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Canon 2526A004 EF 400mm f/5.6L USM Telephoto Lens — main product image
Canon

Canon 2526A004 EF 400mm f/5.6L USM Telephoto Lens

★★★★★4.2 (226 reviews)

Bring Distant Subjects Closer with Clarity The Canon EF 400mm f/5.6L USM Super Telephoto Lens is designed for photographers who need exceptional reach and image quality. Its lightweight and portable design, combined with superior optics, makes it ideal for capturing wildlife, sports, and other d...

$1,257.86*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

Bring Distant Subjects Closer with Clarity

The Canon EF 400mm f/5.6L USM Super Telephoto Lens is designed for photographers who need exceptional reach and image quality. Its lightweight and portable design, combined with superior optics, makes it ideal for capturing wildlife, sports, and other distant subjects with stunning clarity. With fast and quiet autofocus, this lens delivers professional results in any shooting situation.

Key Features:

  • Focal Length: 400mm
  • Maximum Aperture: f/5.6
  • Lens Construction: Utilizes Super UD and UD-glass elements
  • Autofocus: USM (Ultrasonic Motor) for fast and quiet operation
  • Filter Size: Accepts 77mm filters
  • Tripod Collar: Built-in removable tripod collar

Key Features

Lens construction: 7 elements in 6 groups

Diagonal Angle of View: 6° 10' .Fluorite and Ultra-low Dispersion-glass; internal focusing; full-time manual focus

Closest Focusing Distance: 35m / 115 ft

Focal Length & Maximum Aperture: 400mm 1:56

Filter size: 77mm

Specifications

Focal Length
400mm
Maximum Aperture
f/5.6
Lens Construction
7 elements in 6 groups
Diagonal Angle of View
6° 10'
Closest Focusing Distance
35m / 115 ft
Filter Size
77mm
Glass Type
Fluorite and Ultra-low Dispersion-glass
Focusing System
Internal focusing, full-time manual focus

Pros & Cons

👍 Pros

  • Features a 400mm focal length, providing powerful telephoto capabilities for distant subjects.
  • Incorporates Fluorite and Ultra-low Dispersion-glass elements, designed to deliver high image quality and reduce chromatic aberrations.
  • Utilizes internal focusing, which contributes to faster autofocus performance and allows for constant lens length.
  • Supports full-time manual focus, offering precise control even when autofocus is engaged.
  • The fixed f/5.6 aperture maintains consistent exposure and depth of field when shooting at maximum zoom.

👎 Cons

  • The 400mm fixed focal length, while excellent for telephoto, lacks the versatility of a zoom lens.
  • The f/5.6 maximum aperture, while adequate, may be limiting in very low light conditions compared to faster f/2.8 or f/4 lenses.
  • A closest focusing distance of 35 meters (115 ft) restricts its use for very close-up subjects.
  • The 77mm filter size, while common, requires specific filters which can be an additional cost.
  • The lens construction of 7 elements in 6 groups is relatively simple for a telephoto prime, potentially indicating areas for optical improvement.

Frequently Asked Questions

The Canon EF 400mm lens has a fixed focal length of 400mm and a maximum aperture of f/5.6.
This lens incorporates Fluorite and Ultra-low Dispersion-glass elements to enhance image quality and minimize aberrations.
The closest focusing distance for this lens is 35 meters or 115 feet.
Yes, the lens features full-time manual focus, allowing for manual adjustments even when autofocus is engaged.
The filter size required for the Canon EF 400mm f/5.6L USM lens is 77mm.
The lens construction consists of 7 elements arranged in 6 groups.

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