Name: Canon EF 400mm f4 DO IS II USM Lens
Brand: Canon
SKU: UCE-06-8510-3 8470000012
Price: 3711.78 USD
Availability: InStock

Exhibits minimal signs of wear, noticeable only upon close inspection. Fully operational and includes all items shown in the listing photos. The actual item for sale is pictured unless specifically noted otherwise. The condition rating applies to the core item and not any accessories.

Canon EF 400mm f4 DO IS II USM Lens offers pro-level reach, fast f/4 performance, and compact portability for wildlife and sports—shop now.

Crafted for professionals and serious wildlife photographers, the Canon EF 400mm lens boasts superior optical performance in a lightweight design. This telephoto lens is well-suited for full-frame DSLR cameras.

The Canon EF 400mm f/4 DO IS II USM is a high-performance telephoto lens featuring advanced optical technology for exceptional image quality. Its compact and lightweight design incorporates a Diffractive Optics (DO) element to reduce chromatic aberrations and enhance sharpness. Equipped with Image Stabilization (IS) and a fast f/4 aperture, this lens is ideal for capturing distant subjects with precision and clarity.

Designed for EF-Mount cameras, fits full-frame format.

Mount Compatibility

Features f/4 to f/32 aperture range for versatile shooting.

Aperture Range

Employs gapless dual-layer diffractive optics for sharp imagery.

Optical Design

Includes an aspherical element and a UD element to reduce aberrations.

Optical Elements

The Canon EF 400mm f/4 DO IS II USM Telephoto is a long telephoto lens built around the **Canon EF** mount standard. The EF mount is Canon's established DSLR lens interface, providing connectivity with a broad range of Canon camera bodies. With only mount data confirmed in the current specifications, the key verified detail for this lens is its **Canon EF** mount, which positions it within Canon's extensive DSLR ecosystem. Buyers invested in the Canon EF system will find this lens mount-compatible with their existing bodies. For full technical details including optical design, weight, dimensions, autofocus performance, and stabilization specs, prospective buyers should reach out to the seller directly or consult Canon's official product documentation to ensure this lens meets their shooting requirements.

Canon's DO lens technology uses a multi-layer diffractive optical element to reduce chromatic aberration while keeping the lens significantly shorter and lighter than conventional super-telephoto designs.

Diffractive Optics Element

A fast f/4 maximum aperture at 400mm delivers strong subject separation and supports faster shutter speeds in lower light conditions common in wildlife and sports photography.

400mm f/4 Aperture

Canon's second-generation IS system provides up to 4 stops of shake correction, with a dedicated panning mode for tracking fast-moving subjects.

Image Stabilization II

Canon's ring-type Ultrasonic Motor delivers fast, near-silent autofocus with full-time manual focus override without switching out of AF mode.

Ring-Type USM Autofocus

Compatible with the full range of Canon EF-mount DSLR bodies, including full-frame and APS-C sensors, and also adaptable to Canon RF-mount mirrorless cameras via the EF-EOS R adapter.

Canon EF Mount

The DO optical design results in a noticeably shorter and lighter lens body compared to traditional 400mm f/4 lenses, improving portability for field use.

Compact Super-Telephoto Build

Front and rear lens elements feature a fluorine coating that repels water, dust, and fingerprints, making cleaning easier in outdoor shooting conditions.

Fluorine Coating

Dust and moisture resistant sealing throughout the lens barrel makes it suitable for outdoor use in challenging environmental conditions.

Weather-Sealed Construction

A rotating tripod collar allows the lens to be mounted directly to a tripod or monopod for stable shooting at long focal lengths.

Tripod Collar Included

User Manual

Canon EF 400mm f/4 DO IS II USM Telephoto Lens

Canon EF 400mm f/4 DO IS II USM Telephoto

2026-01-28-canon-lenses

2026-01-29T01:23:57.425Z

Canon EF 400mm f/4 DO IS ii USM lens review with samples (Full-frame & APS-C)

Canon EF 400mm f/4 DO IS II USM Lens Review

Canon EF 400mm f/4 DO IS II USM  - Lens Review

The Canon EF 400mm f4 DO IS II USM Lens is a professional telephoto option designed for photographers who need reach, speed, and portability in one package. This excellent condition lens is well suited for wildlife, sports, and distant subjects, offering a compact alternative to many traditional super-telephoto designs. Key Features<ul><li>400mm Telephoto Reach: Ideal for isolating distant subjects with strong subject compression and excellent framing flexibility.</li><li>f/4 Aperture: Bright maximum aperture for dependable performance in lower light and attractive background separation.</li><li>Diffraction Optics Design: Canon's DO construction helps keep the lens more compact and manageable for field use.</li><li>Image Stabilization: Built-in stabilization supports sharper handheld shooting at long focal lengths.</li><li>USM Autofocus: Fast, quiet autofocus suited to action, wildlife, and other demanding subjects.</li><li>EF Mount Compatibility: Designed for Canon EF-mount camera bodies, making it a strong choice for established Canon users.</li><li>Professional-Grade Handling: A refined build that balances durability with improved portability for a lens of this class.</li></ul> If you're looking for a high-performance super-telephoto lens with excellent reach and a more travel-friendly form factor, this Canon 400mm f4 is a compelling addition to your kit.

