Sigma 15mm f1.4 DG DN Diagonal Fisheye Art Reserve

Fisheye SIGMA diagonal | SIGMA Fisheye Reserve

• A fisheye in line with the quality standards of the Art range

It is the first diagonal fisheye (covering the entire image) to reach the FMCG market with a brightness of F1.4 for full-frame cameras.

Unlike conventional fisheyes, it is exceptionally sharp across the entire 180-degree viewing angle and offers an ultra-fast aperture of F1.4, making it perfect for a wide range of applications including astrophotography, landscapes, and architecture. The expressive power and characteristic distortion effect of this lens opens up a world of creative possibilities in the field of wide-angle photography.

In terms of optical performance, it offers excellent spot image reproducibility and high resolution by correcting various aberrations, especially sagittal coma flash.

By correcting for sagittal coma flare and other aberrations, this lens can accurately reproduce bright spots of light from corner to corner of the frame even at F1.4, making it ideal for astrophotography.

• Excellent build quality
  To support the relatively heavy optical system and improve the robustness and reliability of the
  equipment, metal parts are used in key parts. TSC polycarbonate (composite
  thermally stable), which has a thermal shrinkage rate equivalent to that of aluminum,
  It is optimally used to reduce the weight of the set. Each control element, such as the
  rings and switches, it is designed to offer a pleasant touch. SIGMA is proud
  the exceptional build quality of its products, which do not compromise durability,
  operability and the feeling of owning a unique piece of equipment.

• Top-notch performance and construction

It features an AFL button that can be configured to access a favorite feature via the camera menu. The opening ring has a locking switch and another that allows you to override the click during turning.

Dust and splash resistant structure and water and grease repellent coating. The front optical element features a coating to prevent the adhesion of water and grease to it.

The AF actuator is a high-thrust HLA linear motor with advanced electronic control that allows the focusing lens to be moved with high speed and precision for comfortable shooting.

To support the relatively heavy optical system and improve the robustness and reliability of the equipment, metal parts are used in key parts. TSC polycarbonate is optimally used to reduce the weight of the assembly. Each control element, such as the rings and switches, is designed to be pleasant to the touch.

• Optimized for astrophotography

It offers several functions designed for astrophotography. This brings the total number of wide-angle prime lenses in the Art range for mirrorless cameras with features optimised for this demanding discipline to take on four metres, along with the SIGMA 14mm F1.4 DG DN | Art, 20mm F1.4 DG DN | Art & 24mm F1.4 DG DN | Art.

The switch to lock the manual focus to the desired position prevents an accidental shift in focus when touching the ring. A very useful feature for long exposure photography with fixed focus.

The design of the barrel is optimized for heater use and prevents this accessory from standing out and causing vignetting in the final image.

The bayonet has a standard gelatin filter holder. In addition, the front cover features a locking mechanism and a double compartment to store and protect up to two of these filters.

It features a detachable tripod mount compatible with Arca-Swiss. In the design of the clamp, it has been taken into account that it does not interfere with the eventual use of a heater, something essential in the practice of astrophotography.

• A new addition to the F1.4 line of optics in the Art range carefully optimised for astrophotography
• ■MFL switch (manual focus lock)
  Switch to lock manual focus to desired position prevents accidental focus change
  when touching the rim. A very useful feature for long exposure photography with fixed focus.
• Optimized for the use of a heater
  The optimized design of the barrel for the use of heaters (necessary to prevent the production of
  condensation inside the optics in natural environments when the temperature drops) prevents
  that this accessory stands out and provokes vignetting in the final image.
• Rear filter holder
  The lens incorporates a standard support for gelatin filters on the bayonet side.
• Special front cover with locking mechanism and filter slots
  The front lid features a locking mechanism and a double compartment to store up to two
  Gelatin filters. Designed specifically for the SIGMA 15mm F1.4 DG DN DIAGONAL FISHEYE | Art,
  This cover protects the filters from accidental scratches and dirt build-up, and is also a
  An unbeatable way to always carry them with you next to your lens.
• Tripod Clamp
  The SIGMA 15mm F1.4 DG DN DIAGONAL FISHEYE | Art incorporates a detachable tripod mount
  compatible with Arca-Swiss. The lens can be placed on a tripod for stability. In the design
  of the clamp has been taken into account that it does not interfere with the possible use of a heater, which is something that
  essential in the practice of astrophotography. The TS-141 tripod stand supplied with this
  The lens is also compatible with the SIGMA 14mm F1.4 DG DN | Art.
  

• . The latest features and excellent quality
  construction
  The SIGMA 15mm F1.4 DG DN DIAGONAL FISHEYE | Art is equipped with several features for
  make it easier to capture, such as an AFL button that can be assigned a function (on supported cameras) and
  a diaphragm ring. It also uses a High-response Linear Actuator (HLA) motor.
  high-response linear) to make AF fast, quiet, and extremely accurate. On the other hand
  It has a sealed structure against dust and splashes (it must not be in contact with
  large amounts of water) providing high robustness with a high level of resistance to agents
  as well as an excellent build quality that allows it to be used with guarantees during the
  long periods in any environment.
  Various functions for shooting
  This lens features an AFL button that can be configured to access a function
  through the camera menu. The opening ring has a locking switch and
  another that allows you to cancel the click during the spin.
• Dust and splash resistant structure and water and water repellent coating
  grease

• Additional Features
  ● Optical construction: 21 elements in 15 groups (4 FLD, 3 SLD, 2 aspherical)
  ● Internal Focus System
  ● Supports high-speed AF
  ● HLA linear motor
  ● Supports optical aberration correction
  * Because this is a fisheye, the distortion is not corrected.
  * Feature available on compatible cameras only. The fixes available depend on the camera model.
  * On cameras where optical aberration correction is controlled with 'ON' or 'OFF' in the camera menu, it is necessary to leave all
  aberration correction functions in 'ON' (AUTO).
  ● Support for DMF, AF + MF
  ● Supports AF assist (E SONY mount only)
  ● Super Multi-Layer Coating
  ● Water and oil coating on the front element
  ● Aperture ring
  ● Button to turn the aperture ring click on or off
  ● Opening ring lock switch
  ● AFL configurable button
  * Compatible cameras only. Available features may vary depending on the camera.
  ● MFL switch
  ● Rear filter holder compatible with GP-21 footbed
  ● Heater holder
  ● Focus Mode Switch
  ● Ability to switch between linear and non-linear focus ring configurations (L-Mount only)
  * Feature available on compatible cameras only.
  ● Dust and splash water resistant structure
  ● Tripod Clamp (TS-141)
  ● Special Front Cover with Locking Mechanism and Gelatin Filter Slots (LC1040-01)
  ● Compatible with the SIGMA USB Dock UD-11 (sold separately and for L-Mount only)
  ● Designed to minimize flare and ghosting effects
  ● Each optical SIGMA is subjected to the brand's MTF measuring system
  ● Rounded 11-blade diaphragm
  ● Durable, high-precision brass bayonet
  ● Mount conversion service available
  ● Craftsmanship 'Made in Aizu, Japan'

Includes:

• Special front cover
• Tripod Clamp
• Protective ring
• Back cover