SIGMA 18-50mm F2.8 DC DN

Stunning versatility. A large F2.8...

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SIGMA 18-50mm F2.8 DC DN

SIGMA 18-50mm F2.8 DC DN

Megapixel

24.6MP

Brust Speed

18fps

Stills base ISO

100/640

Weight (Battery & card)

422gm

Crop Zoom function

No

Autofocus

Contrast

Featured

The ultimate ultra-fast wide-angle prime lens for DSLRs

This full-frame optic was the first full-frame 20mm prime ever built with an F1.4 aperture, making it one of the most desirable lenses on the market for astrophotography, weddings and interiors. Not only does the lens allow four times the amount of light on the sensor than an F2.8 lens with the same ISO and shutter speed, but the wide-aperture also creates a very shallow depth-of-field for pronounced subject separation when shooting portraits or closer-up objects.

This full-frame optic was the first full-frame 20mm prime ever built with an F1.4 aperture, making it one of the most desirable lenses on the market for astrophotography, weddings and interiors. Not only does the lens allow four times the amount of light on the sensor than an F2.8 lens with the same ISO and shutter speed, but the wide-aperture also creates a very shallow depth-of-field for pronounced subject separation when shooting portraits or closer-up objects.

Gallery

Check our image gallery

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1

Precision brass mount with seal

Weighing less than 430g each, including battery and SD card, the fp and fp L are exceptionally portable, but deliver a powerful and versatile feature-set for both stills and video.

2

Precision brass mount with seal

Weighing less than 430g each, including battery and SD card, the fp and fp L are exceptionally portable, but deliver a powerful and versatile feature-set for both stills and video.

3

Precision brass mount with seal

Weighing less than 430g each, including battery and SD card, the fp and fp L are exceptionally portable, but deliver a powerful and versatile feature-set for both stills and video.

4

Precision brass mount with seal

Weighing less than 430g each, including battery and SD card, the fp and fp L are exceptionally portable, but deliver a powerful and versatile feature-set for both stills and video.

5

Precision brass mount with seal

Weighing less than 430g each, including battery and SD card, the fp and fp L are exceptionally portable, but deliver a powerful and versatile feature-set for both stills and video.

6

Precision brass mount with seal

Weighing less than 430g each, including battery and SD card, the fp and fp L are exceptionally portable, but deliver a powerful and versatile feature-set for both stills and video.

Tech Specs

Specifications in detail

Supplied Accessories

FRONT CAP LCF-55mm

Barcode No.
00-85126-93006-6

REAR CAP LCR

* The image is for SIGMA.

  • L-Mount
    00-85126-93725-6Sony E-mount
    00-85126-92987-9

LENS HOOD LH582-02

Barcode No.

00-85126-93969-4

 

Separately Sold Accessories

 

PROTECTOR 55mm

Normal type. Protector is developed to protect the lens surface from dirt and dust as well as scratches. It is an ideal filter for regular use as it is completely colorless so does not affect color reproduction.

* Thinner frame wide type.

Barcode No.
00-85126-93104-9

WR PROTECTOR 55mm

Water-repellent, Antistatic type. Protector is developed to protect the lens surface from dirt and dust as well as scratches. It is an ideal filter for regular use as it is completely colorless so does not affect color reproduction.
* Thinner frame wide type.

Barcode No.
00-85126-93091-2

WR UV FILTER  55mm

UV Water-repellent, Antistatic type. UV filter prevents the bluish tone that generates when the weather is fine, by absorbing ultraviolet rays. It is effective in most situations, such as landscape, portrait and general photography on a sunny day. It is also an ideal filter for regular use as it is completely colorless so does not affect color reproduction.

* Thinner frame wide type.

Barcode No.
00-85126-93065-3

WR CIRCULAR PL FILTER 55mm

PL Water-repellent, Antistatic type. Circular PL filter removes the reflection of water surface and glass windows, and increases the contrast in landscape photography.
* Thinner frame wide type.

Barcode No.
00-85126-93078-3

USB DOCK UD-11

L-Mount

00-85126-87869-6

For Support Kindly call us or eMail us

Email: saleschennai@shetalacamera.com
Tel: +91 44 -42125148/58/68
Mobile: +91 98005 98005

Diffraction MTF

 

 

Geometrical MTF

Lens Construction

10 groups, 13 elements (1 SLD and 3 aspherical lenses)

Angle of View

  • 76.5°(W)-31.7°(T)

Number of Diaphragm Blades

7 (rounded diaphragm)

Minimum Aperture

F22

Minimum Focusing Distance

12.1(W)-30(T)cm / 4.8(W)-11.9(T)in.

Maximum Magnification Ratio

1:2.8(W)-1:5(T)

Filter size

φ55mm

Dimensions (Diameter × Length)

  • L-Mount
    φ65.4mm×74.5mm / φ2.6in.×2.9in.
  • Sony E-Mount
    φ61.6mm×76.5mm / φ2.4in.×3.0in.
  • *The length of a lens is measured from the filter surface to its mount.

Weight

  • L-Mount
    290g / 10.2oz.
  • Sony E-Mount
    290g / 10.2oz.

Large F2.8 aperture and superb image quality

The SIGMA 18-50mm F2.8 DC DN | Contemporary covers 27mm to 75mm in the 35mm format, and has a wide aperture of F2.8 throughout the entire zoom range. This makes it easy to achieve blurry backgrounds, which is ideal for shooting attractive portraits and close-ups. The bokeh is smooth and attractive so doesn’t distract from the in-focus subject.

The lens’s three high-precision glass-molded aspherical elements coupled with the minimization of the total number of elements yields superb optical quality without excessive weight, and the use of in-camera aberration correction further eliminates optical imperfections such as distortion and vignetting. This has all been made possible by the latest optical design technology at SIGMA’s only production base in Aizu, where all SIGMA lenses are built.

