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SIRUI vs Tamron

Updated July 2026 — SIRUI wins on weight and length, Tamron wins on focal length and field of view.

Winner

The SIRUI 20mm T1.8 lens excels in cinematic features, while the Tamron 24mm F/2.8 offers great value for general photography.

Why SIRUI is better

Cinematic Features

The SIRUI lens provides a 1.33x anamorphic squeeze for cinematic visuals.

Low-Light Performance

The T1.8 aperture allows for better low-light shooting.

Autofocus Technology

The SIRUI lens features advanced autofocus with eye-tracking capabilities.

Why Tamron is better

Price

The Tamron lens is significantly cheaper at $199.

Weight

The Tamron lens is lighter at 7.6 ounces.

Versatility

The Tamron lens is suitable for a wider range of photography styles.

Overall score

SIRUI
85
Tamron
70

Specifications

SpecSIRUITamron
BrandSiruiTamron
Price$599.00$199.00
AutofocusYesYes
Moisture ResistantNoYes
Image CircleSuper 35Full Frame

Dimension comparison

SIRUITamron

Introduction to the Lenses

In the world of photography, choosing the right lens is crucial for achieving the desired visual effects. The SIRUI 20mm T1.8 1.33X Anamorphic Lens and the Tamron 24mm F/2.8 Di III OSD M1:2 Lens are two compelling options for E-mount camera users. The SIRUI lens is priced at $599.00, while the Tamron lens is significantly cheaper at $199.00, making it about 67% less expensive. Each lens targets different photographic styles and needs, making them suitable for distinct types of shooters.

Design and Build Quality

The SIRUI 20mm T1.8 lens is designed to deliver cinematic visuals with a robust construction ideal for professional use. Weighing only 1.06 pounds and featuring a compact build, it remains easy to handle even during long shoots. In contrast, the Tamron 24mm lens is even lighter at just 7.6 ounces and measures 2.5 inches in length. Its compact design makes it an excellent choice for those who prioritize portability without sacrificing functionality. Both lenses are built to withstand various shooting conditions, with the Tamron lens boasting moisture-resistant construction and a dirt-repellent fluorine coating.

Optical Performance

When it comes to optical performance, the SIRUI 20mm T1.8 lens shines with its ultra-fast T1.8 aperture, allowing for exceptional low-light performance and stunning bokeh. This lens also features a 1.33x squeeze factor, providing an immersive cinematic experience that is perfect for filmmakers. On the other hand, the Tamron 24mm F/2.8 lens offers a maximum magnification ratio of 1:2, allowing for detailed close-ups and macro-style shots. The F/2.8 aperture, while not as wide as the SIRUI's, still enables beautiful background blur and sharp images across the frame.

Focal Length and Field of View

The SIRUI lens has a focal length of 20mm, which translates to a horizontal field of view equivalent to a 22mm lens on a full-frame camera. This wide-angle perspective is ideal for capturing expansive landscapes and tight indoor spaces. In comparison, the Tamron's 24mm focal length is versatile enough for general-purpose photography, making it suitable for urban scenes and everyday moments. While both lenses cater to different needs, the SIRUI lens provides a broader perspective, making it particularly advantageous for cinematic applications.

Autofocus Capabilities

Autofocus technology plays a significant role in modern photography, and both lenses offer distinct advantages. The SIRUI 20mm T1.8 features selectable manual and autofocus modes powered by a precision STM stepping motor. This allows for quiet and accurate focusing, complete with eye-tracking capabilities. Conversely, the Tamron 24mm lens is designed for straightforward use, featuring a reliable autofocus system that supports various shooting styles. While the SIRUI lens excels in more complex autofocus scenarios, the Tamron lens remains efficient for everyday photography.

Versatility in Use

In terms of versatility, the Tamron 24mm F/2.8 lens stands out for its ability to cater to a wide range of shooting styles, from landscapes to candid snapshots. Its lightweight and compact design makes it ideal for all-day adventures, allowing photographers to carry it without feeling burdened. The SIRUI 20mm lens, while also versatile, is specifically tailored for filmmakers seeking to create cinematic visuals. Its unique features, such as the anamorphic squeeze, are particularly beneficial for those focused on video production.

Price Consideration

Price is a significant factor when choosing between these two lenses. The SIRUI 20mm T1.8 is priced at $599.00, which reflects its premium features and specialized design for anamorphic cinematography. Meanwhile, the Tamron 24mm lens is available for $199.00, making it an attractive option for those on a budget or new to wide-angle photography. With a price difference of $400, the Tamron lens is about 67% cheaper, offering substantial savings for users who may not require the advanced features of the SIRUI lens.

Which should you buy?

Choosing between the SIRUI 20mm T1.8 and Tamron 24mm F/2.8 lenses ultimately depends on your specific needs and budget. If you are a filmmaker looking to create cinematic visuals with advanced features, the SIRUI lens is the clear choice, despite its higher price. However, if you are a photography enthusiast or someone seeking a versatile, budget-friendly option for general wide-angle photography, the Tamron lens offers remarkable value and performance for just $199. Consider your shooting style and budget to make the best choice for your photography or videography needs.