Panasonic H-X09
Score: 96/100Sigma 18-50mm f/2.8 DC DN
Score: 90/100Rankings
The Panasonic Leica DG SUMMILUX 9mm f/1.7 is an ultra-wide-angle prime for Micro Four Thirds, delivering a fast f/1.7 aperture, exceptional sharpness, and a weather-sealed, pocket-sized package. It excels in low-light and video work, though it lacks an aperture ring and includes no hood.
The Sigma 18-50mm f/2.8 DC DN Contemporary is a compact, fast standard zoom for APS-C mirrorless cameras. It delivers sharp images, a constant bright aperture and quiet autofocus, but requires digital correction for distortion and vignetting and lacks built-in stabilization.
| Attribute | | Sigma 18-50mm f/2.8 DC DN |
|---|---|---|
| ↓ lower better | 9 mmbest | 18 mm |
9 mm | 50 mmbest | |
| ↓ lower better | 1.7 fbest | 2.8 f |
| ↓ lower better | 130 gbest | 285 g |
| ↓ lower better | 50.8 mmbest | 76.8 mm |
| ↓ lower better | 9.5 cmbest | 12.1 cm |
0.25 x | 0.357 xbest | |
12 monthsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | Sigma 18-50mm f/2.8 DC DN |
|---|---|---|
Mount & Compatibility(2) | ||
Mount Type | Micro Four Thirds | Sony E, Fujifilm X, L, Canon RF |
Autofocus Motor Type | Contrast-detect | Stepping motor |
Optical(5) | ||
Focal Length (Min) (mm) | 9 mm | 18 mm |
Focal Length (Max) (mm) | 9 mm | 50 mm |
Maximum Aperture (f-number) (f) | 1.7 f | 2.8 f |
Minimum Focus Distance (cm) | 9.5 cm | 12.1 cm |
Maximum Magnification Ratio (x) | 0.25 x | 0.357 x |
Physical(2) | ||
Weight (g) | 130 g | 285 g |
Length (mm) | 50.8 mm | 76.8 mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise its optical excellence, fast aperture, and video-friendly features such as focus-breathing suppression, while noting the missing aperture ring and slight vignetting as drawbacks.
Everyday users love the compact size, low-light capability and smooth bokeh, but miss having an aperture ring and an included hood, and some report edge softness at the widest aperture.
Professional reviewers praise the Sigma 18-50mm F2.8 DC DN as a benchmark for compact, fast standard zooms, highlighting its sharp optics, constant f/2.8 aperture, quiet STM autofocus, and macro-like close-focus capability.
Everyday users echo the experts, lauding the lens for its pocketable size, lightweight feel, fast aperture, and sharpness, while noting the need for digital correction and the absence of built-in stabilization.
“Exceptional sharpness and resolution from center to edge even at f/1.7”
“Outstanding low-light performance thanks to the f/1.7 aperture”
“Very compact and lightweight, ideal for travel and street shooting”
