Focus drive Stepping motor Aperture (max/min) f/ 2.8 - f/ 22 | Focal length 40 mm Close focus distance 0.98 ft./0.30m | |
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The Canon EF 40mm lens is a standard prime lens that was introduced in June 2012. The lens features a maximum aperture of f/2.8. It was Canon's first EF pancake lens. The EF 40mm was the first EF lens equipped with a stepping motor (STM).
References
Canon EF 40mm lens Wikipedia(Text) CC BY-SA