{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "canon-rf-28mm-f2-8-stm",
 "name": "Canon RF28mm F2.8 STM lens",
 "kind": "modern",
 "category": "Electronics",
 "group": "Canon RF lenses",
 "year": null,
 "question": "What are the dimensions of the Canon RF28mm F2.8 STM?",
 "tags": [
  "canon rf lenses",
  "lens"
 ],
 "aliases": [
  "Canon RF 28mm pancake dimensions",
  "Canon RF28mm F2.8 STM dimensions",
  "Canon RF28mm F2.8 STM size",
  "Canon RF28mm F2.8 STM length",
  "Canon RF28mm F2.8 STM diameter",
  "Canon RF28mm F2.8 STM filter size",
  "Canon RF28mm F2.8 STM weight",
  "how long is the Canon RF28mm F2.8 STM",
  "Canon RF28mm F2.8 STM lens cap size",
  "dimensiones Canon RF28mm F2.8 STM",
  "medidas Canon RF28mm F2.8 STM",
  "Canon RF28mm F2.8 STM Abmessungen"
 ],
 "overall_mm": {
  "length": 69.2,
  "width": 69.2,
  "height": 24.7
 },
 "official_cad": false,
 "xem_status": "not-scanned",
 "les": false,
 "free_files": 0,
 "url": "https://xemstudio.com/objects/canon-rf-28mm-f2-8-stm/",
 "sheet_txt": "https://xemstudio.com/objects/canon-rf-28mm-f2-8-stm/sheet.txt",
 "sheet": {
  "basis": "Manufacturer specifications (Canon Camera Museum (Canon Inc.))",
  "overall_mm": {
   "length": 69.2,
   "width": 69.2,
   "height": 24.7
  },
  "notes": [
   "Canon RF28mm F2.8 STM lens measures 69.2 mm in diameter and 24.7 mm long (2.72 × 0.97 in) per Canon Camera Museum (Canon Inc.)'s specifications.",
   "Filter thread is 55 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."
  ],
  "table": {
   "columns": [
    "dimension",
    "value"
   ],
   "rows": [
    [
     "Maximum diameter",
     "69.2 mm (2.72 in)"
    ],
    [
     "Length",
     "24.7 mm (0.97 in)"
    ],
    [
     "Filter thread",
     "55 mm"
    ],
    [
     "Weight",
     "approx. 120 g"
    ],
    [
     "Mount",
     "Canon RF"
    ]
   ]
  }
 },
 "sheet_text": "Canon RF28mm F2.8 STM lens — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/canon-rf-28mm-f2-8-stm/  (sheet CC BY 4.0)\nBasis: Manufacturer specifications (Canon Camera Museum (Canon Inc.))\nCatalog version: 2026-10-20\n\nOverall (mm): length 69.2, width 69.2, height 24.7\n- Canon RF28mm F2.8 STM lens measures 69.2 mm in diameter and 24.7 mm long (2.72 × 0.97 in) per Canon Camera Museum (Canon Inc.)'s specifications.\n- Filter thread is 55 mm. Use these for lens-cap holders, hood adapters, padded case inserts and storage racks.\n- 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.\n\ndimension  value\nMaximum diameter  69.2 mm (2.72 in)\nLength  24.7 mm (0.97 in)\nFilter thread  55 mm\nWeight  approx. 120 g\nMount  Canon RF\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Canon Camera Museum (Canon Inc.): RF28mm F2.8 STM - Canon Camera Museum — web — Publisher's page; dimensions are facts — https://global.canon/en/c-museum/product/rf526.html\n\nNo true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.\nAPI: https://xemstudio.com/api/geometry?object=canon-rf-28mm-f2-8-stm\n",
 "sources": [
  {
   "publisher": "Canon Camera Museum (Canon Inc.)",
   "title": "RF28mm F2.8 STM - Canon Camera Museum",
   "url": "https://global.canon/en/c-museum/product/rf526.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "not-scanned",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "camera-thread-bosses-1-4-20",
  "canon-rf-14-35mm-f4-l-is-usm",
  "canon-rf-15-35mm-f2-8-l-is-usm",
  "canon-rf-24-70mm-f2-8-l-is-usm",
  "canon-rf-24-105mm-f4-l-is-usm"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "How big is the Canon RF28mm F2.8 STM?",
   "a": "69.2 mm maximum diameter × 24.7 mm long (2.72 × 0.97 in)."
  },
  {
   "q": "What filter size does the Canon RF28mm F2.8 STM take?",
   "a": "55 mm."
  }
 ],
 "files_license": null,
 "offers": [],
 "markdown": "https://xemstudio.com/objects/canon-rf-28mm-f2-8-stm/index.md"
}