Sigma Contemporary 45mm f/2.8 DG DN 45mm
A compact 215g full-frame prime with a fast internal focus system and weather sealing, this lens stands out for its versatile 45mm focal length and all-metal I Series build quality. Its f/2.8 aperture balances light gathering with a remarkably small footprint, making it a discreet everyday carry option. This lens is best for street and travel photographers who prioritize portability and tactile manual controls over maximum background separation.
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用户评价
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实测数据
Performance
Specifications
Full Specifications
Optics
| Type | Prime |
| Focal Length Min | 45 |
| Focal Length Max | 45 |
| Elements | 8 |
| Groups | 7 |
| Coating | Super Multi-Layer Coating |
Aperture
| Max Aperture | f/2.8 |
| Min Aperture | f/2.8 |
| Constant | Yes |
| Diaphragm Blades | 7 |
Build
| Mount | Sony E |
| Format | full-frame |
| Weather Sealed | Yes |
| Weight | 0.2 kg / 0.5 lbs |
| Filter Thread | 55 |
AF & Stabilization
| AF Type | stepping motor |
| Stabilization | No |
Focus
| Min Focus Distance | 240 |
| Max Magnification | 1:4 |
vs Competition
| Spec | Sigma Contemporary 45mm f/2.8 DG DN 45mm | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Nikon NIKKOR Z 17-28mm f/2.8 | Sony E PZ 16-50mm f/3.5-5.6 OSS | Panasonic LUMIX S S-R28200 | OM System M.Zuiko Digital ED 12-100mm f/4 IS PRO |
|---|---|---|---|---|---|---|
| Focal Length | 45mm | 17-70mm | 17-28mm | 16-50mm | 28-200mm | 12-100mm |
| Max Aperture | f/2.8 | f/2.8 | f/2.8 | f/3.5 | f/4 | f/4 |
| Mount | Sony E | Sony E | Nikon Z | Sony E | L-Mount | Micro Four Thirds |
| Stabilization | false | true | false | true | true | true |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 215 | 544 | 450 | 107 | 413 | 561 |
| AF Type | stepping motor | RXD | Stepping Motor | Autofocus | Autofocus | Autofocus |
| Lens Type | prime | zoom | zoom | zoom | zoom | zoom |
| Compare | Compare | Compare | Compare | Compare |
| 产品 | AF | Bokeh | Build | Macro | Optical | Aperture | Versatility | 用户口碑 | Stabilization |
|---|---|---|---|---|---|---|---|---|---|
| Sigma Contemporary 45mm f/2.8 DG DN 45mm | 87.7 | 81.2 | 91.8 | 79 | 49.3 | 83.5 | 33.6 | 58 | 37 |
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD Compare | 53.6 | 86.4 | 69.8 | 85.1 | 91.1 | 83.5 | 89.5 | 85.1 | 82.7 |
| Nikon NIKKOR Z 17-28mm f/2.8 Compare | 87.7 | 86.4 | 76.1 | 85.1 | 88.4 | 83.5 | 68 | 69.4 | 37 |
| Sony E PZ 16-50mm f/3.5-5.6 OSS Compare | 53.6 | 74.6 | 98.6 | 43.7 | 69.2 | 76.7 | 83.2 | 80.6 | 93.5 |
| Panasonic LUMIX S S-R28200 Compare | 53.6 | 77.2 | 78.4 | 74.3 | 92 | 65.4 | 95.4 | 75.4 | 99.5 |
| OM System M.Zuiko Digital ED 12-100mm f/4 IS PRO Compare | 53.6 | 63.9 | 68.6 | 57 | 96.9 | 65.4 | 96.6 | 62.4 | 96.9 |