Canon EF 35mm f/1.4 L USM Front and Rear Cap User Guide
The Canon EF 35mm f/1.4L USM is a large-diameter wide-angle lens with f/1.4 capability that optimises brightness. It is the successor to the EF 24mm f/1.4 USM and further complements the Canon L-series of wide-angle lenses. The optical system includes a polished aspherical lens along with a floating element, providing high image quality with outstanding correction for both wide f/1.4 aperture and aberration effects and outstanding definition over the entire image area. In addition, the lens s ring USM and silent AF operation make it an outstanding L-series lens for both professional and advanced amateur users.
Minimum focusing distance of 30cm, and a maximum magnification of 0.18x. A wide manual focusing ring offers easy focusing, with full-time manual focusing also available. Ring USM plus rear-focusing design for silent, high-speed AF. The optical system uses entirely environment-friendly lead-free glass.
Image size 24x36mm Macro feature None Lens mount type Canon EF mount Focal length, aperture ratio 35mm, 1 1.4 Minimum focusing distance 0.3m Manual focusing Set focus mode switch, operate manual focusing ring (full-time mechanical manual focusing system) Dimensions and weight 79mm diameter x 86mm, 580g (prototype weight) Magnification 0.18x Angle of view at infinity Diagonal (43.2mm) - 63 / Vertical (24mm) - 38 / Horizontal (36mm) - 54 Field 206x136mm Coating Super spectra coating Filter size 72mm diameter, P=0.75mm. Single filter capacity Lens configuration 11 elements in 9 groups (1 polished aspherical surface for G9R2) Aperture blades 8 Aperture control Pulse control with EMD (enabled simultaneously with AF drive) Aperture value/indicator Open f/1.4 (indicator on lens barrel), Minimum f/22 (same for lenses featuring 1/3-stop increments Rotation angle, lens extension 67 , group 2 extension 5.05mm, group 3 extension 6.4mm Drive system Ring USM drive Drive noise 40dB or less (based on Canon s Standard Test Method) Drive speed H and L 0.5 seconds (lens drive speed from infinity to minimum focusing distance, lens-only drive speed) Depth of field markings Provided Focusing range 0.3m to infinity Infrared index Provided Focusing extension mechanism Rear-focusing method, with focusing cam operating the floating elements, groups 2 and 3