History

    A classic reimagined

    Professional-level performance in a compact package,
    bringing you new creative possibilities.

    The SIGMA I series introduces compact, beautifully designed, high-performance optics for mirrorless camera systems. In its first collection, SIGMA introduces a versatile 35mm prime lens to the Contemporary line-up, which combines excellent resolving power with a small body that is perfectly weighted for mirrorless systems.

    The 35mm F2 DG DN | Contemporary, a classic wide standard prime which photographers would not want to compromise on, comes with a maximum aperture of F2, and offers both compactness and high optical performance. Its modest size and weight make it portable enough to be carried around in a small kitbag for day-to-day shooting, but owing to its outstanding optical quality, wide aperture, and the high quality constructed body which is guaranteed for the I series, it is equally comfortable being used for professional photo such as night sky photography and video works. This all-new wide standard lens is designed for photographers who value the experience of taking a picture just as much as the quality of the results.

    Impression

    Panasonic LUMIX S1R, ISO100, F5, 2.5s ©Liu Bai

    SIGMA fp, ISO3200, F2, 10s ©Go Ando

    SIGMA fp, ISO100, F2, 1/6000s ©Julie Mayfeng

    SIGMA fp, ISO100, F2, 1/1000s ©Julie Mayfeng

    SIGMA fp, ISO200, F2.8, 1/500s ©Pauline Chardin

    Features

    I series|A new photographic experience,
    “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.

    New standards of optical performance for the Contemporary line

    The 35mm F2 DG DN | 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 DN | Contemporary offers consistent, high resolving power right across the frame.

    Use of multiple high-precision 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.

    *Mold for aspherical glass molded lenses

    Exceptional I series build quality
    with a compact form-factor

    All I series lenses have an all-metal construction. The precision-cut aluminum parts not only give the barrel a sleek, stylish finish, but provide superb durability, which improves the quality of the entire product. Metal materials are also used in internal structures that slide with the operation ring for added robustness. These high-precision components crafted with SIGMA’s cutting-edge metalworking technology are also used in SIGMA’s cine lens line-up for professional cinematographers and provides an exquisite feel to touch as well as sound effects, making photographers want to reach for it and play with it over and over again.

    The cover ring between the focus ring and the aperture ring has hairline processing that is also used for the rear cylinder of the Art line. This 1covering functions as a finger hold when attaching or detaching the lens.

    Magnetic metal lens cap

    The 24mm F3.5 DG DN | Contemporary, the 35mm F2 DG DN | Contemporary and the 65mm F2 DG DN | Contemporary of the I series are accompanied by a dedicated magnetic metal lens cap, in addition to a normal plastic cap. This dedicated metal cap clips to the front surface of the lens magnetically. It is no exaggeration to say that this meticulously crafted cap represents the finishing touch for the I series.

    *Cannot be used when a filter is attached.

    Magnetic metal lens cap holder
    (sold separately)

    When a cap is removed from the lens it should have a proper place where it can be kept. Using this as a starting point, a cap holder using the magnetic force of the dedicated cap was created.
    With the cap attached to the ring plate, and the plate clipped to a bag or belt, the cap is always within easy reach and is less likely to get lost. Plus, its elegant design is a stylish addition to a photographer’s equipment.

    Additional features

    Lens construction: 10 elements in 9 groups, with 1 SLD glass and 3 aspherical lenses


    Compatible with high-speed autofocus


    Stepping motor


    Compatible with lens-based optical correction
    *Function available on supported cameras only. Available corrections may vary depending on the camera model.


    Mount with Dust and Splash Resistant Structure


    Super Multi-Layer Coating


    Aperture ring


    Focus Mode Switch


    Lens Hood


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


    Designed to minimize flare and ghosting


    Supports DMF, AF+MF (for Sony E-mount only)


    Inner focus


    9-blade rounded diaphragm


    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—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.

    Specifications

    35mm F2 DG DN | Contemporary

    Lens Construction

    • SLD glass
    • ASPHERICAL LENS

    Lens Construction

    10 elements in 9 groups

    Angle of View

    • 63.4°

    Number of Diaphragm Blades

    9 (Rounded diaphragm)

    Minimum Aperture

    F22

    Minimum Focusing Distance

    27cm / 10.6in.

    Maximum Magnification Ratio

    1:5.7

    Filter size

    φ58mm

    Dimensions (Diameter × Length)

    • L-Mount
      φ70mm × 65.4mm
    • Sony E-Mount
      φ70mm × 67.4mm
    • *The length of a lens is measured from the filter surface to its mount.

    Weight

    • L-Mount
      325g
    • Sony E-Mount
      325g

    Edition Number

    C020

    Supplied Accessories

    Magnetic metal lens cap(FRONT CAP LCF58-01M), Lens Hood (LH636-01) supplied.

    Corresponding AF Mounts / Barcode No.

    • L-Mount
      00-85126-34769-7
    • Sony E-Mount
      00-85126-34765-9

    Technologies

    Performance / Data

    MTF Chart

    Diffraction MTF

    Geometrical MTF

    The MTF chart gives the result at the wide-open aperture
    Spatial frequency S:Sagittal Line M:Meridional Line
    10lp/mm
    30lp/mm

    MTF chart guide

    Product Lineup

    35mm F2 DG DN | Contemporary

    • L-Mount

      Supplied Accessories

      Magnetic metal lens cap(FRONT CAP LCF58-01M), Lens Hood (LH636-01) supplied.

      Barcode No.
      00-85126-34769-7
    • Sony E-mount

      Supplied Accessories

      Magnetic metal lens cap(FRONT CAP LCF58-01M), Lens Hood (LH636-01) supplied.

      Barcode No.
      00-85126-34765-9

    Accessories

    Supplied Accessories

    FRONT CAP LCF58-01M

    Barcode No.
    00-85126-93864-2

    FRONT CAP LCF-58mmⅢ

    Barcode No.
    00-85126-93014-1

    LENS HOOD LH636-01

    Barcode No.
    00-85126-93862-8

    REAR CAP LCR Ⅱ

    * The image is for SIGMA.

    • L-Mount

      Barcode No.
      00-85126-93725-6
    • Sony E-mount

      Barcode No.
      00-85126-92987-9

    Separately Sold Accessories

    LENS CAP HOLDER CH-11

    Barcode No.
    00-85126-93866-6

    USB DOCK UD-11

    • L-Mount

      Barcode No.
      00-85126-87869-6

    PROTECTOR 58mm

    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.
    00-85126-93105-6

    WR PROTECTOR 58mm

    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.
    00-85126-93092-9

    WR UV FILTER 58mm

    UV Water-repellent, Antistatic type. UV filters prevent 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.
    00-85126-93066-0

    WR CIRCULAR PL FILTER 58mm

    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.
    00-85126-93079-0

    Catalogs / Resources

    Manuals / Brochures