has optical stabilisation, the other doesn't. Choose it if you value portability — at 880g (1.94 lb) it's lighter than the 1430g (3.15 lb) alternative for travel and all-day carry.
What is the main difference between the Canon RF 28-70mm f/2 L USM and the Canon RF 70-200mm f/2.8 L IS USM Z?
Aperture: the Canon RF 28-70mm f/2 L USM opens to f/2 vs the Canon RF 70-200mm f/2.8 L IS USM Z's f/2.8 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 28-70mm | 70-200mm |
| Lens Type | Zoom | Zoom |
| Optical Elements | 19 | 18 |
| Optical Groups | 13 | 14 |
| Aperture & Iris | ||
| Maximum Aperture | f/2 | f/2.8 |
| Minimum Aperture | f/22 | 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 | 75° – 34° | 34° – 12° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | Ring USM | Dual Nano USM |
| Focus Limiter | No | Yes |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 39 cm | 70 cm |
| Max Magnification | 0.18x | 0.23x |
| Stabilization & Video | ||
| Optical Stabilization | No | Yes |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | Yes | Yes |
| General | ||
| Price (MSRP) | $3,099 | $3,499 |
| Filter Size | 95mm | 77mm |
| Diameter | 103.8mm | 90mm |
| Length | 139.8mm | 146mm |
| Weight | 1430g (3.15 lb) | 880g (1.94 lb) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | No | Yes |
