---
product_id: 50960878
title: "Sigma 17-50mm f2.8 EX DC Optical Stabilised lens for Sony Digital SLR Cameras with APS-C Sensors"
brand: "sigma"
price: "€ 8.27"
currency: EUR
in_stock: false
url: https://www.desertcart.pt/products/50960878-sigma-17-50mm-f2-8-ex-dc-optical-stabilised-lens
store_origin: PT
region: Portugal
---

# Optical Stabilizer enables 4-stop slower shutter speeds Hyper Sonic Motor for fast, silent autofocus Constant f/2.8 aperture for bright shots Sigma 17-50mm f2.8 EX DC Optical Stabilised lens for Sony Digital SLR Cameras with APS-C Sensors

**Brand:** sigma
**Price:** € 8.27
**Availability:** ❌ Out of Stock

## Summary

> 📸 Elevate your Sony APS-C shots with pro-grade speed, clarity & stability!

## Quick Answers

- **What is this?** Sigma 17-50mm f2.8 EX DC Optical Stabilised lens for Sony Digital SLR Cameras with APS-C Sensors by sigma
- **How much does it cost?** € 8.27 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/50960878-sigma-17-50mm-f2-8-ex-dc-optical-stabilised-lens)

## Best For

- sigma enthusiasts

## Why This Product

- Trusted sigma brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pro-Level Clarity:** Two FLD and aspherical elements eliminate chromatic aberrations and distortions for razor-sharp, high-contrast images.
- • **Speedy & Silent Focus:** Hyper Sonic Motor ensures lightning-fast, whisper-quiet autofocus so you stay ready for every decisive shot.
- • **Filter-Friendly Design:** Internal focusing means the front lens doesn’t rotate—perfect for using circular polarizers and petal-shaped lens hoods with ease.
- • **Steady Shots, Anywhere:** Optical Stabilizer technology lets you capture blur-free photos handheld at shutter speeds up to 4 stops slower—never miss the moment.
- • **Bright & Consistent Aperture:** Shoot stunningly sharp images with a constant f/2.8 aperture that excels in low light and creates creamy bokeh.

## Overview

The Sigma 17-50mm f/2.8 EX DC OS HSM is a premium zoom lens designed for Sony APS-C DSLR cameras, featuring a bright constant f/2.8 aperture, advanced optical stabilization for up to 4 stops slower shutter speeds, and a Hyper Sonic Motor for fast, silent autofocus. Its sophisticated optical construction with FLD and aspherical elements delivers sharp, high-contrast images with minimal aberrations. The lens’s internal focusing system supports the use of circular polarizing filters and petal-shaped hoods, making it ideal for landscapes, portraits, and everyday photography with professional-level performance.

## Description

Product Description               Sigma 17-50 mm F2.8 EX DC OS HSM. Fig. 17-50 mm F2.8 EX DC OS HSM. Example image of 17-50 mm F2.8 EX DC OS HSM. Our bright EX standard zoom lens meets all expectations of such a representative of this class. The lens is ideal for taking snapshots, landscapes, group photos, architectural shots or travel photography. The consistently high light intensity guarantees optimal light output and thus allows short shutter speeds that minimise the risk of blurring. The HSM (Hyper Sonic Motor) ensures fast and quiet autofocus and lets you react quickly. The SML (Super Multi Layer) coating prevents ghosting caused by reflections on the sensor surface and delivers images with balanced colour balance. Thanks to the internal focusing, the front lens does not rotate when focusing, so nothing stands in the way of the use of a tulip-shaped lens hood and a circular polarising filter. This bright lens has been developed for digital cameras with APS-C sensor and features Sigma OS (Optical Stabilizer) technology, which allows up to approx. 4 time levels longer from your free hand without shaking your pictures. If the camera system is already equipped with image stabilization, the Hybrid Optical Stabilizer of the lens can be used in place, which also stabilizes the viewfinder image, allowing better control of sharpness and image build-up. Two FLD (F low dispersion) glass elements, whose imaging performance is equivalent to that of fluoride glass, as well as two blank-pressed glass lenses and a hybrid asphere effectively eliminate all colour defects. The lens has an excellent light output and delivers sharp, high-contrast images at all focal lengths even in the open aperture. Thanks to the 7 slats, which allow an almost round aperture, a very pleasant bokeh is created outside the sharpness level. Due to the internal focusing, the front lens does not rotate, which allows the use of a tulip-shaped lens hood and the convenient use of a polarising filter. - Unique design. Exclusive quality, non-slip design, elegant finish - these are the features of our professional rail. The EX symbol characterizes our sophisticated lens series. In addition to the high quality standard, these products are characterised by exclusive focal length ranges and high light intensities. The excellent performance features of Sigma EX lenses, uncompromising design, perfect handling and excellent durability meet the demands of photographers at the highest level. EX lenses - the better choice. - APS-C sensor suitable. First of all, the coating technology and the construction of the DC lenses, whose calculations are based on digital demands, largely prevent light reflections from the sensor on the backward objective lens. In addition, the DC lenses offer impressive image quality despite their low weight and compact size, which meets the demands of digital SLR cameras. These lenses are limited to the angle of view that is only used by most DSLR cameras anyway – to the angle of view of the cameras with a sensor size in the so-called APS-C format. The sensors of most digital SLR cameras are smaller than the 35mm film with its 24x36mm format and have the dimensions of the APS-C film format. Therefore, you cannot use the DC lenses on a full-frame digital camera or an analogue film camera. They inevitably received shadows in the corners of the picture. By limiting the image angle to this APS-C format, it is possible to achieve a considerable image performance with reasonable design effort. The less complex design affects the size and weight of the DC lenses. The lower effort ensures significant cost savings, which we pass on to our customers. With our DCs you get powerful lenses at extremely attractive prices. Left with OS, right without OS When DC series lenses are used on 35mm SLR cameras or digital cameras whose image sensors are larger than APS-C format, vignetting occurs in the image. - Optical stabiliser. Sensors in the lens detect camera movements that can cause blurring in the image, and when combined with a movable suspended lens element, these movements are compensated. As a result, your photographic possibilities are greatly increased when shooting hands free. Stabilized lenses allow you to shoot from your hand 3-4 exposure levels longer than usual. On camera models that are already equipped with a stabilizer, you can choose whether to use the stabiliser of the camera or the lens. Stabilizers in the lens always have the advantage that they also provide you with a stabilised viewfinder image. So nothing stands in the way of an accurate assessment of the image and an exact use of focus. MTF Chart A motor with speed. HSM lenses use a motor driven by ultrasonic waves. This technology gives you a very fast, accurate and almost silent mode of automatic focus. Two different types of HSM ultrasonic drive are used in our lenses. On the one hand, the HSM ring motor, which is mainly installed in the high-quality EX lenses. This HSM drive allows you to manually intervene in the AF operation at any time. On the other hand, an HSM micromotor is mainly used in compact lenses, the so-called all-round zoom lenses. Manual intervention in AF operation is not possible. MTF modulation transfer function. The MTF (modulation transfer function) is one of the measuring methods with which the performance of a lens and its contrast behavior can be determined at different spatial frequencies. The horizontal axis expresses in millimetres the distance of the centre of the image to the edge of the picture, the vertical axis expresses the contrast value (highest value is 1). The information for 10 lines/mm reflects the contrast behavior of the lens (red lines), the values for 30 lines/mm express the resolution (green lines), each with the aperture open. Lines that run parallel to the image circle diameter are called sagittal lines (solid line), transverse lines are called tangential lines (dashed line).                   Manufacturer's Description               A high quality large constant f2.8 aperture standard zoom lensThe optical stabiliser function offers the use of shutter speeds approximatly 4 stops slower than would otherwise be possibileThe fast maximum aperture of f2.8 provides an attractive background blur and improves autofocus speedsTwo FLD ("F"low dispersion) and one aspherical element provide excellent correction for all types of aberationsFull time manual focus overrideThe Super Multi-Layer lens coating reduces flare and ghosting and provides high contrast imagesThe incorporation of Hyper Sonic Motor ensures a quiet and high speed autofocusThe lens has a seven blade rounded diaphragm which creates an attractive blur to the out of focus areas of the imageThe inner focusing system eliminates front lens rotation, making the lens suitable for circular polarising filter3 year UK Warranty

