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.
Specifications
|
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: |
67ų, 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 |
|
Signal transmission: |
- EOS signal transmission, including 5 types of information (including absolute distance information)
- 1 - Lens mode
- 2 - Lens type
- 3 - Metering information
- 4 - Focal length
- 5 - AF drive information
|
|
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 |
