Canon EF24mm
f/1.4LII USM lens
This new wide-angle lens offers far more than a cosmetic makeover to the highly acclaimed
EF 24mm f/1.4L USM lens it replaces,and it retains the distinction of being the brightest
wide-angle L-series lens in its class. Added professional characteristics include dustproof
and weatherproof construction, with dramatic improvements to image quality provided by a
total optical re-design and the application of Canon’s exclusive Subwavelength Structure
Coating (SWC) to the inside surface of the large front lens element.This special coating is
designed to minimize ghosting and flare,especiall y from extreme off-angle light rays.It
combines with traditional Super Spectra multi-coating, to give the lens unprecedented
resistance to internal reflections and flare.
Ultra-low Dispersion (UD) glass lens elements were also added in order to reduce chromatic
aberrations,and a high speed CPU and improved algorithms make possible a faster and quieter
autofocusing system.Combined with two aspheric al lens elements,the lens offers significant
improvements in image quality and contrast,especially at the outer edges of the image when used
on full-frame digital SLRs.A circular aperture means beautiful out-of-focus highlights in back-
grounds.This new lens targets the critical professional photographer, and should be especially
prized by users of high-resolution full-frame digital cameras like the new EOS 5D Mark II.
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VII.NEW ACCESSORIES AND LENSES
Lens mount index
Depth-on-field scale
Distance scale
Distance Index
Infrared index
Focusing Ring
Focus mode switch
Contact
Distance scale
window
Hood Mount
(Bayonet)
EMD Ring USM
SWC-treated surface 90.8mm BF=38.5mm
Image plane
Diaphragm
GMo aspherical lens
Focusing lens group (2nd lens group) Focusing lens group (3rd lens group)
UD lens
ExternalView, Cross Section and Optical System ofof EF 24mm f/1.4L II USM