Optical Stabilization (OS) provides compensation for camera movement and delivers clear, blur-free images when shooting telephoto and in low light. A Special Low Dispersion Glass element and three aspherical elements, including one double-sided aspherical lens, reduce chromatic aberration and provide sharp imaging throughout the zoom range. Super Multi-layer Lens Coating reduces flare and ghosting and an included petal-type lens hood will deflect unwanted light from entering the lens. A Hyper Sonic Motor (HSM) allows for smooth and silent autofocus which is particularly desirable when shooting video with your DSLR.
At 3.5" (8.9 cm) long, it is a very compact lens for its wide focal range and Thermally Stable Composite (TSC) construction and a brass mount offer durability and consistent functionality in varying temperatures and situations.
The Sigma EF610 DG ST Flash for Pentax is a hot-shoe mount flash unit with TTL automatic flash exposure and an auto zoom function that adjusts the flash angle based on the chosen focal length of the lens (from 24-105mm). A built-in wide panel extends the flash angle to 17mm for wide-angle shooting. Manual control is also available to control the flash power from full to 1/16 power. The Guide Number for the EF610 is 61 m at ISO 100 and 105mm.
The flash head can be tilted up 90º and down 7º and swivelled 90º to the right and 180º to the left for flexible bounce control.
This Kit Includes:
- Sigma EF-610 DG ST Flash for Pentax Cameras