Sigma announces the Ultra-Telephoto 300-600mm f/4 DG OS Sports

Richard Cox
3 Min Read

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Sigma has announced the ultra-telephoto zoom 300-600mm F4 DG OS sport for the L and E mounts.

Sigma 300-600mm f/4 DG OS Sports Overview

  • Full-Frame | f/4 to f/16
  • Constant Aperture Super Telephoto Zoom
  • HLA AF Motor
  • 5.5 Stops of Optical Stabilization
  • 28 Elements in 21 Groups
  • Anomalous and High-Refractive Glass
  • Weather-Sealed Design

Versatile Reach, Prime-Like Performance

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.

Professional-Grade Optics with Constant f/4 Aperture

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

Advanced Autofocus with AI Subject Detection

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

5.5-Stop Optical Stabilization and Dual OS Mode

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

Rugged, Weather-Sealed Construction

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 

Customizable Handling and Drop-In Filters

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

Teleconverter Compatibility and Mount Options

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

Purchase Options

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Richard has been using Canon cameras since the 1990s, with his first being the now legendary EOS-3. Since then, Richard has continued to use Canon cameras and now focuses mostly on the genre of infrared photography.
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