The Sigma 300-800mm F5.6 EX DG HSM is an impressive lens designed specifically for Nikon F (DX) mount cameras, providing an extensive focal length range that is particularly appealing to wildlife and sports photographers. With its extraordinary reach, this lens opens up new possibilities for capturing distant subjects with incredible detail and clarity.
Constructed with a robust build, the Sigma 300-800mm features a solid yet manageable weight, making it suitable for outdoor shooting despite its size. The lens incorporates a protective coating to minimize the effect of dust and moisture, ensuring reliable performance in varying weather conditions. The design includes a zoom lock switch that can be useful in preventing the lens from extending unintentionally.
The optical performance of this lens is noteworthy, thanks to its use of high-quality glass and advanced coatings that help to reduce chromatic aberrations and flare. Images produced are sharp and vibrant, even at maximum zoom. However, as is common with super-telephoto lenses, the sharpness can vary slightly across the frame, particularly at the extreme edges at longer focal lengths. Users can expect impressive bokeh as well, which can enhance the subject separation.
The Hypersonic Motor (HSM) provides fast and quiet autofocus, making it easier to track moving subjects. However, in low-light conditions or at the extreme ends of its zoom range, focusing can become a bit sluggish. Photographers might also find that utilizing a tripod or monopod is beneficial for stability, especially when operating at longer focal lengths to avoid camera shake.
Designed for Nikon F (DX) mount, the Sigma 300-800mm works seamlessly with a range of Nikon DSLR cameras. However, do keep in mind that user experiences with autofocus performance can vary depending on the camera body it is paired with, particularly with older models in the Nikon lineup.
Overall, the Sigma 300-800mm F5.6 EX DG HSM is a go-to choice for photographers seeking versatility and superb reach. While it may come with a few usability drawbacks, such as weight and autofocus performance in challenging conditions, its optical quality and build make it a compelling option for serious wildlife and sports photography enthusiasts who need that extra distance.