The is a high-performance APS-C constant aperture format lens. A great choice for sports and portrait photographers, especially those working in low–light situations. The Sigma 50-100 is a professional grade lens with incredible brightness and resolution. We got the chance to take some pictures with this ground-breaking lens that is the first telephoto zoom lens of its kind. We tested our 50-100 lens.

The Sigma 50-100 F/1.8 lens is the 35mm equivalent of a 75-150mm mid-range zoom lens when mounted on an APS-C camera. This provides great versatility in just one lens, covering three popular prime lens focal lengths: 85mm, 105mm, and 135mm.

The extra brightness and resolution provided throughout the zoom will prove indispensable for low-light situations, but one of the best displays of the versatility of this lens is its ability to also maintain focus during zoom – videographers rejoice!

What’s very obvious as soon as you unpack the lens is the build quality. The lens is a bit on the heavier side, but not too heavy that it would become a problem to use. What’s underneath that lens housing? A lot of glass! The 50-100 features 21 elements in 15 groups, and, explains Sigma, features a “highly durable polycarbonate diaphragm made with fluorine; blades feature carbon feather film offering exceptionally smooth operation even during continuous shooting.”

Sigma says the lens was redesigned and enhanced to feature a Hyper Sonic Motor that is 30% slimmer than other lenses and provides fast and accurate AF.

This fast, bright lens captures quick action shots like being able to freeze the action of a skateboarder in mid-air while leaving the aperture wide open at F/1.8 for a nice blurred background, accentuating the action.

Sigma 50-100mm F1.8 DC HSM Art

Building on the groundbreaking Sigma Global Vision 18-35mm F1.8 DC HSM Art Lens, the new Sigma 50-100 F1.8 (75-150mm on 35mm format) mid-range zoom lens embodies the same engineering prowess to deliver outstanding prime lens-like results. Factoring in the APS-C image circle of 1.5x, the 50-100mm F1.8 covers three popular short tele prime focal lengths: 85mm, 105mm and 135mm. Like the 18-35mm F1.8, the new 50-100mm F1.8 maintains a constant F1.8 aperture yielding exceptional brightness and resolution throughout the zoom, while simultaneously maintaining focus as the lens is zoomed, a feature videographers will greatly appreciate.
Sigma 50-100mm F1.8 DC HSM Art
Sigma Art Line Image Technology Innovation

Sigma Art Line Image Technology Innovation features three FLD (F Low Dispersion) glass elements, one SLD (Special Low Dispersion) glass element, and one high-refractive index, high-dispersion glass element to minimize aberrations. It has been redesigned and enhanced, the new Hyper Sonic Motor is 30% slimmer and provides fast and accurate AF. It has a highly durable polycarbonate diaphragm made with fluorine; blades feature carbon feather film offering exceptionally smooth operation even during continuous shooting.
Sigma Art Line Image Technology Innovation
Outstanding Zoom Lens Maneuverability

Its inner focusing and zoom design offer versatile shooting options and it has a tripod socket for stable, comfortable operation. This lens features 21 elements / 15 groups, Minimum Aperture: F1.6, 82mm filter thread, Minimum Focus Distance: 37.4in, Dimensions: 3.7x6.7, Weight: 52.6oz. Sigma Global Vision lenses including the new 50-100mm F1.8 DC Art and 30mm F1.4 Contemporary lenses can be updated with the latest lens software from a workstation or laptop using the Sigma Optimization Pro software and Sigma USB Dock (sold separately).
Outstanding Zoom Lens Maneuverability
Tested for Optimum Performance

Sigma lenses are born of well-thought-out design concepts, exceptional Japanese craftsmanship and manufacturing, and advanced lens performance testing and evaluation. To this end, Sigma has developed its own A1 proprietary MTF (modulation transfer function) measuring system using 46-megapixel Foveon direct image sensors. Even the most elusive high-frequency details are within the scope of Sigma's quality control inspections. Every Global Vision lens is A1 tested, analyzed and approved before leaving the factory ensuring maximum performance out of the box.