Sigma 10-20mm F3.5 EX DC HSM, Pentax Fit - Main Features:
- Unique to Sigma: Widest range with HSM
- Super-Wide: 10-20 with maximum aperture of F3.5 throughout entire zoom range
- High Image Quality: Two ELD (Extraordinary Low Dispersion) glass elements and a SLD (Special Low Dispersion) glass elements and Four Aspherical lenses
- Includes: Petal-type Hood supplied
Sigma Lens Abbreviations:
- EX (EX Lens)
The exterior of this lens is EX-finished to denote the superior build and optical quality, and to enhance its appearance.
- DC (DC Lens)
These are special lenses designed so that the image circle matches the smaller size of the image sensor of most digital SLR cameras. Their specialized design gives these lenses the ideal properties for digital cameras, including compact and lightweight construction.
- HSM (Hyper-Sonic Motor)
This lens uses a motor driven by ultrasonic waves to provide a quiet, high-speed AF.