Rokinon vs SIRUI

Overview of the Rokinon 14mm f/2.8 and SIRUI 20mm T1.8

When comparing the Rokinon 14mm f/2.8 IF ED Super Lens and the SIRUI 20mm T1.8 1.33X Anamorphic Lens, it’s essential to highlight their distinct purposes and features. The Rokinon lens is designed for wide-angle photography, while the SIRUI lens focuses on delivering cinematic quality video. Each lens offers unique strengths that cater to different types of photography and videography.

The Rokinon 14mm lens retails for $231.25, making it a cost-effective option for landscape and astrophotography enthusiasts. On the other hand, the SIRUI 20mm lens is priced at $599.00, reflecting its advanced features tailored for filmmakers. Understanding these differences will help you make an informed decision based on your specific needs.

Image Quality Comparison

The Rokinon 14mm f/2.8 is built to provide exceptional image quality with its 14 elements arranged in 10 groups. This configuration is designed to minimize distortion and aberrations, ensuring sharp, clear images across the frame. With a fast f/2.8 maximum aperture, it excels in low-light conditions, making it ideal for capturing stunning landscapes and starry skies.

Conversely, the SIRUI 20mm T1.8 lens offers a unique 1.33x squeeze factor, producing a cinematic 2.35:1 widescreen ratio without cropping. This feature makes it particularly appealing for videographers seeking to create immersive visuals. While both lenses deliver high-quality imagery, the Rokinon focuses on still photography, while the SIRUI caters to dynamic video content.

Perspective and Focal Length

The Rokinon 14mm lens provides an ultra-wide perspective with a remarkable 115.7° angle of view. This makes it an excellent choice for capturing expansive scenes such as vast landscapes or intricate architectural details. In contrast, the SIRUI 20mm lens, with its wider perspective equivalent to a 22mm full-frame lens, is also suitable for similar applications but is specifically optimized for cinematic use.

The choice between these focal lengths ultimately depends on your intended use. If your primary focus is on still photography, the Rokinon’s ultra-wide capabilities may suit you better. However, if you are looking to create cinematic videos with a broader perspective, the SIRUI lens may be the better option.

Build Quality and Design

In terms of build quality, the Rokinon 14mm lens is designed with durability in mind, weighing 31.7 oz (900g) and featuring a robust structure that can withstand various shooting conditions. It includes a built-in petal-type lens hood, enhancing its usability in bright environments.

The SIRUI 20mm lens, on the other hand, is lightweight at only 1.06 lb (480g), making it ideal for handheld shooting and gimbal work. Its compact design is a significant advantage for videographers who often shoot on the go. This difference in weight and build reflects the lenses' intended uses: the Rokinon is more rugged for outdoor photography, while the SIRUI is tailored for portability in video production.

Autofocus and Manual Control

One of the standout features of the SIRUI 20mm lens is its selectable manual and autofocus capabilities. It utilizes a precision stepping motor for smooth and quiet autofocus operation, which includes eye-tracking features and an AF/MF switch. This level of control is a significant advantage for filmmakers who require precision in their shots.

In contrast, the Rokinon 14mm lens is strictly a manual focus lens. While this provides photographers with complete control over focus, it may not be as convenient for those accustomed to autofocus systems. The manual focus capability allows for creative effects and precise focus tuning, making it suitable for photographers who value hands-on control.

Low-Light Performance

Low-light performance varies significantly between the two lenses. The Rokinon 14mm lens features a fast f/2.8 maximum aperture, which allows it to perform well in dim lighting, making it a solid choice for night photography and astrophotography.

In comparison, the SIRUI 20mm lens boasts an even wider T1.8 aperture, allowing for greater light capture. This feature reduces ISO requirements and enhances clarity in low-light environments, making it particularly effective for shooting night scenes or in poorly lit conditions. If low-light performance is a priority for your work, the SIRUI lens may be the more advantageous option.

Price Consideration

Price plays a significant role in the decision-making process for many photographers and videographers. The Rokinon 14mm lens is priced at $231.25, making it about 61% cheaper than the SIRUI 20mm lens, which costs $599.00. This substantial price difference may sway budget-conscious consumers toward the Rokinon, especially for those focused on still photography.

However, it's crucial to consider what you are getting for the price. The SIRUI lens offers advanced features that cater specifically to filmmakers, which may justify its higher cost for those in need of such capabilities. Ultimately, the choice between these lenses may hinge on your budget and the specific features you prioritize.

Which should you buy?

Deciding between the Rokinon 14mm f/2.8 and the SIRUI 20mm T1.8 comes down to your primary needs as a photographer or videographer. If you are looking for an affordable, high-quality lens for landscapes or astrophotography, the Rokinon 14mm is an excellent choice with its ultra-wide perspective and great low-light performance. On the other hand, if your focus is on filmmaking and you require a lens that delivers cinematic imagery with advanced autofocus features, the SIRUI 20mm lens is worth the investment. Consider your specific needs and budget to make the best choice for your creative projects.