Nikon NIKKOR Z vs Sigma
Updated July 2026 — Nikon NIKKOR Z wins on price, Sigma wins on weight and aperture.
The Nikon NIKKOR Z 40mm f/2 offers great value and versatility, while the Sigma 30mm F1.4 Contemporary excels in low-light performance and image quality.
Why Nikon NIKKOR Z is better
Price
Nikon lens is $276.95, significantly cheaper than Sigma's $419.00.
Weight
Nikon lens is lighter, making it more portable.
Focal Length
Nikon offers a versatile 40mm equivalent on DX-format cameras.
Why Sigma is better
Aperture
Sigma has a larger maximum aperture of F1.4 for better low-light performance.
Autofocus
Sigma features a stepping motor for fast and accurate autofocus.
Image Quality
Sigma is known for high image quality and smooth bokeh.
Overall score
Specifications
| Spec | Nikon NIKKOR Z | Sigma |
|---|---|---|
| Max Aperture | f/2 | f/1.4 |
| Focal Length | 40mm | 30mm |
| Compatibility | Nikon Z | Sony E |
| Bokeh Blades | 9 | 9 |
| Autofocus Type | Fast & Quiet | Stepping Motor |
Dimension comparison
Overview of the Nikon NIKKOR Z 40mm f/2 and Sigma 30mm F1.4 Contemporary
The Nikon NIKKOR Z 40mm f/2 is priced at $276.95, making it approximately 17% cheaper than the Sigma 30mm F1.4 Contemporary, which retails for $419.00. Both lenses cater to different camera systems and offer unique features that appeal to varying photography styles. The Nikon lens is designed for Z series mirrorless cameras, while the Sigma lens is compatible with Sony E-mount systems, showcasing the diversity in lens options available to photographers today.
Design and Build Quality
Both the Nikon NIKKOR Z 40mm f/2 and Sigma 30mm F1.4 Contemporary emphasize a compact design, but their dimensions and build quality serve different user preferences. The Nikon lens is a lightweight prime lens, making it ideal for street work and travel photography. In contrast, the Sigma lens, while also compact, is tailored for high performance with a focus on image quality. The Sigma features a stepping motor for fast autofocus, which is particularly beneficial for video work, adding an extra layer of versatility to its build.
Aperture and Low-Light Performance
The Sigma 30mm F1.4 Contemporary boasts a larger maximum aperture of F1.4 compared to the Nikon NIKKOR Z 40mm f/2’s aperture of F2. This makes the Sigma lens more suitable for low-light conditions, allowing for more light to enter the camera and enabling photographers to achieve brighter images even in dim environments. The larger aperture also contributes to a shallower depth of field, enhancing the ability to create striking background blur, which is crucial for portrait photography.
Autofocus Capabilities
Autofocus performance distinguishes these two lenses, with the Nikon NIKKOR Z 40mm f/2 offering a fast and quiet autofocus system that suppresses focus breathing. This feature is particularly useful for video recording, as it allows for smooth and unobtrusive focus transitions. On the other hand, the Sigma 30mm F1.4 Contemporary also includes a stepping motor that provides quick and accurate autofocus, making it an excellent choice for both stills and video. The choice between these lenses may come down to specific autofocus preferences, especially for those who prioritize video work.
Image Quality and Bokeh
When it comes to image quality, both lenses are designed to deliver outstanding results, but they achieve this in different ways. The Nikon NIKKOR Z 40mm f/2 features a 9-blade rounded diaphragm that enhances its bokeh effects, creating a pleasing background separation ideal for portraits. The Sigma 30mm F1.4 Contemporary also includes nine rounded aperture blades, promising high image quality and smooth bokeh. However, the Nikon lens may have an edge in producing more natural bokeh due to its design tailored for Z series cameras.
Versatility and Use Cases
The versatility of each lens makes them suitable for different shooting scenarios. The Nikon NIKKOR Z 40mm f/2 offers a versatile 40mm focal length, ideal for street work, landscapes, and interiors, while providing a field of view equivalent to 60mm on DX-format cameras. This makes it a great all-around lens for various types of photography. Conversely, the Sigma 30mm F1.4 Contemporary is particularly advantageous for low-light situations and creative depth of field effects, making it a strong candidate for portraits and artistic shots.
Price Comparison
In terms of pricing, the Nikon NIKKOR Z 40mm f/2 is significantly more affordable at $276.95 compared to the Sigma 30mm F1.4 Contemporary, which is priced at $419.00. This roughly 17% difference in price may influence budget-conscious photographers who are looking for quality without breaking the bank. The lower price point of the Nikon lens does not necessarily mean a compromise in quality, as it still offers a range of desirable features for its target audience.
Which should you buy?
Choosing between the Nikon NIKKOR Z 40mm f/2 and the Sigma 30mm F1.4 Contemporary ultimately comes down to camera compatibility and specific photographic needs. If you are using a Nikon Z series mirrorless camera and prefer a more affordable option with exceptional autofocus and versatile focal length, the Nikon lens is a fantastic choice. On the other hand, if you require a lens for a Sony E-mount system and prioritize low-light performance and creative depth of field effects, the Sigma lens may be worth the higher investment. Each lens serves its purpose well, catering to unique shooting styles and preferences.

