| 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) - 63ø |
| Vertical (24mm) - 38ø |
| Horizontal (36mm) - 54ø |
|
| 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: | 67ø, 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 |
