Nikon NIKKOR Z 24- vs Sigma 18-
Updated July 2026 — Nikon NIKKOR Z 24- leads on price and build.
The Nikon NIKKOR Z 24-70mm f/2.8 S II excels in professional features and performance, while the Sigma 18-50mm F2.8 DC DN Contemporary offers great value for casual photographers.
Why Nikon NIKKOR Z 24- is better
Optical Quality
Superior sharpness and bokeh
Autofocus
5x faster and quieter autofocus
Build Quality
Dust and drip resistant design
Why Sigma 18- is better
Price
Significantly lower cost
Portability
Lightweight and compact design
Versatility
Wide focal range for general use
Overall score
Specifications
| Spec | Nikon NIKKOR Z 24- | Sigma 18- |
|---|---|---|
| Aperture | f/2.8 | f/2.8 |
| Focal Length | 24-70mm | 18-50mm |
| Zoom Type | Internal | External |
| Close Focus | 9.5 inches | Not specified |
| Compatibility | Nikon Z | Sony E |
Dimension comparison
Overview of the Nikon NIKKOR Z 24-70mm f/2.8 S II and Sigma 18-50mm F2.8 DC DN Contemporary
The Nikon NIKKOR Z 24-70mm f/2.8 S II is a premium zoom lens priced at $2,796.95, while the Sigma 18-50mm F2.8 DC DN Contemporary offers a budget-friendly alternative at $587.00. This substantial price difference of about 79% highlights the variations in target audience and use cases for each lens.
The NIKKOR Z lens features an internal zoom mechanism, enhancing stability and performance, especially suitable for professional use. In contrast, the Sigma lens prioritizes compactness and versatility, making it appealing for casual photographers and those looking for an everyday lens.
Build Quality and Design
In terms of build quality, the Nikon NIKKOR Z 24-70mm f/2.8 S II is engineered for durability with dust- and drip-resistant performance. Its internal zoom design prevents changes in center of gravity, making it ideal for gimbal use. This lens embodies Nikon's commitment to professional-grade optics.
On the other hand, the Sigma 18-50mm F2.8 DC DN Contemporary is designed to be small and lightweight, making it convenient for travel and everyday photography. While it may not match the ruggedness of the Nikon lens, it excels in portability without sacrificing optical performance.
Optical Performance
The Nikon NIKKOR Z 24-70mm f/2.8 S II boasts a constant f/2.8 aperture, which is crucial for achieving beautiful bokeh and excellent low-light performance. The lens also benefits from a new optical formula that enhances sharpness and anti-glare characteristics, making it ideal for professional photographers.
Conversely, the Sigma 18-50mm F2.8 DC DN Contemporary also features a constant f/2.8 aperture, ensuring good low-light capabilities. It is designed for superb optical quality and in-camera aberration correction, making it a strong contender for enthusiasts seeking a versatile zoom lens without the premium price tag.
Autofocus Capabilities
Autofocus performance is a critical aspect for both lenses, especially for videographers. The Nikon NIKKOR Z 24-70mm f/2.8 S II has an autofocus system that is five times faster and 50% quieter than its predecessor, which is particularly beneficial for video recording where noise can be an issue.
In contrast, the Sigma 18-50mm F2.8 DC DN Contemporary does not specify its autofocus speed, but it is designed to deliver excellent optical performance with advanced technology. While it may not have the same high-speed capabilities as the Nikon, it still offers reliable autofocus for most photography needs.
Versatility and Usability
The versatility of the Nikon NIKKOR Z 24-70mm f/2.8 S II makes it a valuable tool for various photography styles, from portrait to landscape. Its close focus capability of 9.5 inches at 24mm and a maximum magnification of 0.32x at 70mm allows for creative compositions, providing professionals with the flexibility they need.
Meanwhile, the Sigma 18-50mm F2.8 DC DN Contemporary offers a versatile focal range from 18mm to 50mm, making it suitable for wide-angle shots and general photography. This lens excels in usability, particularly for those who prefer a compact option that can cover a range of shooting scenarios without the bulk of larger lenses.
Target Audience
The intended audience for the Nikon NIKKOR Z 24-70mm f/2.8 S II is clearly professional photographers and videographers who demand high performance and reliability. At a price of $2,796.95, it caters to those who require the best optical quality and advanced features in demanding environments.
Conversely, the Sigma 18-50mm F2.8 DC DN Contemporary is designed for amateur photographers and enthusiasts looking for an affordable yet capable lens. Priced at $587.00, it appeals to those who want a versatile lens without breaking the bank, making it an attractive option for everyday use.
Customer Considerations
When choosing between these two lenses, potential buyers should consider their specific needs and budget. The Nikon NIKKOR Z 24-70mm f/2.8 S II offers professional-level features and performance, justifying its high price point, while the Sigma 18-50mm F2.8 DC DN Contemporary provides solid performance at a fraction of the cost.
Additionally, the Nikon lens is compatible with various Nikon Z-series cameras, while the Sigma lens is tailored for Sony E-mount cameras. This compatibility can be a deciding factor for photographers based on their existing gear.
Which should you buy?
In conclusion, the choice between the Nikon NIKKOR Z 24-70mm f/2.8 S II and the Sigma 18-50mm F2.8 DC DN Contemporary ultimately depends on your budget and photographic needs. If you're a professional seeking top-tier performance and advanced features, the Nikon lens is worth the investment. However, if you're an enthusiast or an amateur photographer looking for a versatile and compact lens that delivers excellent quality without a hefty price tag, the Sigma lens is an outstanding option.

