The new Canon EF 40mm f/2.8 lens is the second one that Canon has equipped with its new Stepping Motor Technology (STM) system that allows that allows not just fingertip editing, but also the ability to provide continuous tracking of moving objects both rapidly and quietly, making it perfectly able to answer the exigencies of video. According to Canon, this type of motor eliminates the “pump effect” that one sometimes encounters with other systems.
Videographers will particularly appreciate its quietness, along with its electro-magnetic diaphragm (EMD) that allows for accurate and swift shutter control. The shutter consists of 7 circular leaves.
Its optical formula integrates an aspherical lens element that has been treated with a Canon Super Spectra coating.
Available at the end of June 2012 with the trans-standard EF-18-135mm STM, the EF 40mm f/2.8 STM pancake will be offered at a price of 279 € (tax included).
Principal characteristics of the Canon EF 40mm f/2.8 STM
- Angle of view (horizontal, vertical, diagonal): 49°, 34°,57°
- Lens construction (elements/groups): 6/4
- No. of diaphragm blades: 7
- Minimum aperture: 22
- Closest focusing distance (m): 0,3
- Maximum magnification (x): 0,18
- AF actuator: STM
- Filter diameter (mm): 52
- Max. diameter x length (mm): 68.2 x 22.8
- Weight (g): 130
Further readings for the Canon EF 40mm f/2.8 STM Review
To provide photographers with a broader perspective about mobiles, lenses and cameras, here are links to articles, reviews, and analyses of photographic equipment produced by DxOMark, renown websites, magazines or blogs.
Our review of the Canon EF 40mm f/2.8 STM lens. In the latest of our lens reviews brought to you in partnership with DxOMark, we take a look at Canon's slimline 'pancake' prime for its APS-C and full frame SLRs. It's one of the smallest and cheapest lenses currently on the market, and includes a stepper motor for silent focusing during movie recording. But does its small size and low price result in compromised optics? Read our review to find out.
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