Olympus M.Zuiko 45mm f/1.8 vs OM System M.Zuiko 20mm f/1.4 PRO
Both are Micro Four Thirds mount primes for low-light — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Olympus M.Zuiko 45mm f/1.8 | OM System M.Zuiko 20mm f/1.4 PRO |
|---|---|---|
| Focal length | 45mm | 20mm |
| Max aperture | f/1.8 | f/1.4 |
| Type | prime | prime |
| Coverage | Micro Four Thirds | Micro Four Thirds |
| Mount | Micro Four Thirds | Micro Four Thirds |
Which should you buy?
- the OM System M.Zuiko 20mm f/1.4 PRO opens wider (f/1.4) — brighter in low light and more background blur
- the OM System M.Zuiko 20mm f/1.4 PRO (20mm) is wider — more in the frame for street and interiors; the Olympus M.Zuiko 45mm f/1.8 (45mm) is tighter — more reach and compression for portraits
Where to buy
Check the Olympus M.Zuiko 45mm f/1.8 price on Amazon →
Check the OM System M.Zuiko 20mm f/1.4 PRO price on Amazon →
FAQ
What's the difference between the Olympus M.Zuiko 45mm f/1.8 and the OM System M.Zuiko 20mm f/1.4 PRO?
The Olympus M.Zuiko 45mm f/1.8 is 45mm f/1.8 prime, Micro Four Thirds; the OM System M.Zuiko 20mm f/1.4 PRO is 20mm f/1.4 prime, Micro Four Thirds. Both fit the Micro Four Thirds mount.
Which is better in low light, the Olympus M.Zuiko 45mm f/1.8 or the OM System M.Zuiko 20mm f/1.4 PRO?
The OM System M.Zuiko 20mm f/1.4 PRO — its f/1.4 maximum aperture lets in more light and gives more background blur than the f/1.8 of the other.
Do the Olympus M.Zuiko 45mm f/1.8 and OM System M.Zuiko 20mm f/1.4 PRO fit the same camera?
Yes — both are Micro Four Thirds mount lenses, so they fit OM System (Olympus) and Panasonic Lumix G Micro Four Thirds bodies.
More Micro Four Thirds comparisons: OM System M.Zuiko 100-400mm f/5-6.3 IS vs Panasonic Lumix G 100-300mm f/4-5.6 II · OM System M.Zuiko 17mm f/1.8 vs Panasonic Leica DG 15mm f/1.7 · OM System M.Zuiko 40-150mm f/2.8 PRO vs OM System M.Zuiko 150-600mm f/5-6.3 IS · OM System M.Zuiko 40-150mm f/2.8 PRO vs Panasonic Leica DG 50-200mm f/2.8-4 · all Micro Four Thirds lenses · all comparisons