Exceptionally compact and lightweight body ideal for mirrorless cameras

The SIGMA 18-50mm F2.8 DC DN | Contemporary is remarkably compact, matching the portability of APS-C mirrorless camera bodies. This makes it a perfect workhorse lens that is ideal for general day-to-day use. The lens is currently the smallest and lightest in its class?1, boasting a maximum diameter of f65.4mm, a length of 74.5mm and weight of 290g?2, yet still maintains a constant aperture of F2.8.

To keep the lens as light as possible, SIGMA constructed the body from carefully selected materials. A polycarbonate called Thermally Stable Composite (TSC) was used for the construction of the barrel, which is sleek, robust, and importantly has a thermal conductivity close to that of aluminum. This ensures stable performance and good operability when used in changing temperatures. By deliberately using metal for some of the internal structure, the parts could be much thinner and have a higher rigidity, ensuring the lens can stand up to frequent, heavy use.

*1 As an AF compatible, F2.8 constant aperture zoom lens for APS-C (as of October 2021, by SIGMA)
*2 The values are for L-Mount.

Supports various shooting situations

The SIGMA 18-50mm F2.8 DC DN | Contemporary has fast and near-silent AF that makes it perfectly suited to a range of photographic applications, including shooting in quiet environments, recording videos and capturing fast-moving subjects. This has been achieved by using a stepping motor as the AF actuator. Since it is small and lightweight, it can be used flexibly in situations such as handheld shooting, which requires high mobility, gimbal shooting, one-man operation video shooting and vlogging.

Combined with the “Pocketable Full-Frame” SIGMA fp, the total weight is only 712g, and it can also be useful as a sub-lens for full-frame cameras (used in crop mode) to keep weight down. The 18-50mm F2.8 DC DN | Contemporary, which combines compactness, light weight, high performance, and large aperture, supports a variety of shooting situations, from introductory single-lens mirrorless cameras to video shooting and combination with full-frame cameras.

About the minimum focusing distance
With an emphasis on making the lens as versatile as possible in a wide variety of shooting conditions, SIGMA designed the lens with a minimum focusing distance of 12.1cm and maximum magnification of 1:2.8*, making it also ideal for close-ups.

*The minimum focusing distance and maximum magnification are both values at the wide end. Remove the lens hood from the lens before use when photographing at the minimum focusing distance at the wide-angle end.

xamples of the lens used in combination with
full-frame cameras in APS-C format

SIGMA fp L
Camera Effective Pixels
Approx. 61 MP

SIGMA fp
Camera Effective Pixels
Approx. 24.6 MP

Crop Setting : 6.2K crop
(Equivalent to approx.1.5 the focal length of the lens)
Crop Setting : APS-C crop
(Equivalent to approx.1.5 the focal length of the lens)
Still image Recording Pixels :
6,240 × 4,144
Still image Recording Pixels :
3,840 × 2,560
Movie Recording Pixels :
3,840 x 2,160 (UHD 4K)
Movie Recording Pixels :
3,840 x 2,160 (UHD 4K)

Additional features

Lens construction: 13 elements in 10 groups

Inner focus system

Compatible with high-speed autofocus

Stepping motor

Compatible with
lens aberration correction

*Function available on supported cameras only. Available corrections or auto correction functionality may vary depending on the camera model.
*On cameras where lens aberration correction is controlled with ‘ON’ or ‘OFF’ in the camera menu, please set all aberration correction functions to ‘ON'(AUTO).

Support DMF and AF+MF

Super Multi-Layer Coating

Petal type lens hood(LH582-02)

Mount with dust and splash resistant structure

Compatible with SIGMA USB DOCK UD-11(sold separately / for L-Mount only)

Designed to minimize flare and ghosting

Every single lens undergoes SIGMA’s proprietary MTF measuring system

7-blade rounded diaphragh

High-precision, durable brass bayonet mount

Essentials

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—Art, Contemporary, 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.

Description

SIGMA’s first APS-C size mirrorless zoom lens has a versatile full-frame equivalent zoom range of 27-75mm, which makes it ideal for a wide range of photo and video applications including landscapes, portraits, street photography, architecture and events. It can also be used for macro-style close-up photography owing to its maximum magnification of 1:2.8?1, which allows a minimum focusing distance of just 12.1cm. In terms of its bright F2.8 aperture, it makes for easier hand-held low-light shooting and provides a shallow depth-of-field for high-impact results.

Autofocus is exceptionally fast and quiet thanks to the stepping motor, which can be particularly useful when shooting video, or fast-moving subjects such as children and animals. The lens’ exceptionally small and light form factor that weighs less than 300g makes it perfect as a first interchangeable lens, and as a sub-lens for full-frame bodies?2, as well as for various shooting situations.

*1 The minimum focusing distance and maximum magnification ratio are both values at the wide end.
*2 Please switch to APS-C crop mode when used on full-frame cameras.

Additional information

MOUNT

FUJI X MOUNT, L MOUNT, SONY E

Made in Aizu

All Sigma cameras and lenses are designed, manufactured and assembled at our sole factory at Aizu in Japan. This domestic production model is unusual in today’s industry, with most imaging companies opting to outsource to other countries to reduce costs. But SIGMA believes that keeping virtually all manufacturing, processing and assembly in Aizu is essential for creating innovative, carefully thought-out and impeccably constructed products that meet the high standards demanded by professional photographers and film-makers around the world.

Sigma chose Aizu as its main production base in the early 1970s. Situated at the base of Mount Bandai in the Fukushima Prefecture, about four hours’ drive north of Tokyo, Aizu has an

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