Sigma 10-18mm f/2.8 DC DN C
Summary
The Sigma 10-18mm f/2.8 DC DN C is a strong optical performer — a ultra-wide zoom (15mm equivalent) with f/2.8 maximum aperture. The lens is priced at approximately ~$1000 USD. Please check the official product page for sample images, manuals, and firmware updates.
Genre Suitability
- Excellent for: Landscape, Travel, Sport, Wildlife
- Adequate for: Street, Portrait, Macro
- Avoid for: Architecture
Strengths
- Good overall sharpness
- Well-controlled aberrations
- Good flare resistance
- Weather-sealed construction
- Fast linear motor autofocus
Weaknesses
- Noticeable distortion visible in architectural subjects
- Heavy vignetting wide open (2+ stops in corners)
- Above-average residual vignetting stopped down
Specifications 19/20
| Optical construction | 13 elements in 10 groups (4 aspherical, 3 FLD, 1 SLD) |
| Coating | Super Multi-Layer Coating |
| Focal length | 10-18mm |
| Max aperture | f/2.8 |
| Sweet spot | f/5.6 |
| Aperture blades | 7 (circular) |
| Sunstar points | 14 (soft — circular blades) |
| Max magnification | 0.25x |
| Min focus distance | 116mm |
| AF motor | LM |
| OIS | No |
| Weather sealed | Yes |
| Aperture ring | No |
| Clickless aperture | — |
| Focus ring | Yes |
| Focus by wire | Yes |
| Distance scale | No |
| Rotating front | No |
| Tripod mount | No |
| Weight | 260g |
| Diameter | 72.2mm |
| Length | 62mm |
| Filter thread | 67mm |
| Year | 2024 |
Optical Quality 12/14
| Center (wide open) | 1.5 |
| Corner (wide open) | 1.0 |
| Center (stopped) | 2.0 |
| Corner (stopped) | 1.5 |
| Astigmatism | 1.5 |
| Longitudinal CA | 1.5 |
| Lateral CA | 2.0 |
| Distortion | 0.5 |
| Vignetting (wide open) | 0.0 |
| Vignetting (stopped) | 0.5 |
| Bokeh | 1.0 |
| Flare resistance | 1.5 |
Sharpness
- Good center sharpness wide open
- Acceptable corner sharpness wide open
- Outstanding center resolution stopped down
- Good corner-to-corner sharpness stopped down
Aberrations
- Well-controlled longitudinal CA
- Negligible lateral chromatic aberration
- Well-controlled astigmatism
Rendering
- Acceptable bokeh rendering
- Heavy vignetting wide open (2+ stops in corners)
- Above-average residual vignetting stopped down
- Good flare resistance
Distortion
- Noticeable distortion visible in architectural subjects
All optical scores are based on lab measurements and field tests from trusted review sources. For details on how we score lenses, see our scoring methodology.
Genre Fit
✓ Landscape Photography 4/5
Landscape Photography prioritizes corner-to-corner sharpness at stopped-down apertures and good flare resistance.
- Good corner-to-corner sharpness stopped down
- Outstanding center resolution stopped down
- Noticeable distortion visible in architectural subjects
- Negligible lateral chromatic aberration
- Well-controlled longitudinal CA
- Above-average residual vignetting stopped down
- Good flare resistance
- Well-controlled astigmatism
✗ Architecture Photography 2/5
Architecture Photography prioritizes geometric precision with minimal distortion and even corner sharpness.
- Good corner-to-corner sharpness stopped down
- Outstanding center resolution stopped down
- Noticeable distortion visible in architectural subjects
- Negligible lateral chromatic aberration
- Above-average residual vignetting stopped down
- Good flare resistance
~ Street Photography 3/5
Street Photography prioritizes sharp stopped-down performance and a fast enough aperture for low light.
- Outstanding center resolution stopped down
- Slow f/2.8 aperture
- Good center sharpness wide open
- Good flare resistance
- Well-controlled longitudinal CA
✓ Travel Photography 4/5
Travel Photography prioritizes balanced image quality in a lightweight package.
- Outstanding center resolution stopped down
- Lightweight at 260g
- Slow f/2.8 aperture
- Good flare resistance
- Well-controlled longitudinal CA
~ Portrait Photography 3/5
Portrait Photography prioritizes smooth bokeh and critical center sharpness wide open for subject isolation.
- Acceptable bokeh rendering
- Good center sharpness wide open
- Well-controlled longitudinal CA
- Heavy vignetting wide open (2+ stops in corners)
✓ Sport Photography 4/5
Sport Photography prioritizes sharp wide-open center performance to freeze action at fast shutter speeds.
- Good center sharpness wide open
- Slow f/2.8 aperture
- Well-controlled longitudinal CA
- Negligible lateral chromatic aberration
✓ Wildlife Photography 4/5
Wildlife Photography prioritizes center sharpness across apertures for distant subjects.
- Good center sharpness wide open
- Outstanding center resolution stopped down
- Slow f/2.8 aperture
- Well-controlled longitudinal CA
- Negligible lateral chromatic aberration
~ Macro Photography 3/5
Macro Photography prioritizes stopped-down center sharpness and high magnification for close-up detail.
- Outstanding center resolution stopped down
- Low magnification (0.25x)
- Noticeable distortion visible in architectural subjects
- Negligible lateral chromatic aberration
- Well-controlled longitudinal CA
- Acceptable bokeh rendering