Sigma’s New 300-600mm Lens Could Replace Your Prime

Sigma recently released the Sigma 300-600mm f/4 DG OS Sports lens, and it has quickly gained attention for good reason. Professional sports and wildlife photography often demands top-tier lenses, usually prime optics around 600mm, but these come with steep price tags. Sigma's newest lens offers substantial savings, priced significantly lower than comparable prime lenses, while providing impressive zoom flexibility and performance.

Coming to you from Christopher Frost, this straightforward video breaks down what makes the Sigma 300-600mm f/4 DG OS Sports lens stand out. At a focal length of 300 to 600mm, with a constant maximum aperture of f/4, this lens bridges a notable gap for photographers who crave versatility without sacrificing image quality. Frost notes the lens handles very well, though at nearly 9 pounds, it's advisable to use support like a monopod or tripod for extended shoots. The build quality rivals top-tier lenses from Canon and Sony, constructed from weather-sealed magnesium alloy and sporting intuitive controls for stabilization and autofocus. Image stabilization on this lens notably improves handheld shooting, especially at longer focal lengths.

Optical performance matters significantly, and Frost's testing highlights its strengths and subtle limitations. Sharpness at 300mm is excellent wide open at f/4, though closing down to f/5.6 delivers optimal sharpness. At 600mm, the lens maintains impressive sharpness wide open across the frame, closely matching dedicated prime lenses. Autofocus is consistently accurate and quick, capable of confidently tracking fast-moving subjects, an essential feature for action-heavy photography.

Key Specs

• Focal Length: 300 to 600mm

• Maximum Aperture: f/4

• Lens Mount: Sony E, Leica L

• Image Stabilization: Yes

• Filter Size: 40.5 mm (Drop-In)

• Minimum Focus Distance: 9.2' at 300mm to 14.8' at 600mm

• Optical Design: 28 Elements in 21 Groups

• Diaphragm Blades: 13, Rounded

• Dimensions: 6.6 x 18.5 inches

• Weight: 8.75 pounds

The versatility offered by zooming from 600mm down to 300mm can't be overstated. Frost emphasizes the practicality of quickly adjusting focal lengths in dynamic shooting environments. For wildlife photography, zooming out provides a quicker minimum focus distance, making spontaneous close-up opportunities feasible without switching lenses or missing the moment. The lens also handles well in challenging lighting, minimizing flare and maintaining contrast effectively. Its performance on both full frame and APS-C sensors ensures broad usability across camera types. Check out the video above for the full rundown from Frost.