Canon EF 400mm f/2.8L IS USM

Canon

Canon EF 400mm f/2.8L IS USM

📏 400mm 💡 f/2.8 🔌 Canon EF Mount 🎯 Prime ⚖️ 5370g 📷 IS 🌧️ Sealed

PhotoWorkout Score

Our composite editorial score for this product. Updated 2026-08-01.

How we score ›
ComponentWeightScore
Customer Reviews 35% 87.4
Technical Analysis 30% 66.0
Market Position 20% 65.0
Value Proposition 15% data not available

Age adjustment: ×0.85 (older models get a slight downward adjustment so newer products with current technology are fairly represented).

📖 Overview

The original Canon EF 400mm f/2.8L IS USM is a super-telephoto prime for the Canon EF full-frame DSLR mount, using 17 elements in 13 groups including one fluorite and two UD elements to control chromatic aberration. It pairs a ring-type USM for fast, near-silent autofocus with first-generation 2-mode optical image stabilization and an 8-bladed diaphragm. At roughly 5,370g it is markedly heavier than the 2011 Mark II, with a 3m minimum focusing distance, 0.15x maximum magnification, and a 52mm rear drop-in filter holder.

📸 Browse 13 real-world sample photos taken with this lens by photographers worldwide on SampleShots.

📋 Specifications

Focal Length 400mm
Max Aperture f/2.8
Min Aperture f/32
Lens Type Prime
Mount Canon EF
AF Motor Ring USM
Image Stabilization Yes
Autofocus Yes
Weather Sealed Yes
Min Focus Distance 3000 cm
Max Magnification 0.15x
Elements / Groups 17 elements in 13 groups
Aperture Blades 8
Filter Diameter 52mm
Weight 5370g
Dimensions 163 x 349mm
Release Year 1999

🛒 Where to Buy the Canon EF 400mm f/2.8L IS USM

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🖼️ Sample Photos

Real-world photos taken with the Canon EF 400mm f/2.8L IS USM, sourced from SampleShots.

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