Art
14mm F1.4 DG DN

• Camera Type

  Mirrorless

• Corresponding Mount

  L-Mount, Sony E-mount

• Sensor Format

  Full-frame [DG]

• Lens Construction

  19 elements in 15 groups (3 FLD, 1 SLD, and 4 aspherical elements)

• Angle of View

  114.2°

• Number of Diaphragm Blades

  11 (rounded diaphragm)

• Minimum Aperture

  F16

• Minimum Focusing Distance

  30cm / 11.9in.

• Maximum Magnification Ratio

  1:11.9

• Dimensions (Diameter × Length)

  L-Mount：φ101.4mm × 149.9mm / φ4.0in. × 5.9in.

  Sony E-mount：φ101.4mm × 151.9mm / φ4.0in. × 6.0in.

  * The length of a lens is measured from the filter surface to its mount.

• Weight

  L-Mount：1,170g / 41.3oz.

  Sony E-mount：1,160g / 40.9oz.

• Edition Number

  A023

  The three-digit code on the surface of the lens is to indicate the year the lens was first released.
  (Since it is different from the year of manufacture, the release year and edition number may not match depending on the mount.)

• Supplied Accessories

  ・Case
  ・COVER LENS CAP LC1014-01
  ・REAR CAP LCR II
  ・TRIPOD SOCKET TS-141
  ・PROTECTIVE COVER PT-41
  ・GUIDE PLATE GP-11

• Mount / Product Barcode

  L-Mount：00-85126-45169-1

  Sony E-mount：00-85126-45165-3

• Camera Compatibility

  LINK

• * The appearance and specifications of the product are subject to change.
  * This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation.
  * L-Mount is a registered trademark of Leica Camera AG.

• Ultra wide-angle 14mm with a maximum aperture of F1.4 and outstanding optical performance

  This world-first performance was achieved by applying the best of Sigma’s optical technologies, from the design to the lens manufacturing process. 19 elements in 15 groups, including 1 SLD glass element, 3 FLD glass elements, and 4 aspherical lens elements, make up a luxurious lens configuration. This allows for advanced aberration correction and a high degree of precision in the lens construction. This allows both advanced aberration correction and F1.4 brightness. In particular, sagittal coma flare, which distorts the shape of stars, has been carefully corrected, and even at the widest aperture, the lens delivers high image reproducibility right to the periphery of the image. Ghosting and flare are also thoroughly addressed through both optical design and coatings. This allows for clear, crisp shooting of starry sky and night scenes. Optimized for starscapes, which require extremely high performance, this lens delivers images that exceed expectations in any scene, including landscapes, architecture snapshots, portraits, and indoor photography.

• 

  The largest class φ79mm aspherical lens element

• Abundant functions and accessories to support starscape photography

  The 14mm F1.4 DG DN | Art is equipped with a wealth of features to support starscape photography. This fully backs up the fun of starscape photography.

  

• Tripod Socket

  Includes a detachable tripod socket compatible with Arca-Swiss type. As the 14mm F1.4 DG DN | Art is heavier on the front side, attaching the tripod socket helps it mount on a tripod in a more stable way. The shape is designed to prevent interference even when using the lens heater.

  

• MFL (Manual Focus Lock) Switch

  When the MFL switch is set to “LOCK”, the focus ring operation will be disabled. It prevents focus shift caused by unintentional operation of the focus ring. This is useful for long time exposure photography, etc., where the focus should be fixed.

  

• Lens Heater Retainer

  A lip at the front of the lens prevents the lens heater* from protruding into the front of the lens and causing vignetting on the periphery of the screen.

  *A belt-shaped heater that is wrapped around the lens to prevent condensation from forming inside the lens when the temperature drops.
  *Lens heater is not included.

  

• Rear filter Holder

  A rear filter holder is provided as standard equipment at the lens mount for attaching a sheet-type rear filter. A lock mechanism is also provided to prevent the filter from falling out.

  

• Special front cap with locking mechanism and filter slots

  Includes a cover-type front cap with locking mechanism. It also has newly developed filter slots that can hold two rear filters depending on the application. The cap is specially designed for the 14mm F1.4 DG DN | Art to protect the sheet filters from scratches and dirt while ensuring that they are not mistakenly taken out or forgotten.

  

• Signature Art line features and high build quality

  In addition to functions specifically designed for shooting starscapes, the lens is equipped with various functions to assist in shooting, including an AFL button to which any function can be assigned and an aperture ring. The body is dust and splash resistant, and the frontmost surface of the lens is coated with a water and oil repellent coating, so you can shoot outdoors in harsh environments with peace of mind. The HLA (High-response Linear Actuator) enables high-speed, quiet, and highly accurate autofocusing. In order to maintain performance while supporting a lens with a large aperture, the lens has a robust internal structure and uses lightweight materials such as polycarbonate TSC (Thermally Stable Composite), which has a thermal shrinkage rate equivalent to that of aluminum, and magnesium in appropriate locations to reduce weight while ensuring robustness. The lens body is built with the high build quality of the Art line specifications, allowing the user to fully enjoy the unique performance of the lens in any environment, including shooting starscapes.

  

  *1 When turned ON at the position A, the iris ring is locked at A. When turned ON at a position other than A, it is locked within the range between the maximum to minimum apertures and will not engage at the position A.
  *2 Only on compatible cameras. Available functions may vary depending on the camera used.
  *3 The structure is designed to be dust and splash resistant, but not waterproof. Be careful not to bring the lens in contact with a large amount of water. Water inside the lens may cause major damage and even render the lens unrepairable.

Lens construction

SLD glass

FLD glass

Aspherical lens

• Spatial frequency

  S:Sagittal Line

  M:Meridional Line

• 10lp/mm

• 30lp/mm

Diffraction MTF

Geometrical MTF

• Lens construction: 19 elements in 15 groups (3 FLD, 1 SLD, and 4 aspherical elements)

• Compatible with high-speed autofocus

• Support DMF and AF+MF

• Compatible with AF assist (Sony E-mount only)

• TRIPOD SOCKET TS-141 supplied

• Special front cap with locking mechanism and filter slot: COVER LENS CAP LC1014-01(NEW)

• 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

• 11-blade rounded diaphragm

• High-precision, durable brass bayonet mount