Superior Reach and Optical Quality

The Sigma 300-600mm f/4 DG OS Sports Lens offers super-telephoto flexibility, covering a 300-600mm range with a constant f/4 aperture. This design allows it to replace multiple telephoto primes while maintaining speed and versatility. The bright f/4 maximum aperture balances weight and performance, providing excellent depth of field control and low-light usability.

Featuring an internal zoom and internal focus design, the lens maintains a consistent length during operation, minimizing center of gravity shifts for stable handling—whether shooting handheld, on a monopod, or using a tripod.

Advanced Autofocus and Optical Stabilization

HLA-Driven Autofocus

Equipped with a high-thrust HLA (High-response Linear Actuator), the Sigma 300-600mm f/4 DG OS Sports Lens delivers exceptionally fast, precise autofocus. The lightweight focusing group allows for quick focus switching and agile tracking, making it ideal for capturing fast-moving subjects such as wildlife, sports, and aviation.

Robust Optical Stabilization

The advanced optical stabilization system ensures steady shots, reducing motion blur even at extreme focal lengths. Whether handheld or mounted on a monopod/tripod, the system enhances sharpness and clarity, allowing for reliable shooting in low-light and high-action scenarios.

Precision Focus Control & Customization

Configurable Function Ring

A new function ring enhances focus control by offering two distinct modes:

• Focus Preset Mode: Instantly shifts focus to a pre-registered position, ideal for quickly reacquiring subjects.
• Power Focus Mode: Enables smooth, constant-speed focus pulling, perfect for cinematic video shooting. The focus speed can be adjusted in two steps, allowing for precision control.

Enhanced Focus Management

• Four separate AFL buttons provide easy access to focus position control while tracking fast-moving subjects.
• Focus Mode & Focus Limiter switches allow further refinement of focus speed and range, ensuring optimal performance for different subjects and shooting distances.

Powerful Optical Stabilization with OS2 Algorithm

Designed for sharp, shake-free images, the Sigma 300-600mm f/4 DG OS Sports Lens features an advanced 5.5-stop image stabilization system that ensures superior performance, even at 600mm. Sigma’s OS2 algorithm, combined with a dedicated drive unit, actuator, and high-precision sensor, optimizes stabilization for this large, fast-aperture zoom.

Dual OS Modes for Enhanced Control:

• Mode 1: A general-purpose stabilization mode, ideal for most photo and video applications.
• Mode 2: A specialized mode for panning shots, utilizing the OS2 algorithm to stabilize movements horizontally, vertically, or diagonally, regardless of camera orientation.

Durable Design and Intuitive Handling

Rugged, Weather-Sealed Construction

Engineered for harsh environments, the Sigma 300-600mm f/4 DG OS Sports Lens boasts a highly durable, professional-grade design to withstand challenging conditions:

• Magnesium alloy barrel ensures durability while keeping weight manageable.
• Dust- and splash-resistant seals provide reliable performance in inclement weather.
• Water- and oil-repellent front coating allows for easy cleaning and maintenance.
• Thermal insulation paint minimizes overheating, ensuring consistent performance in extreme temperatures.

Intuitive Handling, Drop-In Filters, and Accessories

• As a heavier and larger lens, this 300-600mm f/4 lens will often be used atop a tripod or monopod; it features a rotating tripod collar that incorporates detents at each 90° position. The removable tripod foot is also compatible with Arca-type clamps for direct attachment to a variety of heads.
• Compatible with 40.5mm filters via an included drop-in filter holder. Optional variable ND and circular polarizer drop-in filters can be used instead, too.
• A matching lens hood is included along with a custom backpack-style protective case, removable tripod socket, and the drop-in filter holder.