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Rent NowCanon EF 200-400mm f/4L IS USM Extender 1.4x Lens
Flagship L-Series Super-Telephoto Zoom Integrated 1.4x Teleconverter, 4-Stop Optical IS, Fluorite Optics & Power Focus Mode
The Canon EF 200-400mm f/4L IS USM Extender 1.4x is an ultra-versatile, high-performance super-telephoto zoom lens designed for professional wildlife, sports, and photojournalism photography on Canon EF-mount DSLRs. Its defining feature is a built-in, optically matched 1.4x teleconverter that allows creators to instantly switch from a native 200-400mm f/4 constant aperture setting to an effective 280-560mm f/5.6 range with a simple flick of a switch—all without compromising weather sealing or unmounting the camera.
Engineered with Canon’s premier L-series optics, the lens incorporates one fluorite element and four Ultra-Low Dispersion (UD) elements to eliminate chromatic aberrations and color fringing, paired with Super Spectra and front/rear fluorine coatings for maximum contrast and flare resistance. A 4-stop Optical Image Stabilizer offers three distinct IS modes tailored for single-shot, panning, and exposure-only stabilization. Driven by a high-speed ring-type Ultrasonic Motor (USM), the AF system features full-time manual focus override, Focus Preset, a Focus Limiter switch, and a smooth Power Focus mode for cinematic video focus transitions. The weather-sealed housing includes a removable, rotating tripod collar and is compatible with external Canon EF teleconverters.
Key Features & Performance Highlights
Integrated 1.4x Teleconverter: Instant toggle switch extends focal coverage from 200-400mm f/4 to 280-560mm f/5.6 while maintaining complete weather sealing.
Flagship Fluorite & UD Optics: Features 1 fluorite element and 4 UD elements to achieve high resolution, contrast, and color accuracy wide open.
Advanced 4-Stop Optical Image Stabilizer: Provides 3 selectable IS modes optimized for stationary subjects, fast panning action, and exposure-only activation.
Cinema-Ready Power Focus & Focus Preset: Electronic Power Focus ring allows smooth two-speed focus pulls for video, while Focus Preset offers instant distance recall.
Fast Ring-Type USM AF & Focus Limiter: Delivers rapid, silent autofocus with full-time manual override and selectable focus distance constraints.
Weather-Sealed L-Series Construction: Fully dust- and moisture-resistant chassis with protective fluorine coatings and a removable rotating tripod foot.
Technical Specifications
Lens Type: Super-Telephoto Zoom Lens
Lens Mount System: Canon EF Native (Full-Frame & APS-C Compatible)
Native Focal Length Range: 200 to 400 mm (Constant f/4)
Extended Focal Length Range (1.4x Engaged): 280 to 560 mm (Effective f/5.6)
APS-C Equivalent Focal Length Range: 320 to 640 mm (35mm Equivalent) | 448 to 896 mm (With 1.4x Engaged)
Minimum Focus Distance: 6.6 feet / 2.0 m
Maximum Magnification Ratio: 0.15x (Native at 400mm) | 0.21x (With 1.4x Engaged at 560mm)
Optical Construction: 25 Elements in 20 Groups (1 Fluorite, 4 UD Elements) | 33 Elements in 24 Groups Total with 1.4x Engaged
Image Stabilization: 4-Stop Optical Image Stabilizer (3 Selectable Modes)
Autofocus Mechanism: Ring-Type Ultrasonic Motor (USM)
Specialized Video Controls: Power Focus Ring (Two Variable Speeds)
Diaphragm Design: 9-Blade Rounded Iris
Filter Size: 52mm Drop-In Filter Holder
Environmental Protection: Dust- and Moisture-Resistant L-Series Weather Sealing (Fluorine Coated Elements)
Mounting Foot: Removable, Rotating Tripod Collar
Dimensions (Diameter x Length): Approx. 5.0 x 14.4 inches / 128.0 x 366.0 mm
Weight: Approx. 7.97 lb / 3620 g
