Sigma 90mm F2.8 DG Full-Frame Contemporary Lens with Manual Aperture Ring (Silver, L Mount)

The full-frame compatible Sigma 90mm F2.8 DG Contemporary Lens in Silver for L Mount introduces fresh value to mirrorless cameras. Its outstanding optical performance, combined with a compact size that complements today's smaller mirrorless models, opens up new possibilities for achieving the perfect shot. Featuring ultra-high resolving power, the Sigma 90mm F2.8 DG Contemporary lens is tailored to meet the demands of advanced high-resolution mirrorless cameras. Its autofocus system utilizes a quiet, high-speed stepping motor, making it ideal for capturing both still images and video. The aperture ring of the lens is designed for helping users to work intuitively.

Five SLD Glass Elements

Constructed with the latest optical advancements, the lens includes five SLD glass elements. This design minimizes axial chromatic aberration that is uncorrectable in-camera, allowing the lens to deliver high-resolution images with clear quality and no color fringing. The presence of a precisely molded aspherical glass lens ensures high resolution and pleasing bokeh. Photographers can enjoy the benefits of shooting with soft, expansive bokeh free from coloration, a characteristic unique to full-frame lens.

Optical Correction Capability

The lens effectively utilizes the optical correction capabilities of mirrorless systems. Sigma's optical designers focused on mitigating aberrations that can only be resolved through optical design, enhancing rendering performance while reducing the lens's size and weight.

Emphasizes Subject

With a minimum focus distance of 50cm and a maximum magnification ratio of 1:5, this lens is ideal for close-up macro-style photography. It emphasizes the subject, enabling photographers to highlight fine details or create more abstract compositions.

Precise Aspherical Glass Molded Lens

The surfaces of molds used for glass molding must be extremely precise. Sigma achieves this by employing high-precision molds with surface control to an accuracy of plus and minus 5 nanometers or less. These precise aspherical glass molded lenses offer excellent aberration correction while maintaining a compact lens design.

Inner Focus System Using Movable Internal Lens Elements

To enhance stability, the inner focus system allows movable internal lens elements to adjust focus without extending the lens barrel's length.

Flare-Reducing Super Multi-Layer Coating

The Super Multi-Layer Coating effectively reduces flare and ghosting by minimizing reflections within the lens. In digital cameras, flare and ghosting can also arise from reflections between the lens surfaces and the image sensor, making multi-layer coating highly effective in ensuring images with exceptional contrast.

Superb Build Quality

Boasting an all-metal construction, this lens features precision-cut aluminum components for both an elegant appearance and impressive durability, enhancing the overall quality of the product. Metal materials are also incorporated into the internal structures that interact with the focus ring for added strength.

Magnetic Metal Lens Cover

Along with a standard plastic cap, the lens comes with a specially designed magnetic metal lens cover. This unique metal cap securely attaches to the front of the lens via magnets. It can be confidently stated that this carefully designed cap serves as the perfect final detail for the lens.

Inner Focus System

Moveable internal lens components that change focus without affecting lens barrel length are used in this lens' construction to improve stability.

Lens Aberration Correction Compatibility

In order to further improve image quality, this feature adjusts chromatic aberrations, distortion, peripheral lighting, and other issues in-camera while matching the optical properties of the lens.

Sigma's Super Multi-Layer Coating

By blocking internal reflections, Sigma's proprietary Super Multi-Layer Coating reduces flare and ghosting. This original technology is present in every lens in the current Sigma lineup. In digital cameras, reflections between the surfaces of the lens and image sensor can also result in flare and ghosting. Sigma's Super Multi-Layer Coating works incredibly well here, delivering images with exceptional contrast.

Aperture Ring and Focus Mode Switch

The purpose of the aperture ring is to facilitate intuitive operation. The focus mode can be changed from AF to MF by using the Focus Mode switch.

Stepping Motor

In addition to supporting Face and Eye Detection AF and video AF, the lens can achieve smooth, silent, and fast AF thanks to a stepping motor. Rubber sealing is incorporated into the lens mount to shield it from water and dust.

Linear and Non-Linear Focus

Mirrorless lens focus movement technique for mirrorless cameras in connection to the focus ring's rotational angle during manual focusing. The degree of focal point movement with 'non-linear focus' changes according to the speed at which the focus ring rotates. With linear focus, the amount of focal point movement is independent of the focus ring rotational speed as long as the focus ring rotational angle stays constant.

Other Highlights

The lens features a rounded diaphragm, and high-speed autofocus compatibility. It works with the Sigma USB DOCK UD-11 (L-Mount only, sold separately) and has a high-precision, durable brass bayonet mount. Supporting DMF and AF plus MF, it is designed to minimize flare and ghosting. Each lens undergoes Sigma's proprietary MTF measuring system and includes a magnetic metal lens cap. Crafted in Aizu, Japan.