Versatile Ultra-Telephoto Prime. The Sigma 500mm f/5.6 DG DN OS Sports for L-mount provides a broad focal range that’s perfect for sports, wildlife, action, and aviation photography, in addition to any other situation in which you want to capture fast-moving subjects. The f/5.6 aperture isn’t great in low light, so you’ll probably want to stick to outdoor lighting conditions. Using an APS-C camera? You’ll get a focal length equivalent to 750mm.

Dual High-Response Linear Action Autofocus. The 500mm’s autofocus system uses an AF actuator driven by dual High-Response Linear Action motors to deliver fast, precise, and silent operation in a wide variety of shooting situations. Its floating-focus configuration means there’s markedly less movement in each focus group, which significantly increases the autofocus system’s ability to track fast-moving subjects like athletes, cars, planes, or animals. You also get full-time manual-focus override for quick fine-tuning. Minimal focus breathing makes the 500mm great for video applications, and ensures stability when shooting hand-held, with a gimbal, or on a tripod.

OS2 Optical Image Stabilization System. Sigma’s OS2 optical image stabilization system helps to eliminate camera shake when shooting, offering up to five stops of compensation. There are two image-stabilization modes: Mode 1 is meant for general handheld shooting, while Mode 2 uses Sigma’s Intelligent OS algorithm to assist with panning shots and sports shooting.

Advanced Optical Design. As a part of Sigma’s Sports line, this lens goes through Sigma’s rigorous A1 testing, ensuring high image quality. Its fourteen-group/twenty-element optical design incorporates three “F” Low-Dispersion elements and two Special Low-Dispersion elements, which maintain sharpness and clarity while eliminating flare, ghosting, and chromatic aberrations.

Professional-Grade Build. The lens barrel boasts a durable metal construction. The dust- and splash-proof sealing allows for worry-free shooting in adverse situations, with water- and oil-repellent coatings on the front and rear elements to keep them clean. There are easy-to-locate focus and aperture rings, the latter of which has click and lock switches. This rental includes the heavy-duty Sigma TS-151 tripod socket with a removable, replaceable foot, which evenly distributes the lens’s weight to give you flexibility when shooting from a tripod or monopod.