Canon EF-S 55-250mm f/4-5.6 IS STM

Canon EF-S 55-250mm f/4-5.6 IS STM firmware

Canon · EF-S 55-250mm f/4-5.6 IS STM · EF-S 55-250mm f/4-5.6 IS STM · Lens

Latest firmware for the Canon EF-S 55-250mm f/4-5.6 IS STM is v1.0.3 (July 22, 2015).

Specifications

EF-S 55-250mm f/4-5.6 IS STM specifications

Focal length
55-250mm
Maximum aperture
F4-5.6
Minimum aperture
F22
Type
Zoom Lens
Filter thread
58 mm
Elements / groups
15/12
Aperture blades
7
Closest focus
0.85 m
Stabilisation
Yes
Autofocus
Yes
Mount
Canon EF-S
Weight
375 g
Dimensions
111 × 70 mm

Changelog

EF-S 55-250mm f/4-5.6 IS STM firmware changelog

  1. v1.0.3 first tracked

Firmware history

  1. Version 1.0.3 Latest Released Jul 22, 2015 First seen Jul 10, 2026
    Show release notes

    Firmware Version 1.0.3​ incorporates the following enhancement.

    1. Improves the autofocus speed when the EF-S 55-250mm f/4-5.6 IS STM is attached to the EOS M3.
    • To mount the EF-S 55-250mm f/4-5.6 IS STM to the EOS M3, the mount adapter EF-EOS M is required.
    • The enhancement in the autofocus speed only applies when the lens is used with the EOS M3. Firmware Version 1.0.3 is for lenses with firmware Version 1.0.2. If the lens firmware is already Version 1.0.3, it is not necessary to update the firmware. Identification procedure If the 3rd digit in the serial number of your lens is either 0, 1, or 2, then it is equipped with firmware Version 1.0.2 e.g. xx0xxxxxxx, xx1xxxxxxx, xx2xxxxxxx Lenses with serial numbers other than those listed above are equipped with firmware Version 1.0.3 or later. Cautions:
    • To update the firmware of the EF-S 55-250mm f/4-5.6 IS STM, the EOS M3 and the mount adapter EF-EOS M are required.
    • If an extension tube is attached, the firmware update may not be carried out successfully, so please make sure to detach the extension tube before performing the firmware update.
    • For this firmware update to be effective, you need to update the firmware of the EOS M3 t​o the latest version (Version 1.0.1 or later). Customers who do not own an EOS M3, but wish to have the firmware of their lenses updated with Firmware Version 1.0.3 are asked to contact the Canon Customer support Center. Q&A: Preparations for a firmware update: Windows After the downloaded compressed file (.zip) is extracted, a firmware folder is created.
    • Extracting the downloaded file: Right-click the zip file, and then select Extract All to extract the file. Preparations for the firmware update: In the folder you downloaded is the firmware (file name: EF010103.lfu / file size: 1,441,844 bytes), and instructions on the update procedures (a PDF file in five languages: Japanese, English, French, Spanish, and Simplified Chinese). Before updating the firmware of your lens, please be sure to carefully confirm your understanding of these instructions.
    Release notes & download

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