Panasonic LEICA DG SUMMILUX 15mm f/1.7 vs Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH.
The bottom line
These cover different focal lengths — the Panasonic LEICA DG SUMMILUX 15mm f/1.7 is 15mm, the Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH. is 25mm — so they're not really substitutes. Pick by the field of view you actually need: the Panasonic LEICA DG SUMMILUX 15mm f/1.7 for wide-angle, the Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH. for standard.
Choose the Panasonic LEICA DG SUMMILUX 15mm f/1.7 if…
- ✓You shoot wide — it starts at 15mm vs 25mm for landscapes, interiors and architecture.
- ✓You value portability — at 115g (4.1 oz) it's lighter than the 200g (7.1 oz) alternative for travel and all-day carry.
Choose the Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH. if…
- ✓You want more light and background blur — f/1.4 is faster than f/1.7, better for low light and subject separation.
- ✓You need more reach — it goes to 25mm vs 15mm for distant subjects, wildlife and sport.
Where they differ
- ›Aperture: the Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH. opens to f/1.4 vs the Panasonic LEICA DG SUMMILUX 15mm f/1.7's f/1.7 — more light and shallower depth-of-field.
- ›Focal range: Panasonic LEICA DG SUMMILUX 15mm f/1.7 is 15mm, Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH. is 25mm — different framing and reach.
- ›Price: the Panasonic LEICA DG SUMMILUX 15mm f/1.7 is $499, $100 under the Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH..
- ›Weight: the Panasonic LEICA DG SUMMILUX 15mm f/1.7 is 115g (4.1 oz) vs 200g (7.1 oz) — you'll feel the difference handheld.
Frequently asked
Is the Panasonic LEICA DG SUMMILUX 15mm f/1.7 or the Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH. better?
These cover different focal lengths — the Panasonic LEICA DG SUMMILUX 15mm f/1.7 is 15mm, the Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH. is 25mm — so they're not really substitutes. Pick by the field of view you actually need: the Panasonic LEICA DG SUMMILUX 15mm f/1.7 for wide-angle, the Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH. for standard.
Who should choose the Panasonic LEICA DG SUMMILUX 15mm f/1.7?
Choose the Panasonic LEICA DG SUMMILUX 15mm f/1.7 if you shoot wide — it starts at 15mm vs 25mm for landscapes, interiors and architecture. Choose it if you value portability — at 115g (4.1 oz) it's lighter than the 200g (7.1 oz) alternative for travel and all-day carry.
Who should choose the Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH.?
Choose the Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH. if you want more light and background blur — f/1.4 is faster than f/1.7, better for low light and subject separation. Choose it if you need more reach — it goes to 25mm vs 15mm for distant subjects, wildlife and sport.
What is the main difference between the Panasonic LEICA DG SUMMILUX 15mm f/1.7 and the Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH.?
Aperture: the Panasonic LEICA DG SUMMILUX 25mm f/1.4 ASPH. opens to f/1.4 vs the Panasonic LEICA DG SUMMILUX 15mm f/1.7's f/1.7 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 15mm | 25mm |
| Lens Type | Prime | Prime |
| Optical Elements | 9 | 9 |
| Optical Groups | 7 | 7 |
| Aperture & Iris | ||
| Maximum Aperture | f/1.7 | f/1.4 |
| Minimum Aperture | f/16 | f/16 |
| Aperture Blades | 7 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Micro Four Thirds | Micro Four Thirds |
| Lens Mount | Micro Four Thirds | Micro Four Thirds |
| Angle of View | 72° | 47° |
| 35mm Equivalent | 30-30mm | 50-50mm |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | Stepping | Stepping |
| Focus Limiter | No | No |
| AF/MF Switch | No | No |
| Min Focus Distance | 20 cm | 30 cm |
| Max Magnification | 0.1x | 0.11x |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $499 | $599 |
| Filter Size | 46mm | 46mm |
| Diameter | 57.5mm | 60.4mm |
| Length | 36mm | 50mm |
| Weight | 115g (4.1 oz) | 200g (7.1 oz) |
| Weather Sealed | No | No |
| Tripod Collar | No | No |
