Stunning optical performance and attractive bokeh
The SIGMA 90mm F2.8 DG DN | 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 colour bleeding.
A high-precision glass-moulded 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 utilises the camera’s optical correction functionality, which is an advantage of mirrorless systems, SIGMA’s 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.
Sharp optics with beautiful bokeh
The 90mm focal length is perfect for portraits, as it allows for the most flattering perspective on the face. The F2.8 aperture provides plenty of background blur, and the bokeh is rich and attractive, so does not distract the viewer from the in-focus subject. The lens is also ideal for candid wedding and event images. Image: Kazuyuki Hagiwara
Ideal for abstracts and details
Telephoto lenses allow photographers to more easily isolate details in their surroundings, so the 90mm is perfect for abstracts and close-ups. This makes it a useful tool for street photographers, who can get tighter in on a subject and avoid distracting details in the scene. It’s also ultra-small and light so easy to carry around. Image: Alexandre Souetre
Introducing a new photographic experience 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.
SIGMA’s excellence in development and processing technologies has been built up since it was founded in 1961 – actually, this lens is being announced 60 years to the day since SIGMA’s story began – 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.
Exceptional I series build quality in a tiny body
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 SIGMA’s cutting-edge metalworking technology are also used in SIGMA’s cine lens line-up for professional cinematographers and provide a tactile, ergonomic feel that make the lens a pleasure to use.
With an exceptionally small body, which weighs only 295g, the lens is ideal for photographers who need a highly portable optic that isn’t going to weigh them down. At only 46% of the weight of the SIGMA 85mm F1.4 DG DN | A, the 90mm F2.8 DG DN | C is a good alternative for those looking for a portrait prime with high-end optical performance but don’t need such a wide maximum aperture (see image right, to scale).
The 90mm F2.8 DG DN | Contemporary shares the same φ64mm maximum diameter and 55mm filter size as the 24mm F3.5 DG DN | Contemporary and the 45mm F2.8 DG DN | Contemporary, making them a natural trio, especially for filmmakers who use filters more regularly. With a combined weight of only 735grams*, 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.
*The figures are for L-Mount.
Magnetic metal lens cap and metal lens hood
The 90mm F2.8 DG DN | C comes with a carefully machined metal lens hood, a feature not even found on Sigma’s Art series lenses. A large number of grooves called ‘knurling’ are cut in, improving the lens operation by serving as slip resistance and giving the lens a premium look and feel unique to the I Series. A specially chosen plastic was used for the part that connects to the lens to ensure smooth operation.
Included in the box is the regular Sigma plastic lens cap as well as an all-metal magnetic cap (pictured left), which snaps firmly on to the end of the lens. With no requirement for a spring-loaded clasp, the cap has a sleek, minimal finish.
Optional magnetic lens cap holder with carabiner
Available to buy separately is a new lens cap holder, onto which the magnetic metal lens cap can be quickly and easily attached when the lens is in use. This keeps the cap within easy reach and makes it less likely to get lost. Plus, its elegant design is a stylish addition to a photographer’s equipment.
The holder comes with a carabiner so that it can be attached to clothing or a bag strap.
Lens construction: 11 elements in 10 groups, with 5 SLD element and 1 aspherical elements
Compatible with high-speed autofocus
Compatible with lens-based optical correction (supported cameras only. Corrections may vary)
Mount with dust- and splash-proof structure
Super Multi-Layer Coating
Focus Mode Switch
Lens Hood (LH576-02)
Magnetic metal lens cap (LCF55-01M)
Compatible with SIGMA USB DOCK UD-11 (sold separately / for L-Mount only)
Designed to minimise flare and ghosting
Supports DMF, AF+MF (for Sony E-mount only)
Every single lens undergoes SIGMA’s proprietary MTF measuring system ‘A1’
9-blade rounded diaphragm
High-precision, durable brass bayonet mount
‘Made in Japan’ craftsmanship
You'll find our philosophy and craftsmanship in every product
Our new lineup fully expresses our approach to lenses and photography itself. All of our lenses belong to one of three lines—Contemporary, Art, or Sports—all of which share our development philosophy and advanced manufacturing system. High performance, high quality, and high end in every respect, these lenses give people who love photography lasting value and consistent, exciting results. The secret is our passion for craftsmanship that we put into every production process and every product.
Evaluation with Sigma's own MTF measuring system “A1”
We used to measure lens performance with MTF measuring system using conventional sensors. However, we’ve now developed our own proprietary MTF (modulation transfer function) measuring system (A1) using 46-megapixel Foveon direct image sensors. Even previously undetectable high-frequency details are now within the scope of our quality control inspections. The SIGMA 50mm F1.4 DG HSM will all be checked using this “A1” before they are shipped.
* A1: Aizu1
“Made in Japan”
All Sigma’s manufacturing – right down to moulds and parts – with a few exceptions, are carried out under a single integrated production system, entirely in Japan. We are now one of the very few manufacturers whose products are solely “made in Japan”. We like to think our products are somehow imbued with the essence of our homeland, blessed as it is with clean air and water, and focused, hard-working people. We pride ourselves on the authentic quality of Sigma products, born of a marriage between highly attuned expertise and intelligent, advanced technology. Our sophisticated products have satisfied professionals and lovers of photography all over the world because our manufacturing is based on genuine craftsmanship, underpinned by the passion and pride of our experts.
Applicable for the Mount Conversion Service
As an experienced lens manufacturer that has been creating a diverse range of interchangeable lenses, we have started the innovative chargeable service “Mount Conversion Service”. With this service, the mount of your current SIGMA lenses can be changed to another mount of your choice. It gives a new life to your favourite lenses when you wish to use it on a different camera body.
* This “Mount Conversion Service” is different from a normal repair. In order to apply for the service, please contact your nearest authorized subsidiary/distributor of SIGMA.
The perfect mid-telephoto prime for mirrorless.
90mm F2.8 DG DN
|Lens Construction||11 elements in 10 groups|
|Angle of View (35mm)||27 degrees|
|Number of Diaphragm Blades||9 Blades (Rounded diaphragm)|
|Minimum Focusing Distance||50cm|
|Filter Size||Diameter 55mm|
|Dimensions||Diameter 64mm x 59.7|
Corresponding AF Mounts
The perfect mid-telephoto prime for mirrorless.
Diffraction and Geometrical MTF Chart - 90mm F2.8 DG DN
The perfect mid-telephoto prime for mirrorless.
Magnetic metal lens cap FRONT CAP LCF55-01M (55MM I series)
The SIGMA I series features full-frame compatible lenses that offer new value to mirrorless systems. It is the dedicated magnetic metal lens cap crafted without any compromise that completes the concept of the I series, which embodies the quality of the products, the feeling of using it and the pleasure of owning it. In order …
Magnetic metal lens cap holder SIGMA LENS CAP HOLDER CH-11
The magnetic metal cap holder LENS CAP HOLDER CH-11 (sold separately) allows you attach the cap to the strap of your belt or a bag for carrying around hands free. Push your finger through the donut-shaped hole when you remove the cap from the cap holder. Lens cap supplied separately.
Petal Type Lens Hood LH576-01
The knurled surface of the metal hood helps prevent your fingers slipping when attaching and removing the hood. All of the grooves are machined one by one to provide a comfortable, premium grip is important for a good user experience.
Sigma USB Dock UD-11
Designed exclusively for the use with a SIGMA Contemporary, Art, or Sports lens and its accessories, the SIGMA USB DOCK allows users to update firmware and customize settings on lenses in these lineups. As the latest addition to the lineup, the USB DOCK UD-11 is designed for two types of mirrorless camera mounts: the L-Mount …