Canon EF 40mm f/2.8 STM

Canon EF 40mm f/2.8 STM firmware

Canon · EF 40mm f/2.8 STM · EF 40mm f/2.8 STM · Lens

Latest firmware for the Canon EF 40mm f/2.8 STM is v1.2.0 (April 5, 2016).

Specifications

EF 40mm f/2.8 STM specifications

Focal length
40mm
Maximum aperture
F2.8
Minimum aperture
F22
Type
Prime Lens
Filter thread
52 mm
Elements / groups
6/4
Aperture blades
7
Closest focus
0.3 m
Maximum magnification
0.18×
Stabilisation
No
Autofocus
Yes
Mount
Canon EF
Weight
130 g
Dimensions
22 × 68 mm

Changelog

EF 40mm f/2.8 STM firmware changelog

  1. v1.2.0 first tracked

Firmware history

  1. Version 1.2.0 Latest Released Apr 5, 2016 First seen Jul 10, 2026

    Release notes not published by vendor — see official page.

    Release notes & download

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