The Sigma 300-600mm f/4 DG OS Sports Lens is an ultra-telephoto zoom lens designed for sports, wildlife, and action photography. Combining a constant f/4 aperture with advanced optical stabilization and AI-enhanced autofocus, this lens delivers the image quality of a prime with the flexibility of a zoom. The inner zoom mechanism ensures balanced handling, while a weather-sealed magnesium alloy body provides durability in demanding environments. Available for Sony E-mount and L-Mount, the 300-600mm f/4 is built for professionals who need precision, reach, and reliability.

Designed for high-resolution imaging, the lens incorporates 28 elements in 21 groups, including FLD and SLD elements, to minimize aberrations and maximize contrast. 

• Constant f/4 aperture for consistent exposure across the zoom range
• Nano Porous Coating (NPC) reduces flare and ghosting for improved clarity
• Edge-to-edge sharpness at all focal lengths

Sigma’s High-response Linear Actuator (HLA) system delivers rapid, silent, and precise autofocus, ideal for capturing fast-moving subjects. 

• AI-powered tracking recognizes and follows wildlife, athletes, and vehicles
• Optimized for stills and video, with minimal focus breathing

Sigma’s OS2 stabilization system ensures shake-free shooting, even at 600mm. 

• 5.5 stops of stabilization, improving handheld performance
• Mode 1: General stabilization for everyday photography
• Mode 2: Panning mode for motion tracking

Built for harsh environments, the lens features aerospace-grade materials and protective coatings. 

• Magnesium alloy barrel for durability without excessive weight
• Dust- and splash-resistant seals for reliability in the field
• Thermal insulation coating prevents overheating in extreme temperatures

Designed for versatility, the lens offers multiple control options and a drop-in filter holder for professional workflows. 

• Drop-in filter system supports 40.5mm ND and polarizing filters
• Function ring with Focus Preset & Power Focus modes for controlled focus shifts
• Programmable buttons for tailored operation

Available in Sony E-mount and L-Mount, with compatibility for Sigma’s teleconverters. 

• 1.4x and 2.0x teleconverters extend the focal range to 1200mm
• Supports Sigma USB Dock for firmware updates and customization