Sigma 50-100mm f1.8 DC HSM Art Lens

The Sigma 50-100mm f1.8 DC HSM lens joins Sigma's Global Vision Art series of fast-aperture lenses with a mid-tele zoom designed for APS-C DSLR bodies. Delivering prime lens-level image quality and a large f1.8 aperture throughout the zoom range, this lens is perfect for a variety of genres including travel, wedding, events, portrait, sports and action photography.

A high performance wide-aperture 2x zoom lens

• Fast zoom lens for APS-C format DSLRs
• Ideal for: Creative, Travel, Wedding & Events, Portrait, Sports & Action
• Beautiful bokeh effect and incredible image sharpness
• F1.8 throughout the entire zoom range
• Updated and enhanced HSM motor - quiet and smooth
• Fast and smooth AF
• 3 FLD and 1 SLD elements
• New 'Art' Global Vision lens
• Includes: Lens hood
• Minimum focus distance: 0.95 m
• 21 lens elements in 15 groups
• Filter size: 82mm
• Dimensions: 9.4 x 17.1 cm
• Weight: 1490 g

FLD glass, SLD glass, and high-refractive index, high-dispersion glass help minimize aberrations - To help minimise axial and transverse chromatic aberration, this lens features an optimal arrangement of three FLD ('F' Low Dispersion) glass elements, one SLD (Special Low Dispersion) glass element, three high-refractive index SLD glass elements, and one high-refractive index, high-dispersion glass element. By including one or more low-dispersion elements in every element group, this lens ensures outstanding image quality throughout the zoom and focal range. * FLD glass is ultra-low-dispersion glass that offers the performance of the highest level. Highly transparent, its refractive index and dispersion are extremely low as compared to conventional types of glass. It offers characteristics very similar to those of fluorite, which is valued for its high anomalous dispersion. These characteristics minimise residual chromatic aberration (secondary spectrum), which cannot be corrected by the ordinary optical glass while helping to produce sharp, high-contrast images.

Designed to minimize flare and ghosting - From the start of the design process, SIGMA measured flare and ghosting to establish an optical design that is resistant to strong incidental light sources such as backlight.

Featuring a newly designed Hyper Sonic Motor - To achieve outstanding image quality and F1.8 brightness, SIGMA has enhanced its Hyper Sonic Motor (HSM). Optimizing the layout as well as the shapes of the individual parts, SIGMA has made the HSM 30 per cent slimmer than before. In turn, this slimmer HSM has made possible the combination of F1.8 brightness and high image quality in a zoom lens.

Diaphragm unit designed for smooth operation - The diameter of the diaphragm is the second-largest in the SIGMA lens lineup after that of the SIGMA 200-500mm F2.8 / 400-1000mm F5.6 EX DG, necessitating smoother and quicker operation than ever before. To achieve this goal, the diaphragm blades feature Carbon Feather film, and the diaphragm unit features a new polycarbonate made with fluorine. Thanks to these innovations, diaphragm operation is exceptionally smooth even during continuous shooting, while the new polycarbonate is exceptionally durable and wear-resistant.

Inner focus and inner zoom - Since its release, the SIGMA 18-35mm F1.8 DC HSM Art has been widely used for videography. Understanding that the SIGMA 18-35mm F1.8 DC HSM Art and the new SIGMA 50-100mm F1.8 DC HSM Art will often be used together, SIGMA has made the style of operation the same for both lenses, including the feel of focusing and zooming. Thanks to SIGMA's inner focus and inner zoom technologies, adjusting the focus and zoom rings does not change the length of the lens, and turning the zoom ring is not prone to causing focus shift.

Tripod socket designed for stable, comfortable operation - The tripod socket is compact, making operation more stable and comfortable during handheld photography. Parts with electro-less nickel plating help ensure the quality and durability of the 90-degree click stops and smooth switching between the horizontal and vertical positions. The shape of the socket also enhances ease of handling and carrying when the lens is not attached to a camera.

Extra-long Hood (Supplied) - The included lens hood is extra-long and features an anti-reflective coating to manage unwanted light. The hood also features rubber and anti-slip textures to make it easier for the photographer to hold while shooting.

TSC used for a more compact structure and enhanced performance - Since the new material Thermally Stable Composite (TSC) is highly elastic, it exhibits minimal deformation. Parts made of TSC are therefore less prone to develop gaps between each other over time. The SIGMA 30mm F1.4 DC DN Contemporary features a lens barrel and aperture parts made of TSC, which contribute both to the compactness of the lens and the smooth functioning of the aperture system.

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