Continental U.S.

Canon EF 400mm f4 DO IS II USM Lens

<h3 class="text-[1.5rem] font-semibold">100% Refund Guarantee for Lost, Damaged, or Misrepresented Items</h3>
At GearFocus, we're dedicated to providing a secure and reliable marketplace for creatives. Our buyer protection policy ensures peace of mind, safeguarding your purchases from unforeseen issues.
&nbsp;
<h3 class="text-[1.5rem] font-semibold">How It Works:</h3>
Follow These Steps:
<ol class="text-[1.3rem]">
<li>Contact the Seller: If there's an issue, contact the seller within 48 hours of delivery. Many problems can be resolved directly through their return policy. Be sure to provide clear photos or videos when messaging the seller.</li>
<li>Contact GearFocus: If the seller hasn&rsquo;t responded within 24 hours, email us at&nbsp;<a class="text-brand-secondary hover:text-brand-primary" href="mailto:support@gearfocus.com" target="_blank" rel="noopener noreferrer">support@gearfocus.com</a> with supporting documentation (photos, repair estimates, etc.).</li>
<li>We&rsquo;ll Take It from There: GearFocus will step in, review the situation, and collaborate with the seller. We&rsquo;ll notify you if additional details are needed to process your refund.</li>
</ol>
&nbsp;
<h3 class="text-[1.5rem] font-semibold">What&rsquo;s Covered?</h3>
To be covered, orders must be completed directly through GearFocus (including payment and shipment records) and issues reported within 48 hours of delivery or within 14 days of the expected delivery date if undelivered.
You qualify for a refund if your item is:
<ul class="text-[1.3rem]">
<li>Lost by the carrier</li>
<li>Damaged during shipping</li>
<li>Significantly different from the listing description or photos</li>
<li>Not delivered within 10 days of the expected arrival date</li>
</ul>
&nbsp;
<h3 class="text-[1.5rem] font-semibold">Seller Return Policies &ndash; Know Before You Buy</h3>
Sellers on GearFocus follow one return policy per listing, clearly outlined in the item description. Buyers are encouraged to&nbsp;review the return policy carefully before purchasing.
&nbsp;
<h3 class="text-[1.5rem] font-semibold">Return Policies Include:</h3>
<ul class="text-[1.3rem]">
<li>48-Hour Verification Period (For Verified Sellers): Buyers have 48 hours to inspect the item upon delivery. If discrepancies are found, the seller covers return shipping. (Excludes "As-Is" and "Poor" condition items)</li>
<li>14-Day No Questions Asked Return: Some approved sellers allow returns for any reason within 14 days. Buyers cover return shipping and seller fees.&nbsp;(Excludes items classified as "Poor" or "As-Is" , and Drones)</li>
</ul>
&nbsp;
Important: Return policies are set by the seller at the time of listing. Buyers cannot request to switch policies after purchase.
&nbsp;
<h3 class="text-[1.5rem] font-semibold">Exceptional Cases &ndash; Returns Outside the Seller&rsquo;s Policy</h3>
Occasionally, a seller may offer to accept a return outside of their stated policy. When this occurs:
<ul class="text-[1.3rem]">
<li>Both the buyer and seller must contact GearFocus Support at <a class="text-brand-secondary hover:text-brand-primary" href="mailto:support@gearfocus.com" target="_blank" rel="noopener noreferrer">support@gearfocus.com</a> or message us on <a class="text-brand-secondary hover:text-brand-primary" href="gearfocus.com" target="_blank" rel="noopener noreferrer">gearfocus.com</a>.</li>
<li>GearFocus will mediate and help negotiate responsibility for transaction fees and shipping.</li>
<li>Our goal is to achieve a fair resolution for both parties.</li>
</ul>
&nbsp;
<h3 class="text-[1.5rem] font-semibold">What Isn&rsquo;t Covered?</h3>
<ul class="text-[1.3rem]">
<li>Claims made after 48 hours of delivery (or 10 days for non-delivery)</li>
<li>Off-platform transactions</li>
<li>Buyer's remorse or returns outside of the seller&rsquo;s policy</li>
<li>Forwarded or re-shipped packages</li>
</ul>
&nbsp;
Questions? Contact us at <a class="text-brand-secondary hover:text-brand-primary" href="mailto:support@gearfocus.com" target="_blank" rel="noopener">support@gearfocus.com</a>.
&nbsp;
At GearFocus, we&rsquo;re committed to building trust and ensuring a smooth experience for all creatives, whether buying or selling.

Canon EF 400mm f4 DO IS II USM Lens

Description

Overview

Shipping & Payments

Ships From US

Buyer Protection

Secure Transactions

Customer Support