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SIRUI Night Walker vs Tamron 70-

Updated July 2026 — Tamron 70- leads on weight and focal length.

The SIRUI Night Walker offers exceptional low-light performance and affordability, while the Tamron lens provides versatility and autofocus features.

Why SIRUI Night Walker is better

Price

SIRUI lens is $720 cheaper

Aperture

T1.2 aperture for low-light

Weight

SIRUI is lighter at 500g

Why Tamron 70- is better

Versatility

Tamron offers a zoom range of 70-180mm

Autofocus

Tamron has high-speed autofocus

Weather Resistance

Tamron features moisture-resistant construction

Overall score

SIRUI Night Walker
85
Tamron 70-
90

Specifications

SpecSIRUI Night WalkerTamron 70-
Price$279.00$999.00
Max ApertureT1.2F2.8
Focal Length35mm70-180mm
AutofocusManualYes
Weight500g30.2 oz

Dimension comparison

SIRUI Night WalkerTamron 70-

Price Comparison

The SIRUI Night Walker 35mm S35 Manual Focus Cine Lens is priced at $279.00, while the Tamron 70-180mm F/2.8 Di III VC VXD G2 is significantly higher at $999.00. This marks a price difference of $720.00, making the SIRUI lens about 72% cheaper than the Tamron lens. For budget-conscious filmmakers and photographers, the lower price of the SIRUI lens makes it an attractive option, especially for those who may not require the versatility of a zoom lens.

Aperture and Low-Light Performance

The SIRUI Night Walker features an impressive T1.2 large aperture, ideal for low-light filming scenarios. This wide aperture allows users to capture clear and expressive images without the need for high ISO settings, ensuring reduced noise in night scenes. On the other hand, the Tamron lens has a constant aperture of F/2.8 throughout its zoom range. While this is still quite good, it does not match the low-light capabilities of the SIRUI lens. For filmmakers focused on shooting in dim environments, the SIRUI offers a distinct advantage.

Focal Length and Versatility

The SIRUI Night Walker has a fixed focal length of 35mm, which is equivalent to a 49mm full-frame lens—great for portraiture and documentary work. In contrast, the Tamron offers a zoom range of 70-180mm, allowing for much greater versatility in framing and composition. This zoom capability is particularly beneficial for wildlife photography or events where the subject's distance may vary dramatically. Thus, if you require a lens that can adapt to various shooting scenarios, the Tamron lens would be the more suitable choice.

Autofocus and Manual Focus

The SIRUI Night Walker is a manual focus lens, which can provide precise control for filmmakers who prefer to have complete authority over focusing. However, this can be a drawback for those who need quick autofocus solutions. The Tamron, equipped with VXD technology, offers high-speed and high-precision autofocus, making it more user-friendly in dynamic shooting environments. If your work often involves moving subjects or changing scenes, the autofocus feature of the Tamron lens will likely enhance your shooting experience.

Build Quality and Portability

Constructed with a sturdy aluminum cine housing, the SIRUI Night Walker is designed to be both robust and lightweight, weighing around 500 grams. This makes it an excellent choice for those who prioritize portability without sacrificing durability. The Tamron lens, on the other hand, weighs 30.2 ounces, making it heavier and potentially less convenient for extended handheld shooting sessions. For filmmakers and photographers who travel frequently or shoot on location, the compact and lightweight design of the SIRUI lens is a significant advantage.

Optical Performance

The SIRUI Night Walker is noted for its outstanding optical performance, achieving sharpness and minimal focus breathing even at maximum aperture. It is built with 11 elements in 10 groups, designed to control aberrations effectively. The Tamron lens also boasts a revamped optical design to maintain high image quality across its zoom range. However, the specific claims of superior sharpness at T1.2 make the SIRUI lens particularly appealing for those focused on achieving cinematic quality in their footage.

Weather Resistance and Durability

While the SIRUI lens does not explicitly mention weather resistance, the Tamron 70-180mm features moisture-resistant construction along with a fluorine coating. This makes the Tamron lens better suited for outdoor photography in challenging weather conditions. If you often find yourself shooting in unpredictable environments, the Tamron's durability may be a decisive factor in your choice.

Which should you buy?

Choosing between the SIRUI Night Walker 35mm S35 Manual Focus Cine Lens and the Tamron 70-180mm F/2.8 Di III VC VXD G2 depends largely on your specific needs. If budget is a primary concern, the SIRUI lens offers excellent value at $279.00, with a strong emphasis on low-light performance and optical quality. However, if you require versatility, autofocus capabilities, and weather resistance, the Tamron lens, priced at $999.00, justifies its higher cost with features that cater to a broader range of shooting scenarios. Ultimately, the decision hinges on whether you prioritize affordability and manual control over versatility and advanced features.