Canon 24mm f/1.4 L II USM lens
Pre-Photokina 2008: Along with the EOS 5D Mark II, Canon has announced its latest addition to the EF lens family, the 24mm f/1.4 L II USM fast aperture wide angle prime. The new lens has undergone a complete redesign and now features 13 elements in 10 groups, including two high-precision glass-molded aspheric elements and two UD glass elements, plus a floating focus mechanism to maintain performance across the entire distance range. It also features Canon’s brand-new ‘Sub Wavelength structure Coating’ technology to minimize flare and ghosting, and is sealed against dust and inclement weather.
Canon enhances EF series with new
EF 24mm f/1.4L II USM fast aperture wide-angle prime lens
Amstelveen, The Netherlands, 17 September, 2008: Canon today strengthens its line-up of EF-series lenses with the introduction of a new fast aperture prime lens: the EF 24mm f/1.4L II USM. Replacing the EF 24mm f/1.4L USM, the EF 24mm f/1.4L II USM has been completely redesigned to provide an exacting partner lens to Canon’s new EOS digital SLRs, the EOS 50D and EOS 5D Mark II.
The EF 24mm f/1.4L II USM offers:
- Fast f/1.4 aperture
- Aspherical and UD lens elements for correction of chromatic aberration
- Sub Wavelength structure Coating (SWC) to dramatically reduce ghosting and flare
- Circular aperture for pleasing bokeh
- USM for full-time manual focus
- Lead-free glass (RoHS compliance)
- Lens hood and pouch supplied
Superior image performance
Featuring a 13-element, 10-group lens, the EF 24mm f/1.4L II USM is designed to achieve the highest standards of image quality. Two high-precision GMo aspheric lenses are employed to correct various forms of aberration such as curvature of field and distortion, with a floating mechanism ensuring crisp corner-to-corner detail throughout the focal range. In addition, two UD lenses reduce the chromatic aberration common in wide-angle lenses.
A fast, ultra-large maximum aperture of f/1.4 delivers excellent low-light performance, with the circular aperture offering the potential for creative out-of-focus highlights. A focal length of 24mm and a USM focus motor providing full-time manual focus also make the EF 24mm f/1.4L II USM ideal for situations where a wide-angle, high-performance lens is required.
Advanced lens coating
Reflections off a digital camera’s image sensor can compromise images with ghosting and flare. To help reduce this, the inside of EF 24mm f/1.4L II USM’s front element is treated with Canon’s new Sub Wavelength structure Coating. Developed specifically to work with Canon optics, this anti-reflective coating helps reduce flare and ghosting - for consistently crisp, undistorted images.
Robust build quality
The EF 24mm f/1.4L II USM is designed to withstand the rigours of even the most testing shooting environment – with Canon’s advanced weather and dust sealing making it the perfect choice for photojournalists and landscape photographers.
|Maximum format size||35mm full frame|
|Diagonal Angle of view (FF)||84º|
• 13 elements/10 groups
|Number of diaphragm blades||8|
|Minimum focus||0.25m (9.9 in)|
|Focus method||Rear focus with floating mechanism|
|AF motor type||
• Ring-type ultrasonic
|Supplied accessories||• Front and rear caps
• EW-83K hood
• LP1319 Lens Pouch
|Weight||650g (22.9 oz)|
|Dimensions||93.5mm diameter x 86.9mm length
(3.7 x 3.4 in)
|Lens Mount||Canon EF only|
|Other||• Weather sealed
• Provides distance information for E-TTL II flash metering
The 24mm F1.4 L USM II sees the debut of Canon's new 'Sub Wavelength structure Coating' (SWC) technology. Considered by Canon to be considerably more effective then their existing 'Super Spectra Coating', the new coating is applied to the inside surface of the front lens element, and is designed to minimize flare and ghosting caused by secondary reflections between the sensor surface and the lens elements, which can lead to significant image degradation in digital SLRs.
The new biomimetic coating is inspired by features found within the eyes of moths, and uses a nano-scale structure to reduce dramatically the amount of internally-reflected light in lenses that contain large curve-radius elements. It is therefore particularly effective with fast wideangles such as the new 24mm F1.4L II USM.
How it works
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