## Features

- A high quality 17-50 mm f2.8 zoom lens with optical stabilisation for Sony Digital SLR Cameras
- Constant fast f2.8 aperture
- Optical stabilisation enables the use of shutter speeds 4 stops slower than would otherwise be possible
- Ideal for landscapes snapshots and other everyday scenes
- Suitable for use with Sony Digital SLR cameras with APS-C sensors

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions L x W x H | 14.6 x 12.2 x 11.8 centimetres |
| Package Weight | 860 g |
| Product Dimensions L x W x H | 9.1 x 8.4 x 8.4 centimetres |
| Item Weight | 544.31 Grams |
| Brand | Sigma |
| Camera Lens | 17-50mm |
| Has image stabilisation | Yes |
| Max Focal Length | 50 Millimetres |
| Min Focal Length | 17 Millimetres |
| Model year | 2010 |
| Plug profile | sony, minolta |
| Objective Lens Diameter | 77 Millimetres |
| Part number | 17-50mm F2.8 EX DC |
| Lens Design | Zoom |
| Focus type | Auto Focus |
| Style | for Sony-A |
| Photo Filter Thread Size | 77 Millimetres |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** Sigma
- **Focal length description:** 17-50 millimeters
- **Lens type:** Standard
- **Compatible mountings:** sony
- **Camera lens description:** 17-50mm
- **Maximum focal length:** 50 Millimetres
- **Minimum focal length:** 17 Millimetres
- **Lens design:** Zoom
- **Focus type:** Auto Focus
- **Lens coating description:** SML coating

## Images

![Sigma 17-50mm f2.8 EX DC Optical Stabilised lens for Sony Digital SLR Cameras with APS-C Sensors - Image 1](https://m.media-amazon.com/images/I/61elzwn0U+L.jpg)
![Sigma 17-50mm f2.8 EX DC Optical Stabilised lens for Sony Digital SLR Cameras with APS-C Sensors - Image 2](https://m.media-amazon.com/images/I/81r4PH6F7TL.jpg)
![Sigma 17-50mm f2.8 EX DC Optical Stabilised lens for Sony Digital SLR Cameras with APS-C Sensors - Image 3](https://m.media-amazon.com/images/I/51EQowVORwL.jpg)
![Sigma 17-50mm f2.8 EX DC Optical Stabilised lens for Sony Digital SLR Cameras with APS-C Sensors - Image 4](https://m.media-amazon.com/images/I/61p8m-siqcL.jpg)
![Sigma 17-50mm f2.8 EX DC Optical Stabilised lens for Sony Digital SLR Cameras with APS-C Sensors - Image 5](https://m.media-amazon.com/images/I/51foZvtqn6L.jpg)

## Available Options

This product comes in different **Style** options.

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-02-07*