7Artisans vs SIRUI

Overview of the 7Artisans 4mm F2.8 Fisheye and SIRUI 20mm T1.8 Anamorphic Lens

The 7Artisans 4mm F2.8 Fisheye Ultra Wide Angle Lens is priced at $149.00, making it a budget-friendly option for Sony E-mount mirrorless camera users. In contrast, the SIRUI 20mm T1.8 Anamorphic Lens is significantly more expensive at $599.00, targeting professionals and serious videographers. While both lenses cater to users of Sony cameras, they serve different purposes—one focuses on wide-angle photography with a unique fisheye perspective, while the other provides cinematic capabilities through its anamorphic design.

Design and Build Quality

The 7Artisans 4mm F2.8 lens boasts a compact and lightweight design, weighing only 201g (0.44 lb) and measuring about 60mm x 54mm. This portability makes it an excellent choice for travel and spontaneous shooting. Conversely, the SIRUI 20mm T1.8 lens is heavier at 480g (1.06 lb) but still maintains a compact form factor ideal for handheld and gimbal shooting. Both lenses are crafted with a focus on durability, but the choice here largely hinges on the intended use—whether you prioritize weight or advanced features.

Focal Length and Angle of View

The 7Artisans 4mm F2.8 lens offers a remarkable 225° ultra-wide angle, perfect for capturing expansive landscapes and unique perspectives. This fisheye effect enhances visual impact, making it suitable for creative photography. On the other hand, the SIRUI 20mm T1.8 lens provides a horizontal field of view equivalent to a 22mm full-frame lens, ideal for cinematic shots and tight indoor spaces. The significant difference in focal lengths means that the 7Artisans lens is more specialized for wide-angle applications, while the SIRUI lens is versatile for both wide-angle and low-light scenarios.

Aperture and Low-Light Performance

When it comes to aperture, the 7Artisans 4mm F2.8 features a maximum aperture of F2.8, which is adequate for general photography but may struggle in very low-light conditions. In contrast, the SIRUI 20mm T1.8 lens has an ultra-fast T1.8 aperture, allowing more light to enter the lens, reducing ISO requirements for clearer night scenes. This capability not only improves low-light performance but also enhances depth of field control, making it a superior choice for videographers and photographers looking to capture dramatic low-light shots.

Autofocus and User Experience

The 7Artisans 4mm F2.8 lens is a manual focus lens, requiring users to adjust focus manually, which can be both challenging and rewarding for those who enjoy the art of photography. In contrast, the SIRUI 20mm T1.8 offers selectable manual and autofocus options, powered by a precision STM stepping motor that ensures quiet and accurate focusing. This feature is particularly beneficial for videographers who need to keep their focus transitions smooth and unobtrusive. The SIRUI lens also includes eye-tracking capabilities, enhancing the overall user experience for dynamic shooting situations.

Image Quality and Optical Performance

The 7Artisans 4mm F2.8 lens is constructed with 10 glass elements in 8 groups, designed to minimize internal reflections such as flaring and ghosting. This results in high-quality images with good color accuracy. Meanwhile, the SIRUI 20mm T1.8 lens is optimized for APS-C and Super 35 sensors, ensuring excellent coverage and image clarity. The 1.33x squeeze factor of the SIRUI lens creates a cinematic 2.35:1 widescreen ratio, which is ideal for filmmakers. The optical performance of the SIRUI lens makes it a better investment for those focused on video production.

Versatility and Usability

The 7Artisans 4mm F2.8 lens is versatile in its application for creative photography, particularly for those who appreciate fisheye effects in their work. It is compatible with a range of Sony E-mount APS-C mirrorless cameras, making it accessible for many users. Meanwhile, the SIRUI 20mm T1.8 lens is designed for a broader range of E-mount cameras, including those used in professional videography, such as the A6500, A6700, and FX3. The added features of autofocus and cinematic capabilities make the SIRUI lens a powerful tool for both professional and independent filmmakers.

Which should you buy?

Choosing between the 7Artisans 4mm F2.8 Fisheye lens and the SIRUI 20mm T1.8 Anamorphic lens ultimately depends on your specific needs and budget. If you are looking for an affordable lens that excels in creative wide-angle photography, the 7Artisans lens at $149.00 offers great value. However, if your focus is on professional video production and you require advanced features like autofocus and superior low-light performance, the SIRUI lens, priced at $599.00, is worth the investment. Each lens has its unique strengths, so consider what aligns best with your photographic or videographic goals.