OM SYSTEM Olympus M.Zuiko Digital 40- vs SIRUI Night Walker
Updated July 2026 — OM SYSTEM Olympus M.Zuiko Digital 40- wins on focal length and aperture, SIRUI Night Walker wins on weight and length.
The OM SYSTEM lens offers great value for photographers, while the SIRUI lens excels in low-light performance for videographers.
Why OM SYSTEM Olympus M.Zuiko Digital 40- is better
Price
OM SYSTEM lens is significantly cheaper.
Autofocus
OM SYSTEM lens has faster autofocus.
Zoom Range
OM SYSTEM lens offers a versatile zoom range.
Why SIRUI Night Walker is better
Aperture
SIRUI lens has a larger T1.2 aperture.
Build Quality
SIRUI lens has a robust aluminum housing.
Optical Performance
SIRUI lens provides superior optical performance.
Overall score
Specifications
| Spec | OM SYSTEM Olympus M.Zuiko Digital 40- | SIRUI Night Walker |
|---|---|---|
| Max Aperture | F4-5.6 | T1.2 |
| Focal Length | 40-150mm | 35mm |
| Autofocus | Yes | No |
| Build Material | Plastic | Aluminum |
| Image Stabilization | No | No |
Dimension comparison
Overview of the Lenses
When comparing the OM SYSTEM Olympus M.Zuiko Digital 40-150mm F4.0-5.6 R Silver and the SIRUI Night Walker 35mm S35 Manual Focus Cine Lens, it's clear that each lens serves distinct purposes. The OM SYSTEM lens is priced at $175.99, while the SIRUI lens is considerably more expensive at $279.00, making it about 58% pricier. Understanding their functionalities can help photographers and videographers choose the right tool for their needs.
Design and Build Quality
The OM SYSTEM lens features a portable design that is ideal for photographers on the go. Its sleek silver finish adds a touch of elegance, while its relatively lightweight construction makes it easy to handle. In contrast, the SIRUI Night Walker lens boasts a robust aluminum cine housing, which offers both sturdiness and portability. Weighing around 500 grams, it is designed for comfort during long filming sessions. While both lenses are well-built, the choice between them may depend on whether you prioritize a lightweight travel lens or a durable cine lens.
Optical Performance
Optical performance is a crucial factor when choosing a lens. The OM SYSTEM lens has a focal length range of 40-150mm, providing versatility for various shooting situations. It features a maximum aperture of F4-5.6, which is decent for everyday photography but may not excel in low-light conditions. On the other hand, the SIRUI Night Walker lens offers an impressive T1.2 large aperture, making it particularly well-suited for low-light filming. This allows users to capture clear, expressive footage without needing to push the ISO too high, offering a significant advantage for filmmakers.
Focusing Mechanism
Focusing capabilities differentiate these two lenses significantly. The OM SYSTEM lens utilizes High-Speed Imager AF (MSC) for quick and efficient autofocus, which is beneficial for capturing dynamic scenes or fast-moving subjects. In contrast, the SIRUI Night Walker lens features a manual focus mechanism, which allows for precise control over focus, ideal for cinematic shots where depth of field and focus pulling are critical. This difference may appeal to different user bases; those who prefer auto-focus will lean towards the OM SYSTEM, while cine enthusiasts may find the SIRUI lens more suitable.
Use Cases
The intended use cases for each lens vary significantly. The OM SYSTEM lens is designed for Olympus and Panasonic Micro Four Thirds cameras, making it an excellent choice for photographers who require a versatile zoom lens for portraits, landscapes, and general photography. Its focal length allows for a range of compositions without needing to change lenses frequently. Conversely, the SIRUI Night Walker lens is tailored for E mount cameras and excels in documentary, humanity, and portrait filming. Its fast T1.2 aperture enhances creative possibilities, particularly in low light, making it a favorite among videographers.
Price Comparison
The price difference between these two lenses is notable, with the OM SYSTEM lens retailing at $175.99 and the SIRUI lens at $279.00. This makes the OM SYSTEM lens about 37% cheaper, which could be a significant factor for budget-conscious buyers or those who don't require the specialized features of the SIRUI lens. The lower price point of the OM SYSTEM lens does not compromise its quality, making it an attractive option for those needing a reliable zoom lens without breaking the bank.
Aesthetic Appeal
Aesthetic design can also play a role in the decision-making process. The OM SYSTEM lens features a classic silver finish, which many photographers find appealing and elegant. Its design complements various camera bodies, adding to the visual appeal of the setup. Meanwhile, the SIRUI Night Walker lens comes in two color options: classic black and fashionable metal gray. Both designs emphasize a premium look, which is appealing for professional use and can enhance the overall aesthetic of a film set.
Which should you buy?
The decision between the OM SYSTEM Olympus M.Zuiko Digital 40-150mm F4.0-5.6 R Silver and the SIRUI Night Walker 35mm S35 Manual Focus Cine Lens ultimately depends on your specific needs and shooting style. If you are a photographer looking for a versatile zoom lens at a more budget-friendly price, the OM SYSTEM lens is an excellent choice. However, if you are a videographer seeking superior low-light performance and manual control for cinematic projects, the SIRUI Night Walker lens is worth the investment. Each lens has distinct advantages that cater to different photographic and filming styles, so choose the one that best aligns with your creative vision.

