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Sigma has announced the 50–120mm F2.8 DC OS | Contemporary, an APS-C telephoto zoom for Sony E, Fujifilm X and Canon RF cameras. Sigma says US authorized-dealer availability begins October 22, 2026, at $799. It weighs 390g for Sony E and Fujifilm X, but the Canon RF version is 410g.
What the Sigma 50–120mm F2.8 offers
The lens covers 50–120mm on APS-C cameras, which Sigma describes as approximately 75–180mm in 35mm-equivalent terms. Its maximum aperture stays at F2.8 throughout the zoom range; the minimum aperture is F22. Sigma positions the lens as a compact APS-C alternative for the role of a traditional 70–200mm F2.8, but that comparison describes its intended use and range, not proven equivalence in image quality or handling.
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Sigma says the lens completes its constant-F2.8 APS-C Contemporary zoom trio alongside the 10–18mm F2.8 DC DN and 18–50mm F2.8 DC DN. Sigma’s October 8, 2026 announcement introduces the lens and explains that lineup positioning.
Mount compatibility, weight and dimensions
This is an APS-C lens, so choose the version that matches the camera’s mount. Sigma lists different dimensions and weights by mount:
#1 Best Overall
- This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day limited hardware warranty.
- Designed for APS-C mirrorless camera sensors, the black E PZ 16-50mm f/3.5-5.6 OSS II Lens from Sony offers a versatile full-frame equivalent zoom angle of 24-75mm.
- A variable aperture of f/3.5 to 5.6 helps keep the lens's size and weight to a minimum while accommodating most use cases.
- Quick autofocusing and improved Optical SteadyShot image stabilization counteract handheld camera shake for sharper imagery.
- Four aspherical elements and one Extra-Low Dispersion element ensure high-resolution imagery throughout the zoom range.
| Mount | Weight | Dimensions (diameter × length) |
|---|---|---|
| Sony E | 390g | 66.8 × 99.0mm |
| Fujifilm X | 390g | 66.8 × 99.3mm |
| Canon RF | 410g | 69.0 × 97.0mm |
These are Sigma’s listed specifications, not independently measured figures. The headline 390g figure applies only to the Sony E and Fujifilm X versions. Sigma also lists a 55mm filter size.
Stabilization and other stated features
Sigma rates the optical stabilization at up to 6.5 stops, and at 4.5 stops at the telephoto end. Those are manufacturer ratings, not independent test results. The company also specifies an aperture ring, a linear autofocus motor, and a design intended to minimize focus breathing for video. Its construction is described as dust- and splash-resistant, with a water- and oil-repellent front element. These descriptions are Sigma’s claims; no independent durability or performance testing is available in the announcement materials.
Rank #2
- Wide zoom range (82 - 315mm 35mm equivalent) ideal for sports or nature;Aperture blades : 7
- Internal focusing for smooth, quiet operation - perfect for video capture.Direct manual focus with non-rotating focus ring during AF: ideal for precise, comfortable manual focus adjustments
- Optical Steady Shot image stabilization for stable video capture and low light performance
- Minimum Focus Distance - 3.28 ft, Maximum Magnification ratio - 0.23x
- Angle of view (on APS-C) 28.2° - 7.8°
Close focus and included accessories
Sigma lists minimum focusing distances of 23cm at the wide end and 55cm at the telephoto end. The box includes the LH585-01 lens hood, LCF-55 IV front cap, LCR III rear cap and a pouch.
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Sigma Corporation of America announced a US price of $799 and availability through authorized dealers beginning Thursday, October 22, 2026. The date and price are Sigma’s announced US terms; availability and pricing may change, and the announcement does not establish stock at any particular retailer.
Rank #3
- World’s first 16.6x all-in-one zoom lens for APS-C mirrorless cameras
- Best-in-class, extremely fast and precise AF provided by VXD linear motor focus mechanism
- Maintains high resolving power from the center to the corners throughout the range
- Compact and portable design at 4.9 X 2.9 inches and a weight of just 21.9 ounces
- Moisture-Resistant Construction and Fluorine Coating
Sigma Corporation of America president Mark Amir-Hamzeh said the lens continues the Contemporary line’s focus on compact size and reduced weight, and highlighted its aperture ring as a handling feature not found on its sister lenses. That is the company’s characterization rather than an independent assessment.
For the full mount-specific figures, see Sigma’s product specification page.
Quick Recap
Rank #4
- Constant F2.8 aperture
- Built-In VC image stabilization achieves stability for stills and video
- MOD of 0.19m (7.5”) for amazing close-ups
- AF/MF switch and VC ON/OFF switch on the CANON RF mount
- Firmware updates via TAMRON Lens Utility
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
