Canon RF 24mm f/1.8 Macro IS STM vs Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF)
The bottom line
These cover different focal lengths — the Canon RF 24mm f/1.8 Macro IS STM is 24mm, the Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF) is 45mm — so they're not really substitutes. Pick by the field of view you actually need: the Canon RF 24mm f/1.8 Macro IS STM for standard, the Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF) for short-telephoto / portrait.
Choose the Canon RF 24mm f/1.8 Macro IS STM if…
- ✓You want more light and background blur — f/1.8 is faster than f/2.8, better for low light and subject separation.
- ✓You shoot wide — it starts at 24mm vs 45mm for landscapes, interiors and architecture.
- ✓You shoot handheld or on an unstabilised body — it has optical stabilisation, the other doesn't.
- ✓You value portability — at 270g (9.5 oz) it's lighter than the 599g (1.32 lb) alternative for travel and all-day carry.
Choose the Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF) if…
- ✓You need more reach — it goes to 45mm vs 24mm for distant subjects, wildlife and sport.
- ✓You shoot close-ups — 5x magnification gets you true macro the other can't.
Where they differ
- ›Aperture: the Canon RF 24mm f/1.8 Macro IS STM opens to f/1.8 vs the Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF)'s f/2.8 — more light and shallower depth-of-field.
- ›Focal range: Canon RF 24mm f/1.8 Macro IS STM is 24mm, Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF) is 45mm — different framing and reach.
- ›Stabilisation: only the Canon RF 24mm f/1.8 Macro IS STM has optical stabilisation — steadier handheld shots, especially on bodies without IBIS.
- ›Close-up: the Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF) reaches 5x magnification vs 0.5x — more for close-up and macro work.
- ›Weight: the Canon RF 24mm f/1.8 Macro IS STM is 270g (9.5 oz) vs 599g (1.32 lb) — you'll feel the difference handheld.
- ›Durability: the Canon RF 24mm f/1.8 Macro IS STM is weather-sealed; the other isn't.
Frequently asked
Is the Canon RF 24mm f/1.8 Macro IS STM or the Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF) better?
These cover different focal lengths — the Canon RF 24mm f/1.8 Macro IS STM is 24mm, the Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF) is 45mm — so they're not really substitutes. Pick by the field of view you actually need: the Canon RF 24mm f/1.8 Macro IS STM for standard, the Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF) for short-telephoto / portrait.
Who should choose the Canon RF 24mm f/1.8 Macro IS STM?
Choose the Canon RF 24mm f/1.8 Macro IS STM if you want more light and background blur — f/1.8 is faster than f/2.8, better for low light and subject separation. Choose it if you shoot wide — it starts at 24mm vs 45mm for landscapes, interiors and architecture. 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 270g (9.5 oz) it's lighter than the 599g (1.32 lb) alternative for travel and all-day carry.
Who should choose the Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF)?
Choose the Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF) if you need more reach — it goes to 45mm vs 24mm for distant subjects, wildlife and sport. Choose it if you shoot close-ups — 5x magnification gets you true macro the other can't.
What is the main difference between the Canon RF 24mm f/1.8 Macro IS STM and the Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF)?
Aperture: the Canon RF 24mm f/1.8 Macro IS STM opens to f/1.8 vs the Laowa Aksen 45mm f/2.8 1-5x Ultra Macro APO (Canon RF)'s f/2.8 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 24mm | 45mm |
| Lens Type | Prime | Prime |
| Optical Elements | 12 | 13 |
| Optical Groups | 10 | 9 |
| Aperture & Iris | ||
| Maximum Aperture | f/1.8 | f/2.8 |
| Minimum Aperture | f/22 | f/11 |
| Aperture Blades | 7 | 11 |
| Rounded Aperture | Yes | No |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | Canon RF | Canon RF |
| Angle of View | 84° | − |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | No |
| Focus Motor | STM | − |
| Focus Limiter | No | No |
| AF/MF Switch | Yes | No |
| Min Focus Distance | 14 cm | − |
| Max Magnification | 0.5x | 5x |
| Stabilization & Video | ||
| Optical Stabilization | Yes | No |
| Aperture Ring | No | Yes |
| Declickable Aperture | No | No |
| Parfocal | No | Yes |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $699 | $749 |
| Filter Size | 52mm | 56mm |
| Diameter | 74.4mm | 70.2mm |
| Length | 62.8mm | 121mm |
| Weight | 270g (9.5 oz) | 599g (1.32 lb) |
| Weather Sealed | Yes | No |
| Tripod Collar | No | No |
