Canon RF20mm F1.4 L VCM lens — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/canon-rf-20mm-f1-4-l-vcm/  (sheet CC BY 4.0)
Basis: Manufacturer specifications (Canon Camera Museum (Canon Inc.))
Catalog version: 2026-10-20

Overall (mm): length 76.5, width 76.5, height 99.3
- Canon RF20mm F1.4 L VCM lens measures 76.5 mm in diameter and 99.3 mm long (3.01 × 3.91 in) per Canon Camera Museum (Canon Inc.)'s specifications.
- Filter thread is 67 mm. Use these for lens-cap holders, hood adapters, padded case inserts and storage racks.
- Canon's RF20mm, RF24mm, RF35mm and RF50mm F1.4 L VCM primes share the same 76.5 × 99.3 mm outer size.
- 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  76.5 mm (3.01 in)
Length  99.3 mm (3.91 in)
Filter thread  67 mm
Weight  approx. 519 g
Mount  Canon RF

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Canon Camera Museum (Canon Inc.): RF20mm F1.4 L VCM - Canon Camera Museum — web — Publisher's page; dimensions are facts — https://global.canon/en/c-museum/product/rf548.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-20mm-f1-4-l-vcm