Canon EF 400mm f/2.8L IS II USM Lens

Canon EF 400mm f/2.8L IS II USM Lens
Elite High-Speed Super Telephoto Prime – Professional L-Series Field Kit
The Canon EF 400mm f/2.8L IS II USM is a legendary, high-performance super telephoto lens universally revered by professional sports, action, and wildlife photographers. Combining a commanding 400mm reach with an ultra-bright f/2.8 maximum aperture, this flagship L-series lens offers razor-sharp subject isolation, incredible low-light capability, and elite depth-of-field control.

Its advanced optical formula incorporates two premium fluorite glass elements alongside a specialized Sub Wavelength Coating to eliminate chromatic aberrations, fringing, and ghosting. Equipped with a three-mode, 4-stop Optical Image Stabilizer and a blazing-fast ring-type Ultrasonic Motor (USM), this super telephoto powerhouse is fully weather-sealed to survive the most punishing professional environments. Please note: This lens shows cosmetic field wear, internal dust, and a minor front lip dent, but operates flawlessly. It comes heavily upgraded with a premium aftermarket Zemlin hood and front cap, alongside its original Canon hard case.

Key Features & Engineering
Professional f/2.8 Aperture Speed: The ultra-fast f/2.8 maximum aperture delivers exceptional low-light gathering power and absolute control over selective focus techniques, beautifully melting away distracting backgrounds. Compatible with full-frame EF-mount DSLRs and mirrorless bodies (via adapters), as well as APS-C models where it provides a devastating 640mm equivalent reach.

Fluorite Optics & Sub Wavelength Coating: Incorporates two large fluorite elements to radically reduce color fringing and secondary chromatic aberrations for stellar color accuracy. Canon’s Sub Wavelength Coating (SWC) suppresses internal reflections, flare, and ghosting under harsh, backlit stadium lighting.

4-Stop Multi-Mode Image Stabilization: Features an advanced Optical Image Stabilizer providing up to four stops of shake correction. Three tailored IS modes cover any tracking scenario:

Mode 1: Standard stabilization for stationary subjects.

Mode 2: Dynamically calibrated for smooth panning shots.

Mode 3: Activates stabilization only during the exact moment of exposure, ideal for unpredictable, erratic sports subjects.

Ring-Type USM & Advanced Focusing Tools: A high-speed CPU, optimized AF algorithms, and a powerful ring-type Ultrasonic Motor deliver near-instant, silent autofocus alongside full-time manual focus override. Features a Focus Preset function to instantly recall a programmed distance, a 3-Range Focus Limiter switch to maximize hunting speeds, and a Power Focus ring with two electronic speeds tailored for smooth video transitions.

9-Blade Rounded Aperture & Weather-Sealing: Features a rounded nine-blade diaphragm that yields a smooth, circular, creamy background bokeh. Fully weather-sealed against dust and moisture to withstand heavy downpours on the sidelines.

Extender Compatibility: Natively compatible with optional EF 1.4x and EF 2x teleconverters to extend your focal reach while retaining robust tracking performance.

Item Condition & Diagnostic Notes
Mechanical & Autofocus State: Fully functional. The ring-type USM autofocus motor locks onto subjects instantly, the optical stabilization holds rock-steady, and all custom switch panels operate smoothly on the bench. The removable rotating tripod collar turns smoothly and locks down tightly.

Cosmetic & Mechanical Discrepancies:

Exterior & Filter Scuffs: The lens barrel shows visible cosmetic scuffs, paint wear, and signs of standard professional field use. The integrated rear drop-in filter glass shows some light scratches.

Internal Dust: Minor internal dust particles are present between the internal glass groups from field deployment. Performance Impact: Because these particles sit far away from the focal plane, they do not show up in images or affect resolving power.

Front Lip Dent: The front rim/filter thread lip has a slight physical dent. It is not highly noticeable and does not compromise structural integrity, though it is factored into the discounted price.

Upgraded Accessories & Inclusions:

Upgraded with a premium aftermarket Zemlin brand lens hood (highly regarded for weight distribution and durability).

Includes a matching Zemlin brand front cap and a standard rear cap.

Includes the original heavy-duty Canon 400C hard lens case, integrated tripod foot, and the drop-in rear filter holder.

Technical Specifications
Lens Classification: Professional Super Telephoto Prime (L-Series)

Lens Mount Type: Canon EF Mount

Focal Length: 400mm (640mm equivalent on APS-C)

Maximum Aperture: f/2.8

Minimum Aperture: f/32

Optical Layout: 16 Elements in 12 Groups (2 Fluorite elements)

Image Stabilization: 4-Stop Optical IS (3 Selectable Modes)

Autofocus Motor: Ring-Type USM with Power Focus & Focus Preset

Aperture Blades: 9 (Rounded)

Filter Configuration: 52mm Drop-In Rear Filter System

Dimensions (Diameter x Length): Approx. 6.4 x 13.5 inches / 163.0 x 343.0 mm

Weight: Approx. 8.5 lbs / 3850 g