Sony FE 300mm F2.8 GM OSS (SEL300F28GM) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/sony-fe-300mm-f2-8-gm-oss/  (sheet CC BY 4.0)
Basis: Manufacturer specifications (Sony Marketing (Japan))
Catalog version: 2026-10-20

Overall (mm): length 124, width 124, height 265
- Sony FE 300mm F2.8 GM OSS (SEL300F28GM) measures 124 mm in diameter and 265 mm long (4.88 × 10.43 in) per Sony Marketing (Japan)'s specifications.
- Filter thread is 40.5 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  124 mm (4.88 in)
Length  265 mm (10.43 in)
Filter thread  40.5 mm
Weight  1,470 g (tripod mount excluded)
Mount  Sony E-mount
Model number  SEL300F28GM
Filter type  drop-in

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-300mm-f2-8-gm-oss