Canon has developed the EF 40mm F/2.8 STM lens with stepper motors for fast, quiet operation when shooting video. The 40mm STM is a pancake prime lens for full frame and APS-C cameras. Feature stepper motors, to enable fast, quiet focus, particularly with the contrast-detection method of autofocus used for live view and video. It has electromagnetic diaphragms – allowing smooth and accurate control over aperture for video shooting.
Price | Specs | Release Date | Where to Buy
EF 40mm EF f/2.8 STM Price
The price for EF 40mm EF f/2.8 STM is $199.
EF 40mm EF f/2.8 STM Specifications
| Principal specifications | ||
| Lens type | Prime lens | |
| Max Format size | 35mm FF | |
| Focal length | 40 mm | |
| Image stabilisation | No | |
| Lens mount | Canon EF | |
| Aperture | ||
| Maximum aperture | F2.8 | |
| Minimum aperture | F22.0 | |
| Aperture ring | No | |
| Number of diaphragm blades | 7 | |
| Optics | ||
| Elements | 6 | |
| Groups | 4 | |
| Focus | ||
| Minimum focus | 0.30 m (11.81″) | |
| Maximum magnification | 0.18 x | |
| Autofocus | Yes | |
| Motor type | Stepper motor | |
| Full time manual | Yes | |
| Focus method | Internal | |
| Distance scale | No | |
| DoF scale | No | |
| Physical | ||
| Weight | 130 g (0.29 lb) | |
| Diameter | 68 mm (2.68″) | |
| Length | 27 mm (1.06″) | |
| Sealing | No | |
| Colour | Black | |
| Filter thread | 52 mm | |
| Tripod collar | No | |
| Other | ||
EF 40mm EF f/2.8 STM Release Date
The EF 40mm EF f/2.8 STM will be available in late June, 2012.
Where to Buy EF 40mm EF f/2.8 STM
| Product | Buy Now |
|---|---|
| Amazon.com: EF 40mm EF f/2.8 STM | Buy Now |
| Adorama.com: EF 40mm EF f/2.8 STM | Buy Now |
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