Canon RF100-300mm F2.8 L IS USM lens — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/canon-rf-100-300mm-f2-8-l-is-usm/ (sheet CC BY 4.0) Basis: Manufacturer specifications (Canon Europe) Catalog version: 2026-10-20 Overall (mm): length 128, width 128, height 323.4 - Canon RF100-300mm F2.8 L IS USM lens measures 128 mm in diameter and 323.4 mm long (5.04 × 12.73 in) per Canon Europe's specifications. - Filter thread is 112 mm. 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 128 mm (5.04 in) Length 323.4 mm (12.73 in) Filter thread 112 mm Weight 2,590 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-100-300mm-f2-8-l-is-usm