Canon EF vs SIRUI

Overview

When comparing the Canon EF 50mm f/1.4 USM Standard and Medium Telephoto Lens with the SIRUI 20mm T1.8 1.33X Anamorphic Lens, there are notable differences in design and intended use. The Canon lens is primarily designed for Canon SLR cameras, making it ideal for everyday photography, while the SIRUI lens is tailored for cinematic applications with E-mount cameras. Their pricing reflects this difference, with the Canon lens priced at $398.99 and the SIRUI lens at $599.00, making the Canon option approximately 33% cheaper.

Design and Build Quality

The Canon EF 50mm f/1.4 lens features a classic design that caters to both casual and professional photographers. It consists of seven elements in six groups and has a filter size of 58mm. In contrast, the SIRUI 20mm T1.8 lens is built for cinematography with a more complex design aimed at delivering a cinematic aspect ratio. Weighing only 480 grams, the SIRUI lens is compact and lightweight, making it suitable for handheld shooting. While the Canon lens is robust, the SIRUI's specialized design emphasizes mobility and ease of use in video production settings.

Optical Performance

In terms of optical performance, the Canon EF 50mm f/1.4 lens is equipped with two high-refraction lens elements and Gaussian optics, which help eliminate astigmatism and improve image clarity, even at maximum aperture. It offers a fast f/1.4 maximum aperture, ideal for low-light conditions. The SIRUI 20mm T1.8 lens, on the other hand, features a wide T1.8 aperture that allows more light to hit the sensor, thereby enhancing low-light performance and depth of field control. The 1.33X squeeze factor of the SIRUI lens produces a cinematic widescreen ratio that appeals to filmmakers.

Autofocus and Usability

The Canon lens utilizes an Ultrasonic autofocus motor (USM), providing fast, smooth, and virtually silent autofocus, which is crucial for photography. It also offers full-time manual focus, catering to photographers who prefer manual adjustments. Conversely, the SIRUI lens employs a precision STM stepping motor, delivering accurate and quiet autofocus with eye-tracking capabilities. The inclusion of an AF/MF switch and autofocus lock enables filmmakers to maintain creative control during shoots. While both lenses offer effective autofocus, the SIRUI lens is specifically designed for the unique needs of video production.

Price Comparison

The Canon EF 50mm f/1.4 lens is priced at $398.99, while the SIRUI 20mm T1.8 lens costs $599.00. This price difference of about $200 makes the Canon lens significantly more accessible for those on a budget. The Canon lens provides excellent value, particularly for photographers seeking a reliable, high-performance option without breaking the bank. The SIRUI lens, while more expensive, justifies its price with advanced features tailored for cinematic use, making it a worthwhile investment for videographers.

Application and Versatility

The Canon EF 50mm f/1.4 lens is versatile for various photographic situations, from portraits to street photography. Its standard focal length allows for effective shooting in diverse environments. The SIRUI 20mm T1.8 lens, however, is designed specifically for wide-angle shots and cinematic storytelling, making it less versatile for traditional photography. It excels in capturing expansive landscapes and tight indoor spaces, which might not be the primary focus of the Canon lens. Depending on your photography or videography needs, one lens may be more suitable than the other.

Compatibility

Compatibility is a crucial factor in choosing between these two lenses. The Canon EF 50mm f/1.4 is specifically designed for Canon SLR cameras, ensuring seamless integration with Canon's systems. In contrast, the SIRUI 20mm T1.8 lens is built for E-mount cameras, including popular models like the A6500, A6700, and FX3/30. If you own a Canon camera, the Canon lens will be the obvious choice due to its designed compatibility. However, if you use an E-mount camera, the SIRUI lens will be the better option for achieving cinematic quality in your videos.

Which should you buy?

Ultimately, the choice between the Canon EF 50mm f/1.4 and the SIRUI 20mm T1.8 lens depends on your specific needs and shooting style. The Canon lens is a solid choice for everyday photography, offering excellent optical performance and affordability at $398.99. Meanwhile, the SIRUI lens, priced at $599.00, caters to videographers seeking cinematic quality, making it ideal for film projects. If you prioritize versatility and budget, the Canon lens is the way to go. However, if your focus is on creating high-quality video content with a cinematic flair, the SIRUI lens would be the better investment.