OM System M.Zuiko Digital ED 12mm f/2.0 vs Panasonic LEICA DG NOCTICRON 42.5mm f/1.2
The bottom line
These cover different focal lengths — the OM System M.Zuiko Digital ED 12mm f/2.0 is 12mm, the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 is 42mm — so they're not really substitutes. Pick by the field of view you actually need: the OM System M.Zuiko Digital ED 12mm f/2.0 for wide-angle, the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 for short-telephoto / portrait.
Choose the OM System M.Zuiko Digital ED 12mm f/2.0 if…
- ✓You shoot wide — it starts at 12mm vs 42mm for landscapes, interiors and architecture.
- ✓You value portability — at 130g (4.6 oz) it's lighter than the 425g (15.0 oz) alternative for travel and all-day carry.
Choose the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 if…
- ✓You want more light and background blur — f/1.2 is faster than f/2, better for low light and subject separation.
- ✓You need more reach — it goes to 42mm vs 12mm for distant subjects, wildlife and sport.
- ✓You shoot handheld or on an unstabilised body — it has optical stabilisation, the other doesn't.
- ✓You work outdoors — it's weather-sealed against dust and moisture; the other isn't.
Where they differ
- ›Aperture: the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 opens to f/1.2 vs the OM System M.Zuiko Digital ED 12mm f/2.0's f/2 — more light and shallower depth-of-field.
- ›Focal range: OM System M.Zuiko Digital ED 12mm f/2.0 is 12mm, Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 is 42mm — different framing and reach.
- ›Price: the OM System M.Zuiko Digital ED 12mm f/2.0 is $499, $100 under the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2.
- ›Stabilisation: only the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 has optical stabilisation — steadier handheld shots, especially on bodies without IBIS.
- ›Weight: the OM System M.Zuiko Digital ED 12mm f/2.0 is 130g (4.6 oz) vs 425g (15.0 oz) — you'll feel the difference handheld.
- ›Durability: the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 is weather-sealed; the other isn't.
Frequently asked
Is the OM System M.Zuiko Digital ED 12mm f/2.0 or the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 better?
These cover different focal lengths — the OM System M.Zuiko Digital ED 12mm f/2.0 is 12mm, the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 is 42mm — so they're not really substitutes. Pick by the field of view you actually need: the OM System M.Zuiko Digital ED 12mm f/2.0 for wide-angle, the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 for short-telephoto / portrait.
Who should choose the OM System M.Zuiko Digital ED 12mm f/2.0?
Choose the OM System M.Zuiko Digital ED 12mm f/2.0 if you shoot wide — it starts at 12mm vs 42mm for landscapes, interiors and architecture. Choose it if you value portability — at 130g (4.6 oz) it's lighter than the 425g (15.0 oz) alternative for travel and all-day carry.
Who should choose the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2?
Choose the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 if you want more light and background blur — f/1.2 is faster than f/2, better for low light and subject separation. Choose it if you need more reach — it goes to 42mm vs 12mm 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 work outdoors — it's weather-sealed against dust and moisture; the other isn't.
What is the main difference between the OM System M.Zuiko Digital ED 12mm f/2.0 and the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2?
Aperture: the Panasonic LEICA DG NOCTICRON 42.5mm f/1.2 opens to f/1.2 vs the OM System M.Zuiko Digital ED 12mm f/2.0's f/2 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 12mm | 42mm |
| Lens Type | Prime | Prime |
| Optical Elements | 8 | 14 |
| Optical Groups | 7 | 11 |
| Aperture & Iris | ||
| Maximum Aperture | f/2 | f/1.2 |
| Minimum Aperture | f/16 | f/16 |
| Aperture Blades | 7 | 9 |
| Rounded Aperture | No | Yes |
| Coverage & Angle | ||
| Format Coverage | Micro Four Thirds | Micro Four Thirds |
| Lens Mount | Micro Four Thirds | Micro Four Thirds |
| Angle of View | 84° | 29° |
| 35mm Equivalent | 24-24mm | 85-85mm |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | Stepping | Stepping |
| Focus Limiter | No | No |
| AF/MF Switch | No | No |
| Min Focus Distance | 20 cm | 50 cm |
| Max Magnification | 0.1x | 0.1x |
| Stabilization & Video | ||
| Optical Stabilization | No | Yes |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $499 | $599 |
| Filter Size | 46mm | 67mm |
| Diameter | 56mm | 74mm |
| Length | 43.5mm | 73mm |
| Weight | 130g (4.6 oz) | 425g (15.0 oz) |
| Weather Sealed | No | Yes |
| Tripod Collar | No | No |
