Overview
A unique and indispensable addition to Canon's series of EF lenses, the new EF 40mm f/2.8 STM offers an ultra-slim and lightweight design. Incredibly compact in size, the EF 40mm f/2.8 STM delivers high image quality from the center to the periphery thanks to its advanced lens configuration including an aspherical element, a bright 2.8 aperture, and optimized coatings that minimize ghosting and flare while providing exceptional color balance. The EF 40mm f/2.8 STM's unobtrusive design helps the photographer avoid overwhelming their subjects with a large lens and to remain discreet in sensitive shooting situations with no compromise in performance. Its diminutive design is complemented by features such as a newly developed stepping motor for smooth and quiet continuous AF while capturing video with the Canon EOS Rebel T4i DSLR, a circular aperture (7 blades) for beautiful soft-focus backgrounds, and a short minimum focusing distance of only 0.98 ft./0.30 m.
Features:
- Newly developed STM technology for smooth and quiet continuous AF while shooting video (continuous video autofocus only supported with EOS 70D, Rebel T4i and T5i cameras).
- Lightweight and unobtrusive 4.6 oz lens is less than one inch long.
- Bright f/2.8 aperture is effective in low light situations and provides shallow depth of field focus control.
- High image quality from the center to the periphery thanks to its advanced lens configuration including one aspherical element.
- Optimized coatings that minimize ghosting and flare while providing exceptional color balance
- A circular 7-blade aperture for beautiful soft-focus backgrounds
- Short minimum focusing distance of only 11.81"
- Mounted on a camera with an APS-C sensor, this lens offers a view similar to a 64mm lens in the 35mm format.
Sample Image
Modulation Transfer Function or "MTF" is a measurement of the optical performance potential of a lens.
What's in the Box?
- Canon EF 40mm f/2.8 STM Lens
- E-52 II Lens Cap for 52mm EF-M Lens
- Lens Dust Cap E (Rear)
Setting the Lens
1.) Mounting and Detaching the Lens
2.) Setting the Focus Mode - To shoot in autofocus (AF) mode, set the focus mode switch to AF.
3.)To shoot in manual focus (MF) mode, set the focus mode switch to MF and turn the focusing ring to set the focus
4.) When attaching the hood,securely attach it to the filter mounting thread (52mm) on the front of the lens or to the thread (52mm) on the front of the filter that is already fitted to the lens (excluding older Canon circular polarizing filters that do not have a filter mounting thread on the front). Hood, Filters and Extension Tubes sold separately.
Specifications:
- Focal Length & Maximum Aperture...............40mm, 1:2.8
- Lens Construction......................6 elements in 4 groups
- Diagonal Angle of View .............57°30'
- Focus Adjustment........................STM with Full Lens Extension System
- Closest Focusing Distance.............0.98 ft./0.3m
- Filter Size...............................................52mm
- Max. Diameter x Length, Weight ............ 2.7 x 0.9 inch, 4.6 oz. / 68.2 x 22.8mm, 130g