Product Features

• Full-Frame | f/2 to f/22
• Compact Mid-Telephoto Prime
• Fast Internal Focus System
• I Series Lens
• All-Metal Lens Barrel
• Dust & Splash-Resistant Design
• Knurled Focus and Aperture Rings
• Rounded 9-Blade Diaphragm

In the Box

• Sigma 90mm f/2.8 DG Contemporary Lens (Sony E, Black)
• Sigma LCF-55 IV Lens Cap (55mm)
• Sigma LCR III Rear Lens Cap for Sony E
• LH576-05B Lens Hood
• LCF55-02 MB Magnetic Metal Lens Cap

Overview

CAPTURE EVERY INSPIRING MOMENT
Introducing Sigmas all-new, mid-telephoto I series prime for mirrorless systems.
This compact 90mm F2.8 optic is versatile, well-built and offers stunning optical performance, making it perfect for portraits, close-ups, weddings and events.

A brand new 90mm F2.8 DG | Contemporary premium compact prime has been added to Sigmas growing I series range. It joins four existing I series primes as well as the all-new 24mm F2 DG | Contemporary , offering superb optical performance, a bright F2.8 aperture, an all-metal build and a manual aperture ring. Designed especially for mirrorless systems it feels well-balanced on modern full-frame bodies, and boasts exceptional resolving power that can keep up with the latest ultra-high-resolution cameras.

With its versatile mid-telephoto focal length, the lens is the longest I series lens yet, but remains remarkably compact and light so that it is ideal for day-to-day use. It is fully-optimized for mirrorless systems with ultra-fast and accurate AF performance, and it boasts outstanding optical capabilities. The rich, smooth bokeh makes for attractive backgrounds, which is perfect for portraits, and the minimum focusing distance of 50cm allows photographers to get closer to their subject.

This high-quality, everyday lens is able to bring scenes to life with its beautiful rendering and ultra-sharp optics, all in a portable, robust and tactile lens body.

I series Premium Compact Primes for mirrorless users
The Sigma I series features full-frame-compatible lenses that offer mirrorless users a new and better alternative, both in the experience of shooting with the lens and in the impressive results it is able to achieve.

One of the key advantages of mirrorless cameras is their smaller form-factor, and this new 90mm optic is designed to be perfectly matched to these more compact systems without sacrificing performance. This combination of superb optical quality with exceptional portability, not previously possible with DSLR systems, will bring new opportunities to this and future generations of photographers.

Simultaneously, Sigma is aware that, in this day and age when we have such huge diversity when it comes to what we use to photograph, as represented by smartphones, people look for something more than a mere act of taking pictures when they choose to own a camera and lenses.
Sigmas excellence in development and processing technologies has been built up since it was founded in 1961, and has become further sophisticated with the introduction of the Sigma Global Vision in 2012. With this as a base Sigma has given careful thought to how photographers use and enjoy their lenses, including optical design, advanced functionality, build quality and the experience of picking up and using the lens, and with all of this carefully considered the I series was born.

Especially compact even in the I series – wide-angle, standard, and mid-telephoto lenses in the lineup

New standards of optical performance for the Contemporary line
The Sigma 90mm F2.8 DG | Contemporary boasts exceptional optical performance with a ultra-high resolving power to match the latest high-resolution mirrorless cameras.

The lens is built using the very latest optical technology, and includes five SLD glass elements. This helps to reduce axial chromatic aberration that cannot be corrected in-camera, allowing the lens to achieve high resolution and clear image quality with no color bleeding. A high-precision glass molded aspherical lens provides both high resolution and beautiful bokeh. Photographers can enjoy shooting with soft, large bokeh without coloration and this is something that only a full-frame lens is able to deliver.

The lens also utilizes the cameras optical correction functionality, which is an advantage of mirrorless systems, Sigmas optical designers were therefore able to concentrate on correcting aberrations that can only be corrected by the optical design, thereby improving rendering performance and reducing the size and weight of the lens.

With a minimum focusing distance of 50cm and a maximum magnification ratio of 1:5, close-up macro-style photography is possible. The lens highlights the subject, allowing photographers to focus in on fine details or create more abstract compositions.

The AF drive system incorporates a quiet, high-speed stepping motor, making it suitable for still images as well as video recording.

Use of high-precision aspherical glass molded lenses
The surface of molds for glass molding, which is a process that forms optical components by pressing glass materials at high temperatures, requires ultra-high precision. Sigma uses high-precision molds whose surfaces are controlled with an accuracy of 5 nanometers (0.000005 mm) or smaller. High precision aspherical glass molded lenses archives both good aberration correction and compact lens size.

Mold for aspherical glass molded lenses

Exceptional I series build quality with a compact form-factor
All I series lenses have an all-metal construction. The precision-cut aluminum parts not only give the barrel a sleek, stylish finish, but provide superb durability that improves the quality of the entire product. Metal materials are also used in internal structures that slide with the operation ring for added robustness. These high-precision components crafted with Sigmas cutting-edge metalworking technology are also used in Sigmas CINE LENS lineup for professional cinematographers and provide a tactile, ergonomic feel that make the lens a pleasure to use.

The 90mm F2.8 DG | Contemporary shares the same f64mm maximum diameter and 55mm filter size *1 as the 24mm F3.5 DG | Contemporary and the 45mm F2.8 DG | Contemporary , making them a natural trio, especially for filmmakers who use filters more regularly. With a combined weight of only 740g / 26.1oz. *2 , these three lenses (wide-angle, standard, mid-telephoto) can be used in tandem as part of a high-spec and compact camera system that covers a wide range of shooting situations.

*1 In addition to the 90mm F2.8 DG | Contemporary, I series lenses with a f55mm filter thread include the 24mm F3.5 DG | Contemporary, 45mm F2.8 DG | Contemporary, and 17mm F4 DG | Contemporary (as of February 2025).
*2 The figures are for L-Mount.

Magnetic metal lens cap
The I series lenses are accompanied by a dedicated magnetic metal lens cap, in addition to a normal plastic cap. This dedicated metal cap clips to the front surface of the lens magnetically. It is no exaggeration to say that this meticulously crafted cap represents the finishing touch for the I series.

Magnetic metal lens cap holder LENS CAP HOLDER CH-11 (sold separately)
When a cap is removed from the lens it should have a proper place where it can be kept. Using this as a starting point, a cap holder using the magnetic force of the dedicated cap was created.
With the cap attached to the ring plate, and the plate clipped to a bag or belt, the cap is always within easy reach and is less likely to get lost. Plus, its elegant design is a stylish addition to a photographers equipment.