The Sony E-mount 90mm f/2.8 DG DN Contemporary Lens from Sigma is a short-telephoto prime with impressive optical performance. It is well-suited for portraiture and selective everyday shooting and offers a fast f/2.8 aperture for controlling depth of field and working in less-than-ideal light. This lens includes an aspherical element and five special low dispersion elements to control a variety of aberrations and achieve notable sharpness and clarity. The lens incorporates a manual aperture ring for enhanced tactility, and also featured is a stepping motor for quick and quiet AF performance. A rounded nine-blade diaphragm lets you achieve pleasingly smooth bokeh, and the lens's all metal body is weather-sealed to suit working in inclement conditions.

E-Mount Lens/Full-Frame Format    Aperture Range: f/2 to f/22    Five SLD Elements    One Aspherical Element    Minimum Focusing Distance: 1.6'    Rounded 9-Blade Diaphragm    All-Metal Barrel Construction    Weather-Sealed Construction

As part of the Contemporary line within Sigma's Global Vision series, this lens is designed to achieve a balance between convenience and performance and meshes a compact, lightweight build and versatile handling with notable optical attributes.

I-series lens emphasizes a sleek and stylish physical design that is built to the same operational standards of Sigma's Cine lenses, including a mechanical aperture ring, knurled metal components, and various switches and tactile controls for intuitive operation.

Short-telephoto 90mm lens is designed for full-frame Sony E-mount mirrorless cameras, however, can also be used with APS-C models where it provides a 135mm equivalent focal length.

Five Special Low Dispersion (SLD) elements markedly reduce chromatic aberrations and color fringing for improved clarity and color accuracy.

One aspherical element helps to control distortion and spherical aberrations for a high degree of sharpness and accurate rendering.

Integrated stepping motor realizes smooth and quiet autofocus, which is further complemented by an internal focusing design to promote greater responsiveness.

Manual aperture ring includes an 'A' position for camera-based aperture selection.

Rounded nine-blade diaphragm contributes to a smooth and pleasing bokeh quality.

Brass bayonet affords improved mounting accuracy and rigidity and rubber sealing is incorporated in the mount's design to render it dust- and splash-resistant.

Related Questions and Answers

Q: 1. When will this be available for Canon 5D MKIV? Also, can I do macro shots with it?

A: Thank you for your interest in Sigma products. This lens is only available for Sony E and L mount mirrorless cameras. Please look at the Sigma 105mm for Canon https://www.bhphotovideo.com/c/product/806377-REG/Sigma_258101_105mm_f_2_8_EX_DG.html?sts=pi&pim=Y or Sigma 70mm F2.8 for Canon https://www.bhphotovideo.com/c/product/1393480-REG/sigma_70mm_f_2_8_dg_macro.html?sts=pi&pim=Y. Both lenses are compatible with your Canon 5D camera

Q: 2. Is this lens compatible with the Sony A6100?

A: Yes Sigma 28-70mm f/2.8 DG DN Contemporary Lens for Sony E is compatible with the Sony A6100.

Q: 3. What does contemporary mean for lenses? Budget? Basic?

A: Signa defines its Contemporary lenses as compact, high-quality, and affordable, to meet the needs of a wide audience of creators who simply want great images.

Q: 4. Is the focus ring compatible with follow focus? Or is an adapter needed?

A: The Sigma 28-70mm f/2.8 DG DN Contemporary Lens for Sony E uses a fly-by-wire system rather than a linear/mechanical helicoid focusing system, so you would probably want an adapter.

Q: 5. How well does the Autofocus work with Sony a7 cameras?

A: The Sigma 90mm f/2.8 DG DN Contemporary Lens for Sony E is a sharp lens and the Autofus is compatible and good with the A7.

Q: 6. Triste sigma is a full frame lens?

A: This lens is for E-Mount Lens/Full-Frame Format.

Q: 7. Is it compatible with the sony a7IV?

A: Yes the Sigma 28-70mm f/2.8 DG DN Contemporary Lens for Sony E is compatible with the Sony A7iv.

Q: 8. where is this lens made?

A: The Sigma 90mm lens is made in Japan.

Q: 9. Use this lens parfocal? And is the focus ring linear or non-linear?

A: No, Sigma lenses are not parfocal. These lenses does not retain the focus if you zoom in or zoom out, however most Sony's E mount cameras provide focus tracking which mantain the subject in focus if your zooming in or out Or you can also locked focus through the camera. Sigma 16-28mm f/2.8 DG DN Contemporary Lens for Sony E has a linear focus ring.

Q: 10. Is this lens good enough to resolve a7R IV 61MP resolution?

A: This lens has great resolving power that can keep up with ultra high resolution cameras like the A7R IV.