Sony FE 400mm f/4.5 GM OSS Lens
Ultra-Lightweight Super-Telephoto Prime – G Master Optical Design, f/4.5 Maximum Aperture, Dual XD Linear Autofocus Motors (Supports up to 120 fps High-Speed Burst Shooting), Optical SteadyShot (OSS) Image Stabilization with 3 Operational Modes, Super ED and ED Glass Elements, Nano AR Coating II, Rounded 11-Blade Circular Diaphragm, 4 Customizable Focus Hold Buttons & Focus Limiter Switch, Assignable Function Ring, Removable Rotating Tripod Collar Foot, 95mm Front Filter Thread, Weather-Sealed Magnesium/Composite Chassis with Fluorine Front Coating, Full Compatibility with Sony 1.4x & 2.0x Teleconverters, Native Sony E-Mount (Excellent Condition)
The Sony FE 400mm f/4.5 GM OSS is a groundbreaking super-telephoto prime lens that delivers flagship G Master optical resolution and rapid tracking autofocus in an ultra-portable, handheld form factor. Engineered for professional sports photographers, sideline photojournalists, tracking wildlife cinematographers, and birding enthusiasts, this lens breaks traditional telephoto bulk by measuring just 9.5 inches in length and weighing a mere 2.2 pounds—over 4 pounds lighter and nearly 5 inches shorter than an f/2.8 alternative. Utilizing an optimized optical layout with a single front element configuration, the center of gravity is drawn back toward the camera body, delivering exceptional balance and ergonomic maneuverability during extended handheld tracking sessions.
Autofocus is driven by two high-thrust XD (extreme dynamic) linear motors that provide rapid, whisper-quiet, and vibration-free focus acquisition capable of tracking fast-moving subjects at continuous burst speeds up to 120 fps on advanced Alpha flagships. Built-in Optical SteadyShot (OSS) stabilization offers three distinct shooting modes—Standard (Mode 1), Panning (Mode 2), and Erratic Action/Moving Subjects (Mode 3)—ensuring crisp handheld captures in challenging light. Optically, the lens incorporates precision Super ED (Extra-low Dispersion) and standard ED elements to virtually eliminate chromatic aberration and color fringing, backed by Nano AR Coating II to suppress ghosting and internal flare. The rounded 11-blade aperture produces smooth, circular background bokeh with natural subject isolation. Outfitted with four tactile focus hold buttons, full-time DMF override, an assignable control ring, a quick-detach tripod collar foot, extensive dust- and moisture-resistant sealing, a 95mm front filter thread, and full support for 1.4x and 2.0x teleconverters (yielding 560mm f/6.3 and 800mm f/8 configurations), this lens redefines super-telephoto agility.
KEY FEATURES & PERFORMANCE HIGHLIGHTS
Ultra-Compact Handheld Ergonomics: Measures only 9.5″ long and weighs 2.2 lb, redistributing weight toward the camera mount for agile, all-day handheld shooting.
G Master Optical Fidelity: Advanced Super ED and ED glass elements deliver razor-sharp edge-to-edge resolution with suppressed chromatic aberrations.
Dual XD Linear AF Motors: High-speed drive system supports silent, precision autofocus tracking compatible with burst shooting speeds up to 120 fps.
3-Mode Optical SteadyShot (OSS): Dedicated onboard stabilization with specialized algorithms for general shooting, horizontal panning, and unpredictable sports/wildlife motion.
Nano AR Coating II: High-efficiency optical coating suppresses internal reflections, surface glare, and ghosting for high contrast in backlit environments.
11-Blade Circular Aperture: Rounded iris geometry generates smooth, creamy bokeh with natural depth-of-field roll-off for prominent subject separation.
Comprehensive Barrel Controls: Outfitted with four focus hold buttons, a customizable function ring, focus range limiter, full-time DMF switch, and OSS toggles.
Removable Tripod Foot: Detaches quickly to reduce overall bulk for handheld mobility or reattaches securely for monopod/tripod support.
Teleconverter Ready: Fully compatible with Sony 1.4x (560mm f/6.3) and 2.0x (800mm f/8) teleconverters with full AF/AE retention.
Weather-Resistant Construction: Rubber-sealed seams, gasketed mount ring, and a fluorine-coated front element resist harsh outdoor elements.
TECHNICAL SPECIFICATIONS
Product Type: Full-Frame Super-Telephoto Prime Lens
Brand: Sony
Series: G Master (GM)
Model: FE 400mm f/4.5 GM OSS
Lens Mount: Sony E-Mount
Format Compatibility: 35mm Full-Frame (APS-C Equivalent: 600mm)
Focal Length: 400 mm
Maximum Aperture: f/4.5
Minimum Aperture: f/32
Angle of View: 6° 10′ (Full-Frame) / 4° 10′ (APS-C)
Optical Design: Premium G Master Configuration with Super ED & ED Elements
Lens Coatings: Nano AR Coating II & Protective Front Fluorine Coating
Diaphragm Blades: 11 (Rounded Circular Aperture)
Focus Drive System: Dual XD (Extreme Dynamic) Linear Motors
Focus Type: Internal Focusing (IF) with Linear Response MF
Focus Range Limiter: Full / 8m to Infinity / Near Range
Image Stabilization: Optical SteadyShot (OSS) with Modes 1, 2, and 3
Maximum Continuous Shooting Speed: Compatible with camera continuous burst speeds up to 120 fps
Teleconverter Compatibility: Sony FE 1.4x (SEL14TC -> 560mm f/6.3) & Sony FE 2.0x (SEL20TC -> 800mm f/8)
Filter Thread Size: 95 mm (Front Screw-In)
Tripod Collar: Removable, Rotating Foot
Weather Sealing: Comprehensive Dust- and Moisture-Resistant Sealing with Mount Gasket
Dimensions: Approx. 3.94 x 9.50 inches / 100.0 x 241.3 mm
Weight: Approx. 2.2 lb / 998 g (Excluding Tripod Foot)
Physical Condition: Excellent cosmetic, optical, and fully functional operational condition
Finish: Sony Telephoto Off-White with Matte Black Controls
Function: Handheld Sideline Sports, Fast-Action Track & Field, Wildlife Documentary, Avian Photography, Safari Field Work & Distant Telephoto Video Production
