Canon RF400mm F2.8 L IS USM lens — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/canon-rf-400mm-f2-8-l-is-usm/  (sheet CC BY 4.0)
Basis: Manufacturer specifications (Canon Europe)
Catalog version: 2026-10-20

Overall (mm): length 163, width 163, height 367
- Canon RF400mm F2.8 L IS USM lens measures 163 mm in diameter and 367 mm long (6.42 × 14.45 in) per Canon Europe's specifications.
- Filter thread is 52 mm drop-in filter. Use these for lens-cap holders, hood adapters, padded case inserts and storage racks.
- No CAD file: the maker publishes only overall sizes, and a plain box or cylinder is not useful design geometry. The table is the published data; parts with real geometry have their own pages.

dimension  value
Maximum diameter  163 mm (6.42 in)
Length  367 mm (14.45 in)
Filter thread  52 mm drop-in filter
Weight  2,890 g
Mount  Canon RF

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Canon Europe: RF Lens Lineup (RF Lens World) — web — Publisher's page; dimensions are facts — https://files.canon-europe.com/files/webcontent/rf-lens-world/features/rf-lineup/index.html

No true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.
API: https://xemstudio.com/api/geometry?object=canon-rf-400mm-f2-8-l-is-usm