Canon RF 100mm f/2.8 L Macro IS USM vs Canon RF 24mm f/1.8 Macro IS STM
Both are Canon RF mount primes for macro — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Canon RF 100mm f/2.8 L Macro IS USM | Canon RF 24mm f/1.8 Macro IS STM |
|---|---|---|
| Focal length | 100mm | 24mm |
| Max aperture | f/2.8 | f/1.8 |
| Type | prime | prime |
| Coverage | full-frame | full-frame |
| Mount | Canon RF | Canon RF |
Which should you buy?
- the Canon RF 24mm f/1.8 Macro IS STM opens wider (f/1.8) — brighter in low light and more background blur
- the Canon RF 24mm f/1.8 Macro IS STM (24mm) is wider — more in the frame for street and interiors; the Canon RF 100mm f/2.8 L Macro IS USM (100mm) is tighter — more reach and compression for portraits
Where to buy
Check the Canon RF 100mm f/2.8 L Macro IS USM price on Amazon →
Check the Canon RF 24mm f/1.8 Macro IS STM price on Amazon →
FAQ
What's the difference between the Canon RF 100mm f/2.8 L Macro IS USM and the Canon RF 24mm f/1.8 Macro IS STM?
The Canon RF 100mm f/2.8 L Macro IS USM is 100mm f/2.8 prime, full-frame; the Canon RF 24mm f/1.8 Macro IS STM is 24mm f/1.8 prime, full-frame. Both fit the Canon RF mount.
Which is better in low light, the Canon RF 100mm f/2.8 L Macro IS USM or the Canon RF 24mm f/1.8 Macro IS STM?
The Canon RF 24mm f/1.8 Macro IS STM — its f/1.8 maximum aperture lets in more light and gives more background blur than the f/2.8 of the other.
Do the Canon RF 100mm f/2.8 L Macro IS USM and Canon RF 24mm f/1.8 Macro IS STM fit the same camera?
Yes — both are Canon RF mount lenses, so they fit Canon EOS R series (full-frame R5/R6/R8) and APS-C (R7/R10/R50).
More Canon RF comparisons: Canon RF 24mm f/1.4 L VCM vs Canon RF 20mm f/1.4 L VCM · Canon RF 600mm f/11 IS STM vs Canon RF 800mm f/11 IS STM · Canon RF 100-400mm f/5.6-8 IS USM vs Canon RF-S 55-210mm f/5-7.1 IS STM · Canon RF 50mm f/1.2 L USM vs Canon RF 50mm f/1.4 L VCM · all Canon RF lenses · all comparisons