Overview: The Canon EF 40mm f/2.8 STM
is an ultra-slim, standard single focal point lens. This lightweight lens weighs
only 4.6 oz. (130g).
Compatibility: The EF 40mm f/2.8 STM has a standard Canon EF
mount, and is compatible with all Canon digital SLRs, as well as Canon EOS film SLRs. It has a focal length of 40mm with 35mm film and full-frame digital cameras. With APS-C sensor cameras, the focal length is 64mm.
Lens Construction: The Canon EF 40mm f/2.8 STM lens features a
lens construction with 6 elements in 4 groups.
Diagonal Angle Of View: This Canon standard telephoto lens
provides a diagonal angle of view of 57° 30'.
Auto/Manual Focus: The lens has a minimum focusing distance
of 0.98'. To shoot in Autofocus mode, set the focus
mode switch on the lens to "AF". To manually focus the camera, set the switch to
"MF", and focus by turning the focusing ring. The focusing ring always works,
regardless of the focus mode.
Stepping Motor (STM): The lens provides smooth and quiet
continuous Auto Focus due to the newly developed stepping motor.
Optional Accessories: The lens has a filter diameter of
52mm. Optional filters and a lens hood can be attached to the lens, if desired.
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