Sigma 35mm F2 DG Contemporary L-Mount (Black)

Sigma 35mm F2 DG Contemporary L-Mount (Black) - all-metal construction, classic wide standard prime, fast maximum aperture of F2, manual aperture ring, high-speed, accurate autofocus, magnetic lens cap and metal lens hood, mount with dust and splash-resistant structure, designed to minimize flare and ghosting, compatible with Lens Aberration Correction* (*Function available on supported cameras only. Available corrections / functionality may vary depending on camera model).

 

 

 

 

 

I SERIES

 

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.

 

 

 

NEW STANDARDS OF OPTICAL PERFORMANCE FOR THE CONTEMPORARY LINE

 

The 35mm F2 DG Contemporary brings to the table the highest level of optical performance at a maximum aperture of F2 with a lens body of a size that matches a mirrorless system. Axial chromatic aberration, a point of particular concern with a bright lens, is corrected with SLD glass, while an optimal placement of high-refractive index elements provides effective correction of various types of aberration while keeping the amount of glass used to a minimum. The use of three high-precision glass-molded aspherical lenses, which were made possible thanks to advanced production technology at the Aizu factory, Sigma’s only production site. These elements provide correction of spherical aberration and field curvature, and the fluctuation of aberration at the time of focusing. The lens design also provides a very good correction of sagittal coma aberration, making it capable of capturing details fine enough for it to be used for night sky photography. Thanks to cutting edge optical design and advanced processing technology, the 35mm F2 DG Contemporary offers consistent, high resolving power right across the frame.

 

 

 

 

USE OF MULTIPLE HIGH-PRESISION ASPHERICAL GLASS MOLDED LENSES

 

The surface of molds for glass molding, which is a process that forms optical components by pressing glass materials at high temperatures, requires ultra-high precision. Sigma uses high-precision molds whose surfaces are controlled with an accuracy of ±5 nanometers (0.000005 mm) or smaller. High precision aspherical glass molded lenses archives both good aberration correction and compact lens size.

 

 

 

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.

 

 

 

MOUNT WITH DUST AND SPLASH RESISTANT STRUCTURE

 

The lens mount incorporates rubber sealing to protect the mount from dust and water drops.

 

 

 

SPECIFICATIONS

 

Angle of view: Standard
Lens Mount: L-Mount

Focal Length: 35 mm
Sensor Size: Full Frame
Construction: 10 elements in 9 groups
Angle of view: 63.4°
Number of diaphragm blades: 9 (rounded diaphragm)

Maximum aperture: F2
Minimum aperture: F22
Minimum focusing distance: 27 cm
Maximum magnification ratio: 1:5.7
Filter diameter: 58 mm
Dimensions (diameter x length): φ70mm × 65.4mm

Weight: 325 g

Supplied Accessories: Lens Hood LH636-06B, Magnetic Metal Lens Cap LCF58-02 MB, Front Cap LCF-58 IV, Rear Cap LCR III