Specifications, comparison, reviews,
MTF-charts for lenses by Canon,
Nikon, Sony, Pentax, Olympus,
Sigma, Tamron, Carl Zeiss, etc.
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Blondine + bag
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Closeup & bokeh
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Owner reviews: Canon EF 40 mm f/ 2.8 STM
Very sharp lens wide open, sharper than the old Canon EF 35mm f/2 (when using the same aperture).
Very compact, very light, very small.
Full time manual focus availlable all time (meanwhile it is powered).
Quiet focus motor.
No DOF scale, no distance scale.
Focus by whire.
Expensive lens hood.
No weather seal.
Slow STM focus motor.
This small lens is very sharp, I'm very happy using it on my full frame camera.
Previously I used a Canon EF 35mm f/2 lens, but this 40mm lens is more sharper, smaller and lighter.
One drawnback for me is the lack of a proper distance and DOF scale, from time to time I like to use a hiperfocal distance in order to shot without focusing, without a proper scale this is a mess.
Another thing I do not like about this lens is the focus by whire, if you focus manually there is a lag between your movement and the movement of the motor. In any case the focus is accurate and smooth.
If do not need a more wider aperture this lens is a bargain for full frame camera users.