SIGMA 45mm F2.8 DG DN

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SIGMA 45mm F2.8 DG DN

SIGMA 45mm F2.8 DG 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

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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 III

Barcode No.
00-85126-93006-6

 

LENS HOOD LH577-01

Barcode No.
00-85126-93727-0

REAR CAP LCR Ⅱ

* The image is for SIGMA.

L-Mount
00-85126-93725-6

Sony E-mount
00-85126-92987-9

Separately Sold Accessories

WR 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.
00-85126-93091-2

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 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

Lens Construction

8 elements in 7 groups

Angle of View

  • 51.3°

Number of Diaphragm Blades

7 (Rounded diaphragm)

Minimum Aperture

F22

Minimum Focusing Distance

24cm / 9.4in.

Maximum Magnification Ratio

1:4

Filter size

φ55mm

Dimensions (Diameter × Length)

  • L-Mount
    φ64.0mm × 46.2mm / φ2.5in. × 1.8in.
  • Sony E-Mount
    φ64.0mm × 48.2mm / φ2.5in. × 1.9in.
  • *The length of a lens is measured from the filter surface to its mount.

Weight

  • L-Mount
    215g / 7.6oz.
  • Sony E-Mount
    230g / 8.1oz.

I series
“Premium Compact Primes”
for mirrorless users

The SIGMA I series features full-frame-compatible lenses that offer mirrorless users a new and better alternative, both in the experience of shooting with the lens and in the impressive results it is able to achieve.
One of the key advantages of mirrorless cameras is their smaller form-factor, and this new 35mm optic is designed to be perfectly matched to these more compact systems without sacrificing performance. This combination of superb optical quality with exceptional portability, not previously possible with DSLR systems, will bring new opportunities to this and future generations of photographers.
Simultaneously, SIGMA is aware that, in this day and age when we have such huge diversity when it comes to what we use to photograph, as represented by smartphones, people look for something more than a mere act of “taking pictures” when they choose to own a camera and lenses.
SIGMA’s excellence in development and processing technologies has been built up since its founding in 1961, and has become further sophisticated with the introduction of the SIGMA Global Vision in 2012. With this as a base, SIGMA has given careful thought how photographers use and enjoy their lenses, including optical design, advanced functionality, build quality and the experience of picking up and using the lens, and with all of this carefully considered, the I series was born.

Beautiful bokeh and rendering that can be enjoyed in every scene

Special impression

With the SIGMA 45mm F2.8 DG DN | Contemporary, bokeh expressions are especially featured. Spherical aberration has been controlled to ensure not only the large bokeh in the front and rear of the subject but also the rear bokeh near the area in focus create a gradient to a soft blur. This lens softens the periphery of blurred images suppressing the double-line bokeh etc. and enhances the three-dimensional impression of the subject with the smooth expressions in the foreground and the background. In addition, its minimum focusing distance of 24cm makes it possible to enjoy shooting snapshots and tabletop photos taking advantage of the angle of view. The design gives consideration to vignetting to achieve beautiful round bokeh and subdue swirly bokeh in the whole bokeh effects.
While this lens produces smooth bokeh effects of which one could say as “classical expression” when the aperture is wide open, it also realizes modern sharp rendering when it is stopped down. It is reassuring to hold this lens as the regular lens for everyday use.

High build quality and outstanding operability


Because this lens is intended for everyday use, particular attention has been given to build quality and operability. The lens barrel incorporating metal material as the main part achieves improved durability. Furthermore, thanks to the aperture ring with the right click feeling, comfortable operability during various shooting styles is ensured. The design gives consideration to MF operations, and a ring of appropriate torque provides good operability.

Metal bayonet hood


The lens hood features aluminium, using the same material as the lens body which has realized high quality and high rigidity.
Furthermore, cared for the click feeling at the time of when removing and attaching, the knurling process featured on the surface provides a superior usability.

High-speed and highly accurate
AF enabled by the stepping motor
The lens is capable of smooth, quiet and high-speed AF made possible by a stepping motor, as well as supports Face/Eye Detection AF and video AF.

Other Features
Rounded diaphragm
The 7-blade rounded diaphragm creates an attractive blur in the out-of-focus areas of the image.

Designed to minimize flare and ghosting
From an early stage in the lens design process, flare and ghosting have been measured to establish an optical design resistant to strong incident light sources such as backlighting. SIGMA’s Super Multi-Layer Coating reduces flare and ghosting to help photographers produce sharp and high contrast images even in backlit conditions.

Mount with Dust and Splash Resistant Structure
The mount features a special sealing to make the lens an excellent choice in a wide variety of conditions.

High-precision, rugged brass bayonet mount
The brass mount combines high precision with rugged construction. Its treated surfaces and enhanced strength contribute to the exceptional durability of the lens.

Compatible with Lens Aberration Correction
Matching the optical characteristics of the lens, this function performs in-camera corrections of peripheral illumination, chromatic aberrations, distortion, and more, to further enhance image quality.

*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).

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—Contemporary, Art, 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

Designed for combination with relatively small full-frame mirrorless cameras, this standard lens pursues easy operability as a regular prime lens by balancing its easy-to-carry size and high optical performance, thereby embodying the Contemporary line’s development concept of “pursuing optimum balance,” and becoming the perfect first lens in the lineup dedicated for full-frame mirrorless cameras.

Additional information

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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