A zoom lens is a type of camera lens that is offers the photographer a useful range of different focal lengths in a single lens. This is in comparison to a prime lens, which only offers a single focal length. A zoom lens allows for quick and easy re-framing of a scene while staying in the same physical position. Sigma offers a line of over 20 zoom lenses for DSLR photographers, ranging from wide angle zoom lenses, supertelephoto zoom lenses, and high-zoom ratio all-in-one lenses for both full-frame (DG) and APS-C (DC) digital cameras.
Our technical product information has been expanded to now include both Geometric and Diffraction MTF charts for new Sigma lenses. You can take a look at the technical information about the new Sigma 18-200mm F3.5-6.3 DC OS HSM | Contemporary lens on the Sigma Global Vision website to see these graphs plotted as part of the total package of information we share to help photographers understand the performance of our lenses.
In case you were ever wondering how many of our smallest lens equal one of our biggest lenses, and how our lenses size up to a cardinal or a 16 oz cup of coffee, we present the Holiday Season 2013 Sigma Lens Comparison Chart! Here’s our entire lens lineup, to scale.
Prime lenses are designed for exceptional imaging at a single focal length. Unlike zoom lenses that easily span a given focal range and variable field of view with a twist of the zoom ring, the field of view and focal length remains constant. If you want to take in less of the surroundings with a given prime lens, you’ve got to physically move closer, and to take in more of the scene, you’ve got to back up. But of course, as you move, the angle of view remains the same all the while.
Nine rounded aperture blades, Optical Stabilizer, 4x constant-aperture zoom for creativity and quick one-lens recompositing all add up to a rock-solid new member of the Sigma Art line of lenses. For photographers looking for a constant-aperture one-lens solution from wide to short tele, the new 24-105mm F4 DG OS HSM | A, there’s a whole lot to love.
Photographers and videographers have been raving about the world’s first constant aperture F1.8 zoom lens, the Sigma 18-35mm F1.8 DC HSM | Art lens since it was originally announced earlier this year, for both its groundbreaking maximum aperture, and its incredible prime-like performance, even wide open at an amazing price. It rocked the charts on DXOMark, besting top-shelf primes at comparable focal lengths, been recognized with a POP Award from PopPhoto.com, and a Gold award from DPReview, among other accolades.
First look at the new Sigam 24-105mm F4 DG OS HSM | Art lens. The newest lens in Sigma’s lineup is a full-frame constant-aperture wide-to-tele zoom with OS.
Exploring the world through the Sigma 18-35mm F1.8 DC HSM | Art lens on the hunt for varying colors and textures, and levels sharpness and blur can create images that are at once new, and yet instantly recognizable. Close-up focusing on a pumpkin, for example, gives a shallow slice of sharpness, and lovely focus fall-off in a composition that’s pure seasonal color. And a single turning leaf backlit by the sun tells the story of autumn in a very different way than a sweeping vista of an entire hillside.
The Sigma 17-70 F2.8-4.0 DC OS HSM | C is the first lens in the Contemporary line originally announced last […]
It was just about a year ago that the Sigma 35mm F1.4 DG HSM | Art lens was announced at Photokina 2012 as part of the Sigma Global Vision. And what a year it has been for this amazing wide, fast prime! This lens quickly won the hearts of both technical reviewers and creative photographers around the world for its amazing optical performance even wide open at F1.4, its design and build, and of course, its incredibly competitive street price.