Panasonic Leica DG Vario-Summilux H-X1025 10-25mm
Sigma Art 24-70mm f/2.8 DG DN II
What Buyers Say
Panasonic Leica DG Vario-Summilux H-X1025 10-25mm
The Leica 10-25mm F1.7 is widely praised for its exceptional sharpness, beautiful bokeh, and robust build quality, making it a top choice for both photography and video on Micro Four Thirds cameras. Users highlight its constant f1.7 aperture, smooth manual focus clutch, and click-less aperture ring as standout features. However, it is noted as large and heavy for the system, with a high price and no optical stabilization, and some report autofocus hunting in video mode. Despite these drawbacks, most consider it a spectacular lens that delivers uncompromising image quality.
Pros
- Exceptional sharpness at all focal lengths
- Beautiful bokeh
- Constant f1.7 aperture
- Robust build quality
- Smooth manual focus clutch
Cons
- Large and heavy for MFT system
- High price
- No optical stabilization
- Autofocus hunts in video mode
- Front-heavy on smaller bodies
Sigma Art 24-70mm f/2.8 DG DN II
The Sigma 24-70mm f/2.8 Art lens receives largely positive feedback for its sharp optics, solid build, and excellent value compared to OEM alternatives. Many users praise its image quality, especially in the center, and appreciate the included image stabilization. However, some reviewers report inconsistent autofocus, requiring micro-adjustments or the USB dock for calibration, and note that the lens is significantly heavy. A few copies exhibited soft corners or front/back focus issues.
Pros
- Sharp optics
- Solid build quality
- Great value for money
- Effective image stabilization (OS)
- Fast and quiet autofocus
Cons
- Heavy weight
- Inconsistent autofocus
- Soft corners at some focal lengths
- Needs micro-adjustment or USB dock for calibration
- Front/back focus issues on some copies
Scores
Specifications
| Panasonic Leica DG Vario-Summilux H-X1025 10-25mm | Sigma Art 24-70mm f/2.8 DG DN II | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 10 mm | 24 mm |
| Focal Length Max | 25 mm | 70 mm |
| Elements | 17 | 19 |
| Groups | 12 | 15 |
| Aspherical Elements | 3 | 4★ |
| ED Elements | 4★ | 3 |
| Coating | UHR | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/1.7 | f/22 |
| Min Aperture | f/1.7 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 9 | 9 |
| Build | ||
| Mount | Micro Four Thirds | Sony E |
| Format | micro-four-thirds | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.54 kg★ | 1.02 kg |
| Filter Thread | 77 mm | 82 mm |
| AF & Stabilization | ||
| AF Type | inner focus drive system | HSM |
| Stabilization | ✗ | ✓★ |
| Stabilization Stops | — | 4 stops★ |
| Focus | ||
| Min Focus Distance | 280 mm | 170 mm★ |
| Max Magnification | 0.14x | 1:2.7★ |
Pros & Cons
Panasonic Leica DG Vario-Summilux H-X1025 10-25mm
- Strong optical (96th percentile)96th %ile
- Strong bokeh (96th percentile)96th %ile
- Strong aperture (96th percentile)96th %ile
- Strong versatility (78th percentile)
- Below average stabilization (35th percentile)
Sigma Art 24-70mm f/2.8 DG DN II
- Strong optical (98th percentile)98th %ile
- Strong stabilization (93rd percentile)93rd %ile
- Strong macro (86th percentile)86th %ile
- Strong social proof (81st percentile)81st %ile
- Below average aperture (21st percentile)
- Below average bokeh (25th percentile)
Pricing
Sigma Art 24-70mm f/2.8 DG DN II offers 1.5x better value for money
Verdict
Scores 72 overall, wins 6 of 9 usage categories and 2 of 22 specs.
