Photography Bay - Topic: Canon EF 40mm f/2.8 STM Lens Firmware Update ver. 1.2.0 http://www.photographybay.com/forum/news/canon-ef-40mm-f2-8-stm-lens-firmware-update-ver-1-2-0/ Simple:Press Version 5.2.6 Eric Reagan on Canon EF 40mm f/2.8 STM Lens Firmware Update ver. 1.2.0 http://www.photographybay.com/forum/news/canon-ef-40mm-f2-8-stm-lens-firmware-update-ver-1-2-0/#p269 News http://www.photographybay.com/forum/news/canon-ef-40mm-f2-8-stm-lens-firmware-update-ver-1-2-0/#p269 Canon EF 40mm

Canon has issued a firmware update for the EF 40mm f/2.8 STM lens.

Firmware Version 1.2.0 addresses the following phenomenon.

1. If pressure is applied to the lens barrel while the lens is mounted to the camera (pressure can be applied even while attaching the lens cap or while carrying the…

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