Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye

Canon EF

Review

The Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye lens is a fascinating piece of optical engineering designed specifically for Canon EF mounts. This lens draws photographers into the unique and intriguing world of fisheye photography, offering a circular image that stretches reality in visually striking ways.

Build and Design

The build quality of the Sigma 4.5mm F2.8 is solid and robust, constructed from high-quality materials that exude a sense of durability. It features a compact and lightweight design, making it relatively easy to handle and carry around for long shoots. The lens has a clear focus on functionality, with a smooth manual focus ring that's pleasing to use. The built-in hood, which naturally comes with the lens due to its circular design, adds an additional layer of protection against flares and scratches.

Optical Performance

Optically, the Sigma 4.5mm performs very well, producing sharp images even at maximum aperture. Distortion is inherent in fisheye lenses, and while this lens is no exception, it creatively embraces the characteristics of distortion for artistic effect. The color reproduction is vibrant, and contrast levels are impressive, resulting in images that pop. However, it’s worth noting that the edges can become softer than the center, which is a common trait in fisheye lenses, especially at wider apertures.

Autofocus and Usability

The Hyper Sonic Motor (HSM) ensures quick and quiet autofocus, making it suitable for various shooting scenarios, including video work. However, due to the lens's ultra-wide angle and the slight tendency for the autofocus system to hunt, it might not be the best choice for fast-moving subjects unless you accompany it with an experienced technique. Manual focus is smooth and tactile, enabling precise control over your compositions.

Pros and Cons

Pros

• Excellent build quality with a compact and durable design.
• Sharp images with good color reproduction.
• Quick and quiet autofocus thanks to HSM.
• Unique circular fisheye effect for creative photography.

Cons

• Softer edges compared to the center at wide apertures.
• Autofocus can occasionally hunt in low light or complex scenes.
• The circular image can limit compositional choices compared to full-frame fisheye options.

Verdict

The Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye lens is a compelling choice for photographers looking to experiment with wide perspectives and artistic creativity. Its solid construction, impressive optical qualities, and effective autofocus make it a fantastic addition to the kit of anyone willing to embrace the unique distortions that a fisheye lens offers. While it does have some limitations, particularly regarding edge sharpness and autofocus performance in tricky lighting, these drawbacks are often overshadowed by the sheer fun and striking images this lens can achieve. Overall, if you're a Canon EF mount user seeking a fisheye lens that stands out, this Sigma model is certainly worth considering.