Name: Sigma AF 17-50mm f2.8 DC EX HSM OS Lens Nikon
Brand: Sigma
SKU: UND-09-1320-3 15495240
Price: 193.41 USD
Availability: OutOfStock

Exhibits minimal signs of wear, noticeable only upon close inspection. Fully operational and includes all items shown in the listing photos. The actual item for sale is pictured unless specifically noted otherwise. The condition rating applies to the core item and not any accessories.

Sigma AF 17-50mm f2.8 DC EX HSM OS Lens for Nikon delivers a bright constant aperture, versatile zoom range, and reliable performance. Shop now.

The Sigma DC 17-50mm f/2.8 EX OS HSM is a versatile standard zoom lens designed for APS-C format cameras. It features a constant f/2.8 aperture, optical stabilization, and a Hyper Sonic Motor for fast and quiet autofocus. Ideal for a variety of photography styles, this lens delivers sharp and vibrant images.

Maintains a bright aperture throughout the zoom range, ideal for low-light conditions and achieving shallow depth of field.

Constant f/2.8 Aperture

Reduces camera shake for sharper images, especially in handheld shooting scenarios.

Optical Stabilization (OS)

Ensures fast, smooth, and quiet autofocus performance.

Hyper Sonic Motor (HSM)

Minimizes flare and ghosting for improved contrast and color accuracy.

Multi-Layer Coating

The Sigma DC 17-50mm f/2.8 EX OS HSM is a **zoom** lens designed for **APS-C format DSLR** cameras, covering a **17–50mm** focal length range that spans wide-angle to short telephoto perspectives. The standout feature is its **constant f/2.8 maximum aperture**, which holds steady across the full zoom range — a significant advantage over variable-aperture alternatives when shooting in challenging light or when consistent depth of field is a priority. **Optical image stabilization** is built in to assist with handheld shooting, and the lens supports both **auto and manual focus** modes. The **77mm filter thread** accommodates a wide range of available filters. At **565g**, the lens strikes a practical balance between build and portability for a constant-aperture standard zoom. Mount options include **Canon EF, Nikon F, Sony A, Pentax K, and Sigma SA**, making this lens accessible to photographers across multiple major DSLR platforms. It is classified as a standard focal length range zoom, suited to a variety of everyday shooting scenarios on crop-sensor bodies.

Maintains f/2.8 throughout the entire 17–50mm zoom range, ensuring consistent exposure and depth-of-field control without adjustment as you zoom.

Built-in OS system compensates for camera shake during handheld shooting, particularly useful in low light or at longer focal lengths.

Optical Image Stabilization

Hyper Sonic Motor delivers fast, quiet autofocus with full-time manual focus override without switching out of AF mode.

HSM Autofocus Motor

Engineered specifically for crop-sensor DSLRs, covering an equivalent focal range of approximately 27–80mm in full-frame terms.

APS-C Optimized Design

Covers wide-angle through short telephoto in a single lens, suited for everyday shooting including interiors, portraits, and events.

17–50mm Zoom Range

Accepts widely available 77mm filters for polarizers, ND filters, and lens protection.

77mm Filter Thread

Sigma's EX designation indicates higher-grade optical and mechanical construction compared to standard series lenses.

EX Build Quality

Available in Canon EF, Nikon F, Sony A, Pentax K, and Sigma SA mounts, covering the majority of APS-C DSLR systems.

Broad Mount Compatibility

At 565g, the lens is manageable for extended handheld use without being overly burdensome for a constant-aperture standard zoom.

565g Handling Weight

User Manual

Sigma DC 17-50mm F2.8 EX OS HSM

Sigma 17-50mm f/2.8 Review

Sigma DC 17-50mm F2.8 EX OS HSM Lens

2026-01-30-phase10-sigma

2026-01-30T07:05:33.250Z

Sigma 17-50mm f/2.8 OS HSM lens review (with samples)

Fast zoom lens battle: Canon 17-55 f2.8, Sigma 18-35 f1.8, Tamron 17-50 f2.8 VC, Sigma 17-50 f2.8 OS

Sigma 17-50 2.8 Review

The Sigma AF 17-50mm f2.8 DC EX HSM OS Lens for Nikon is a versatile standard zoom built for photographers who want a bright aperture and flexible range in a compact package. This excellent-condition lens is a strong choice for everyday shooting, portraits, events, and travel, offering dependable performance for a wide variety of subjects. Key Features<ul><li>Versatile Zoom Range: 17-50mm focal length provides a practical field of view for general photography.</li><li>Bright f2.8 Aperture: Constant maximum aperture supports better low-light shooting and attractive background separation.</li><li>Nikon Compatibility: Designed for Nikon DSLR cameras with an F-mount setup.</li><li>HSM Autofocus: Hypersonic Motor autofocus is designed for smooth and responsive focusing.</li><li>OS Stabilization: Optical Stabilizer helps reduce the effects of camera shake.</li><li>EX Series Build: Part of Sigma's EX line, offering a solid, premium-feeling construction.</li><li>Crop-Sensor Coverage: Ideal for photographers using APS-C format Nikon bodies.</li><li>Everyday Utility: A well-rounded zoom that suits portraits, street work, and family photography.</li></ul> If you're looking for a capable, fast standard zoom for your Nikon system, this Sigma 17-50mm f2.8 is ready to deliver flexible results and reliable day-to-day performance.

Continental U.S.

Sigma AF 17-50mm f2.8 DC EX HSM OS Lens Nikon

<h3 class="text-[1.5rem] font-semibold">100% Refund Guarantee for Lost, Damaged, or Misrepresented Items</h3>
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&nbsp;
<h3 class="text-[1.5rem] font-semibold">How It Works:</h3>
Follow These Steps:
<ol class="text-[1.3rem]">
<li>Contact the Seller: If there's an issue, contact the seller within 48 hours of delivery. Many problems can be resolved directly through their return policy. Be sure to provide clear photos or videos when messaging the seller.</li>
<li>Contact GearFocus: If the seller hasn&rsquo;t responded within 24 hours, email us at&nbsp;<a class="text-brand-secondary hover:text-brand-primary" href="mailto:support@gearfocus.com" target="_blank" rel="noopener noreferrer">support@gearfocus.com</a> with supporting documentation (photos, repair estimates, etc.).</li>
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<h3 class="text-[1.5rem] font-semibold">What&rsquo;s Covered?</h3>
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You qualify for a refund if your item is:
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<h3 class="text-[1.5rem] font-semibold">Seller Return Policies &ndash; Know Before You Buy</h3>
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<h3 class="text-[1.5rem] font-semibold">Return Policies Include:</h3>
<ul class="text-[1.3rem]">
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<h3 class="text-[1.5rem] font-semibold">Exceptional Cases &ndash; Returns Outside the Seller&rsquo;s Policy</h3>
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Sigma AF 17-50mm f2.8 DC EX HSM OS Lens Nikon

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