Sigma has announced four new models for Global Vision Art and Contemporary lenses ahead of the 2017 CP+ Camera + Photo Imaging Show, which opens tomorrow in Tokyo.
The new Sigma 14mm f/1.8 DG HSM Art lens. (Source: Sigma Photo.)
Designed for cameras with 36 x 24mm sensors, the Sigma 14mm f/1.8 DG HSM Art lens offers an ultra-wide angle of view with a large maximum aperture that is ideal for night photography. The optical design uses 16 elements in 11 groups, including a large 80 millimeter diameter precision-moulded glass aspherical lens as its front element plus three “F”‘ Low Dispersion (FLD) and four Super Low Dispersion (SLD) glass elements. According to Sigma, this technology has made possible the 14mm F1.8 specification””the first of its kind. The f/1.8 maximum aperture supports photography with a very shallow depth of field to make the subject stand out dramatically against a softly blurred background. The lens includes Sigma’s latest autofocus technology and full-time manual override. It measures 95.4 x 126 millimeters (diameter x length) and weighs 1,170 grams
Sigma’s new 135mm f/1.8 DG HSM Art lens, shown with the supplied lens hood. (Source: Sigma Photo.)
Designed for professional photographers using high-resolution ‘full frame’ DSLR cameras, the Sigma 135mm f/1.8 DG HSM Art lens features dust- and splash-proof construction. With an optical design that comprises 13 elements in 10 groups, this lens features two SLD (Super Low Dispersion) glass elements and two FLD (“F” Low Dispersion) glass elements. Together they help minimise chromatic aberrations and deliver ultra-high resolution and clarity throughout the image, even at wide-open aperture. Nine diaphragm blades close to produce a rounded aperture. The 135mm focal length delivers a pleasing compression for portraiture, while the large diameter with f/1.8 brightness makes possible a body shot with an impressive bokeh background. Measuring 91.4 x 114.9 mm, the lens weighs 1,130 grams and has a minimum focus distance of 87.5 cm.
The new 24-70mm f/2.8 DG HSM OS Art lens. (Source: Sigma Photo.)
Sigma’s new 24-70mm f/2.8 DG HSM OS Art lens is the fourth generation model in a popular zoom lens category and features a new optical stabilisation system plus a new hypersonic autofocus motor (HSM) that offers 1.3 times the torque of its predecessor. Designed as a workhorse lens, it has dust- and splash-proof sealing and a lens barrel that contains a large amount of metal but with external moving parts made from thermally stable composite (TSC), which is resistant to thermal expansion and contraction. The optical design contains 19 elements in 14 groups and features three types of exclusive low-dispersion glass offering superior performance: ELD (Extraordinary Low Dispersion), SLD (Special Low Dispersion) and FLD (“F” Low Dispersion). The lens measures 88 x 107.6 mm but its weight has not yet been disclosed.
A new addition to Sigma’s Contemporary line-up is the 100-400mm F5-6.3 DG OS HSM lens, shown here with its hood fitted. (Source: Sigma Photo.)
Sigma’s 100-400mm f/5-6.3 DG OS HSM | Contemporary lens combines high performance with a compact body and suits pros and amateurs alike. Measuring 86.4 x 182.3 mm and weighing 1,160 grams, it comes with all the functions expected of an ultra-telephoto zoom: optical stabiliser (OS), hypersonic motor (HSM) with updated algorithm for fast autofocus, focus limiter ““ and all are customisable with the optional Sigma USB Dock accessory. It is also compatible with Sigma’s latest teleconverters. The optical design consists of 21 elements in 15 groups and includes four SLD glass elements plus an optimised power distribution to help minimise optical aberrations. The lens features a push/pull zoom mechanism in addition to the traditional twist mechanism to improve usability. Its minimum shooting distance is160 cm, with a maximum magnification ratio of 1:3.8. The lens has 9 diaphragm blades and a rounded diaphragm. Although not weatherproof, the mount includes rubber sealing. The Nikon mount version of this lens includes an electromagnetic diaphragm mechanism that allows it to receive the appropriate signals from the camera body. This feature ensures precision diaphragm control and stable Auto Exposure (AE) performance during continuous shooting.
Sigma has yet to reveal the release dates and pricing for these lenses. Full details can be found on the company’s website at https://www.sigma-photo.co.jp/english/new/new_topic.php?id=638