Sigma today announced the 4 glasses of different ranges of focal lengths: 14 mm, 24-70 mm, 135 mm and 100-400 mm. In most cases we are dealing with a very bright light, each of the lenses for high-resolution and great quality.
ART line of lenses from Sigma is increased by 3 new glasses, so now we can complete the entire greenhouse, only with the help of glasses that manufacturer. Again, it is clear and very interesting. The premiere of two of them already rumored last week.
A Sigma 14 mm f / 1.8 DG HSM
Presented with the widest lens is wide angle lens of 14 mm with the light of f / 1.8, belonging to the famous series of high-quality ART. As befits a line ART Sigma 14mm F1.8 DG HSM offers uncompromising image resolution and with lenses made of special low-dispersion glass, very well corrected color aberrations. Sigma has designed this model for users cameras equipped with arrays of high resolutions. It allows photographers to fully exploit the potential of, among others, 50-millionth dies.For the construction of the lens 16 used in the lens, arranged in 11 groups. It uses up to 10 lenses special. These include elements of SLD lenses, FLD and very complex aspherical lenses, ensuring sharp images also at the edges of the frame. The lens is equipped with 9 rounded diaphragm blades. We can count on the fact that the image will be fully sharp even wide hole.
A Sigma 24-70 mm f / 2.8 DG OS HSM
Lens with focal lengths of 24-70 and a constant f / 2.8 was offered by Sigma for many years. However, the fourth generation of this lens joined the ART series. Significantly improved optics glass, and they are equipped with ultrasonic autofocus motor HSM, which is especially important for filming cameras, for which speed, but also quiet operation of the lens are not particular important. The new lens, we still have to deal with powerful image stabilization, and not without significance is the fact that the model has been sealed.Three SLD (low dispersion) and 4 aspherical lenses, provide minimize any optical aberrations. Lens SIGMA 24-70mm F2.8 DG OS HSM ART is compatible with Sigma converter MC-11. Through it, users of Sony cameras (E) have the possibility of connecting their camera lens mount Canon EF, keeping the work of AF and the transmission of other types of information EXIF, etc.
A Sigma 135 mm f / 1.8 DG HSM
135 mm f / 1.8 is the next model in the series ART. Thanks to this line of lenses provides a wide range of focal lengths – the widest model is a typical ultra-wide lens. On the other hand, 135 mm full frame is a great focal if we think of the portraits, while at the same time enables us to telephoto. Very bright light in conjunction with a 9-blade circular aperture ensures extremely nice bokeh.The lens construction used 13 elements arranged in 10 groups. For the liquidation of color aberrations correspond to lenses made of special low-dispersion glass FLD and SLD. Focusing is performed by the ultrasonic motor HSM .. The drive does not have the classic mechanical connections, the design allows for manual doostrzanie without having to switch to MF mode.
Sigma C 100-400 mm f / 5-6.3 DG OS HSM
The last of the presented models is a typical long telephoto lens, a slightly darker light, which in turn does not include the line ART and Contemporary. The manufacturer placed primarily on the small size for a telephoto lens, which is particularly important when you want to plug it into a small body bezlusterkowca. The filter diameter is 67mm and weighs only 1160 grams.The lens is equipped with four lenses in the Low Dispersion (SLD), which allow you to minimize any optical aberrations. In addition, eliminating the lateral chromatic aberrations that can not be corrected by changing the aperture, SIGMA provides exceptional image quality throughout the zoom range. For quick adjustment of focal lengths, in addition to the normal steering mechanism, the zoom ring uses a mechanism Push / Pull. The minimum shooting distance is 160 centimeters. On the occasion of the premiere manufacturer has not, unfortunately, the price of lenses, nor the exact date of entry into sales. For this information we will have to wait a bit, but you can expect that prices will be astronomical because Sigma accustomed us to a reasonable value for money.