Sigma is rumored to announce 18-35mm f/1.8 DC HSM lens zoom lens very soon, the lens will feature a constant F1.8 aperture through-out the zoom range, take a look at the detailed specification below
- Designed for APS-C based DSLR cameras
- Ultrasonic autofocus (HSM)
- 9 aperture blades
- Type A (Art), which guarantees quality materials, metal bayonet
- Filter size: 72mm
- Minimum aperture: f/16
- Lens construction: 17 elements in 12 groups
- The maximum magnification ratio: 0.23x
- Weight: 810 grams, length: 121mm
- Angle of view: 76.5 – 44.2°
- Internal zoom and focusing
- Minimal focusing distance: 28cm
This lens is designed for crop factor APS-C DSLR cameras, expected to be announced in next few months.
Source-fotoradce.cz