![]() There are three requirements for outstanding lenses: fine design, precise manufacturing and inspection that ensures compliance with all specifications. These options enable cinematographers to shoot with a wide range of expressive purposes. T1.5 is available in FF High Speed Prime Line, while the High Speed Zoom Line achieves T2 throughout the zoom range. The High Speed Zoom Line is compatible with Super35, the image size standard used by typical digital cinema cameras, while the FF High Speed Prime Line and FF Zoom Line are compatible with a full-frame image circle. Produce an entire work with SIGMA lenses alone.Ĭompatibility has been confirmed with each brand of cinema cameras. The lineup covers everything from wide angle to telephoto. ![]() ![]() While offering the highest image quality in their class, these zoom lenses are compact and offer amazing value. From wide open to standard apertures, this lens is highly flexible, covering the angles of view offered by multiple large-aperture, fixed focal length lenses.The High Speed Zoom Line offers a constant aperture of T2 throughout the zoom range, and their outstanding optical performance makes them fully ready for high-resolution shooting in 6K-8K. In addition, the shallower depth of field makes possible a beautiful bokeh effect in the background, expanding photographic creativity. As compared to a F2.8 lens in the same photographic conditions, it allows the photographer to use a shutter speed that is one stop faster, reducing the influence of camera shake. Its bright viewfinder makes it easy to confirm focus and compose perfect shots. The 18-35mm F1.8 DC HSM next-generation large-aperture standard zoom lens is the world’s first* to deliver F1.8 brightness throughout the zoom range. Although fixed focal lenses have been superior to zoom lenses in terms of f-number brightness and overall performance, they offer only a fixed angle of view, requiring photographers to carry several with them and change lenses as necessary. The downside, however, is that F2.8 has been the limit of zoom lens brightness, forcing photographers to select fixed focal length lenses for brighter f-numbers. Zoom lenses are extremely convenient, providing a wide range of angles of view with just a twist of the zoom ring. Thanks to its hard-earned knowledge of lens design and advanced lens manufacturing techniques, SIGMA has succeeded in creating a lens that offers F1.8 throughout the zoom range, as well as exceptional image quality at wide open aperture. Advanced production technologies have made possible a large-diameter molded glass aspheric lens, which teams up with SLD (Special Low Dispersion) glass elements to optimize power distribution and minimize axial chromatic and spherical aberration and field curvature. Ongoing technological innovation at SIGMA’s Aizu Factory has also contributed to further enhancements in lens production. SIGMA gained this know-how when it developed such super wide angle zoom lenses as the SIGMA12-24mm F4.5-5.6 II DG HSM and SIGMA 8-16mm F4.5-5.6 DC HSM. To minimize astigmatism across the zoom range, SIGMA leveraged its extensive experience in reducing optical aberrations and designing advanced structural elements. As the f-number decreases, so does the depth of focus, making it extremely difficult to minimize spherical aberration, axial chromatic aberration, astigmatism and field curvature. To develop a large aperture zoom lens with a maximum aperture of F1.8, it was necessary to solve a variety of technical challenges.
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