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Sony E-mount: 18 mm flange focal distance

What is the Sony E-mount flange focal distance? · Standard part · basis: Published numbers only (sources per row); no bayonet geometry is published, so no file

Also called: sony e mount flange distance, e-mount flange focal distance, sony fe mount dimensions, e mount 18mm, sony e mount adapter

Exact dimensions. True size, with no printing tolerance added.

sizes
4 in table

Notes

  • Flange focal distance is the distance from the mount's reference face to the image plane; adapters and extension tubes must add exactly the difference between two mounts' flange distances to keep infinity focus.
  • No file: the bayonet's lug widths, angles, depths and locking geometry are not published by the maker, so nothing is drawn. Only the published numbers are given.

Sony E-mount: 18 mm flange focal distance size chart

parametervaluefrom
flange focal distance18.00 mmFlange focal distance table; XDCAM-User
throat / inner diameternot published by the maker in a source I could verify (left out)—
couplingbayonet—
formatsfull frame (FE) and APS-C (E) lenses share the mount—

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

WikipediaFlange focal distance (table of mounts)webCC BY-SA 4.0 (text); dimensions are facts
XDCAM-User (Alister Chapman)The E in E-mount stands for eighteen (18 mm flange back)webPublisher's page; dimensions are facts

Xem scan

File coming

No downloadable true-size file yet: the published figures do not fix the whole shape, and Xem never guesses a number. A measured scan is planned; request it and it moves up.

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Plain text: sheet.txt · JSON: /api/geometry?object=sony-e-mount

Schematic, not to scale.

Fits with

Canon RF mount: 20 mm flange focal distance, 54 mm diameter3 sizes★ sheet
Nikon Z mount: 16 mm flange focal distance, 55 mm inner diameter3 sizes★ sheet
L-Mount: 20 mm flange focal distance, 51.6 mm diameter3 sizes★ sheet
Lens filter threads: M40.5 × 0.5 to M112, pitch table and thread rings, isometric render of a generated part
Lens filter threads: M40.5 × 0.5 to M112, pitch table and thread rings17 sizes★ 28 files

Questions

What is the Sony E-mount flange distance?

18.00 mm.