Tamron 17-28mm F/2.8 Di III RXD (Model A046) — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/tamron-17-28mm-f2-8-di-iii-rxd-a046/ (sheet CC BY 4.0) Basis: Manufacturer specifications (Tamron Americas) Catalog version: 2026-10-20 Overall (mm): length 73, width 73, height 99 - Tamron 17-28mm F/2.8 Di III RXD (Model A046) measures 73 mm in diameter and 99 mm long (2.87 × 3.9 in) per Tamron Americas's specifications. - Filter thread is 67 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 73 mm (2.87 in) Length 99 mm (3.9 in) Filter thread 67 mm Weight 420 g Mount Sony E-mount Model A046 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Tamron Americas: Tamron General Lens Catalog (PDF, specifications table) — web — Publisher's page; dimensions are facts — https://tamron-americas.com/wp-content/uploads/2024/11/all-lenses-1.pdf 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=tamron-17-28mm-f2-8-di-iii-rxd-a046