Irix 11mm F4 Specs
Announced Feb 20, 2018
•
Wideangle prime lens | Canon EF, Nikon F (FX), Pentax KAF3
| Principal specifications | ||
|---|---|---|
| Lens type | Prime lens | |
| Max Format size | 35mm FF | |
| Focal length | 11 mm | |
| Image stabilization | No | |
| Lens mount | Canon EF, Nikon F (FX), Pentax KAF3 | |
| Aperture | ||
| Maximum aperture | F4 | |
| Minimum aperture | F22 | |
| Aperture ring | Yes | |
| Number of diaphragm blades | 9 | |
| Optics | ||
| Elements | 16 | |
| Groups | 10 | |
| Special elements / coatings | 3 aspherical + 4 HRI + 2 ED elements, Neutrino coating | |
| Focus | ||
| Minimum focus | 0.28 m (11.02″) | |
| Maximum magnification | 0.07× | |
| Autofocus | No | |
| Full time manual | Yes | |
| Focus method | Internal | |
| Distance scale | Yes | |
| DoF scale | Yes | |
| Physical | ||
| Weight | 790 g (1.74 lb) | |
| Diameter | 103 mm (4.06″) | |
| Length | 118 mm (4.65″) | |
| Materials | Composite (Firefly), aluminum-magnesium alloy (Blackstone) | |
| Sealing | Yes | |
| Hood supplied | Yes | |
| Other | ||
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