Nikon NIKKOR Z 24-70mm f/4 S vs Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z)
The bottom line
These cover different focal lengths — the Nikon NIKKOR Z 24-70mm f/4 S is 24-70mm, the Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z) is 10-18mm — so they're not really substitutes. Pick by the field of view you actually need: the Nikon NIKKOR Z 24-70mm f/4 S for standard zoom, the Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z) for wide-angle.
Choose the Nikon NIKKOR Z 24-70mm f/4 S if…
- ✓You need more reach — it goes to 70mm vs 18mm for distant subjects, wildlife and sport.
Choose the Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z) if…
- ✓You want more light and background blur — f/2.8 is faster than f/4, better for low light and subject separation.
- ✓You shoot wide — it starts at 10mm vs 24mm for landscapes, interiors and architecture.
- ✓You value portability — at 260g (9.2 oz) it's lighter than the 500g (1.10 lb) alternative for travel and all-day carry.
Where they differ
- ›Aperture: the Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z) opens to f/2.8 vs the Nikon NIKKOR Z 24-70mm f/4 S's f/4 — more light and shallower depth-of-field.
- ›Focal range: Nikon NIKKOR Z 24-70mm f/4 S is 24-70mm, Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z) is 10-18mm — different framing and reach.
- ›Weight: the Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z) is 260g (9.2 oz) vs 500g (1.10 lb) — you'll feel the difference handheld.
Frequently asked
Is the Nikon NIKKOR Z 24-70mm f/4 S or the Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z) better?
These cover different focal lengths — the Nikon NIKKOR Z 24-70mm f/4 S is 24-70mm, the Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z) is 10-18mm — so they're not really substitutes. Pick by the field of view you actually need: the Nikon NIKKOR Z 24-70mm f/4 S for standard zoom, the Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z) for wide-angle.
Who should choose the Nikon NIKKOR Z 24-70mm f/4 S?
Choose the Nikon NIKKOR Z 24-70mm f/4 S if you need more reach — it goes to 70mm vs 18mm for distant subjects, wildlife and sport.
Who should choose the Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z)?
Choose the Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z) if you want more light and background blur — f/2.8 is faster than f/4, better for low light and subject separation. Choose it if you shoot wide — it starts at 10mm vs 24mm for landscapes, interiors and architecture. Choose it if you value portability — at 260g (9.2 oz) it's lighter than the 500g (1.10 lb) alternative for travel and all-day carry.
What is the main difference between the Nikon NIKKOR Z 24-70mm f/4 S and the Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z)?
Aperture: the Sigma 10-18mm f/2.8 DC DN Contemporary (Nikon Z) opens to f/2.8 vs the Nikon NIKKOR Z 24-70mm f/4 S's f/4 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 24-70mm | 10-18mm |
| Lens Type | Zoom | Zoom |
| Optical Elements | 14 | 13 |
| Optical Groups | 11 | 10 |
| Aperture & Iris | ||
| Maximum Aperture | f/4 | f/2.8 |
| Minimum Aperture | f/22 | f/22 |
| Aperture Blades | 7 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | APS-C |
| Lens Mount | Nikon Z | Nikon Z |
| Angle of View | 84° – 34° | 110° – 76° |
| 35mm Equivalent | − | 15-27mm |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | Stepping | HLA |
| Focus Limiter | No | No |
| AF/MF Switch | No | Yes |
| Min Focus Distance | 30 cm | 12 cm |
| Max Magnification | 0.3x | 0.28x |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | No | Yes |
| Declickable Aperture | No | Yes |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $699 | $699 |
| Filter Size | 72mm | 67mm |
| Diameter | 77.5mm | 67.2mm |
| Length | 88.5mm | 73.3mm |
| Weight | 500g (1.10 lb) | 260g (9.2 oz) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | No | No |
