SIGMA 8-16mm F4.5-5.6 DC HSM Pentax

An ultra-wide angle lens designed specifically for digital SLR cameras with an APS-C sensor. It is based on four FLD glass elements, which is a lighter equivalent to fluorite and helps compensate for colour aberration, while the hybrid aspherical lenses and two glass forming elements provide excellent correction of distortion and astigmatism. There is an inner zoom system, as well as a fully functional manual control option. It is the perfect tool for capturing landscapes, architecture, festive events, interiors, journalism photos and more...

Key features

• Designed for digital SLR cameras with an APS-C sensor
• The first wide-angle lens with a minimum focal length of 8mm
• FLD glass with a performance equivalent to that of fluorite
• Equivalent to 12-24mm lens in 35mm format
• Focus from 24cm
• An HSM (ultrasonic motor) allows quiet and high-speed AF
• Multi-layer coating minimizes flare and ghosting

Additional information:
Construction: 15 lenses in 11 groups
Field of View: 114.5° - 75.7°
Maximum magnification: 1:7.8
Number of blades: 7
Dimensions: 75 × 105.7mm (diameter x length)
Weight: 555g

Note:
1) If you use larger sensors than APS-C or a 35mm, you get vignetting.
2) AF will not function with the Pentax ist* series and K100D DSLR cameras that do not support HSM.
3) Does not allow the use of filtres.