Sony FE 40mm F2.5 G (SEL40F25G) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/sony-fe-40mm-f2-5-g/  (sheet CC BY 4.0)
Basis: Manufacturer specifications (Sony Marketing (Japan))
Catalog version: 2026-10-20

Overall (mm): length 68, width 68, height 45
- Sony FE 40mm F2.5 G (SEL40F25G) measures 68 mm in diameter and 45 mm long (2.68 × 1.77 in) per Sony Marketing (Japan)'s specifications.
- Filter thread is 49 mm. Use these for lens-cap holders, hood adapters, padded case inserts and storage racks.
- Sony's compact FE 24mm F2.8 G, 40mm F2.5 G and 50mm F2.5 G share the same 68 × 45 mm 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  68 mm (2.68 in)
Length  45 mm (1.77 in)
Filter thread  49 mm
Weight  173 g
Mount  Sony E-mount
Model number  SEL40F25G

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Sony Marketing (Japan): Lens & Accessory: E-mount lens / accessory general catalogue (PDF) — web — Publisher's page; dimensions are facts — https://www.sony.jp/products/catalog/alpha_lens.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=sony-fe-40mm-f2-5-g