Sigma 800mm F5.6 EX DG HSM

Canon EF

Review

The Sigma 800mm F5.6 EX DG HSM is a super-telephoto lens designed for Canon EF mount cameras, primarily appealing to wildlife and sports photographers who require extreme reach without compromising on image quality. This lens, with its hefty construction and impressive optical features, is a tool built for serious enthusiasts and professionals looking to capture distant subjects with precision and clarity.

Build Quality and Design

At first glance, the Sigma 800mm F5.6 EX DG HSM clearly asserts itself as a rugged lens, featuring a robust design that can withstand the rigors of outdoor photography. Weighing in at approximately 4.4 kg (9.7 lbs), this lens demands a sturdy tripod for optimal performance. The lens barrel is made of high-quality materials, and its finish is both aesthetically pleasing and functional. The zoom and focus rings are generously sized, providing a tactile feel for precise adjustments—a vital feature when dealing with such long focal lengths.

Optical Performance

In terms of optical performance, the Sigma 800mm F5.6 does not disappoint. With its advanced lens architecture, including multiple low dispersion elements, this lens delivers impressive sharpness across the frame, even at its maximum aperture. Distortion and chromatic aberration are well controlled, and bokeh quality is pleasing, making it suitable for isolating subjects against busy backgrounds. The HSM (Hyper Sonic Motor) ensures fast and quiet autofocus performance, which is beneficial for capturing fast-moving subjects such as birds in flight or fleeting moments in sports.

Usability

Using the Sigma 800mm can be a double-edged sword. While the reach it provides is unparalleled, the weight and overall bulk might prove challenging for some photographers. It's not an ideal lens for handheld shooting unless you’re particularly strong or have great technique. Additionally, its length can make it cumbersome to carry on longer treks in the field. However, its compatibility with Canon’s teleconverters permits even greater reach, making it a versatile choice for those who require it.

Pros and Cons

Pros

• Exceptional image quality and sharpness, even at wide-open aperture.
• Well-constructed and durable design suitable for outdoor use.
• Fast and accurate autofocus due to HSM technology.
• Good control of chromatic aberration and distortion.
• Compatibility with teleconverters for extended focal lengths.

Cons

• Heavy and large, requiring a sturdy tripod for stability.
• Somewhat challenging to maneuver in tight spaces or during long shoots.
• F5.6 maximum aperture may limit performance in low-light situations.

Verdict

In conclusion, the Sigma 800mm F5.6 EX DG HSM is an outstanding lens for photographers who require long-range capabilities without sacrificing image quality. Its solid performance and build quality make it a worthy addition to any serious wildlife or sports photographer's kit. However, those considering this lens should be prepared for its weight and size, as it is not designed for casual shooters. If you are willing to put in the effort for the reward of incredible images, this lens may just be your next perfect companion.