Sigma to ship ultra-fast 15mm F1.4 “Art” diagonal fisheye lens in March: Digital Photography Review – digitalcameras.ie

SIGMA 15mm F1.4 DG DN DIAGONAL FISHEYE

180° of excessive decision

An revolutionary diagonal fisheye lens

1. Resolving energy that overturns the standard knowledge about fisheye lenses
2. An addition to the Artwork F1.4 lineup, meticulously crafted for astrophotography
3. A wealth of newest features and glorious construct high quality

The world’s first* F1.4 diagonal fisheye interchangeable lens for 35mm full-frame. Unparalleled resolving energy that overturns the standard knowledge about fisheye lenses

In creating a fisheye lens that includes an ultra-wide-angle and highly effective fisheye distortion, SIGMA has achieved a totally new degree of inventive potential, combining the world’s first F1.4 aperture for shopper use with excellent resolving energy throughout the complete picture. By way of optical efficiency, the SIGMA 15mm F1.4 DG DN DIAGONAL FISHEYE | Artwork has achieved glorious level picture reproducibility and excessive decision by correcting numerous aberrations, particularly sagittal coma flare. The lens is able to dealing with astrophotography, which calls for significantly high-quality efficiency, even when wide-open. Not like typical fisheyes, the SIGMA 15mm F1.4 DG DN DIAGONAL FISHEYE | Artwork is exceptionally sharp throughout its complete 180° angle-of-view and affords an ultra-fast F1.4 aperture, making it good for a variety of purposes together with astrophotography, landscapes and structure. The expressive energy of this all-new full-frame mirrorless lens opens a wealth of inventive prospects in wide-angle images.

_{* As an interchangeable lens for full-frame cameras for shopper use. (As of February 2024 by SIGMA）}

[Key features]

Resolving energy that overturns the standard knowledge about fisheye lenses

The most recent optical design completely corrects every sort of aberration. This diagonal fisheye lens has the distinctive expressiveness of a fisheye lens and excessive decision all through the complete picture from a wide-open aperture. The efficiency of the lens is assured by a full inspection with SIGMA’s proprietary MTF measuring system.

Even wide-open, excessive decision and level picture reproducibility throughout the complete picture

The lens consists of 21 parts in 15 teams, together with 4 FLD and three SLD unique low-dispersion glass parts, and a pair of aspherical lens parts. By correcting sagittal coma flare and different aberrations, the lens can exactly reproduce vivid factors of sunshine throughout the entire body even wide-open, making it excellent for astrophotography.

Diagonal fisheye lens with 180° angle of view

The highly effective distortion impact, which is the enchantment of fisheye lenses, permits customers to get pleasure from expressions resembling a novel perspective and emphasis on the topic at a 180° angle of view. As well as, the SIGMA 15mm F1.4 DG DN DIAGONAL FISHEYE | Artwork is designed with the strict efficiency requirements of the Artwork line. Moreover, all lenses are inspected with SIGMA’s proprietary MTF measuring system. The distinctive descriptive energy of this new fisheye lens, which mixes an unimaginable 180° angle-of-view with very excessive decision optics, delivers a degree of inventive potential that exceeds different fisheye lenses.

Designed to attenuate flare and ghosting

To forestall flare and ghosting, which scale back picture high quality, the lens is designed to deal with all situations of incident gentle based mostly on state-of-the-art simulation know-how. Excessive backlight resistance permits clear and sharp photographs underneath any lighting situations.

2. An addition to the Artwork F1.4 lineup, meticulously crafted for astrophotography

The SIGMA 15mm F1.4 DG DN DIAGONAL FISHEYE | Artwork affords plentiful features to assist astrophotography. With the introduction of this lens, SIGMA now has 4 F1.4 wide-angle prime Artwork line lenses with features particularly designed for astrophotography, together with the 14mm, 20mm, and 24mm. By way of each lineup and performance, SIGMA absolutely helps the enjoyment of capturing the celebrities.

MFL (Guide Focus Lock) change

The lens is provided with an MFL change. When the MFL change is about to “LOCK,” the main target ring operation is disabled, making certain that after focus is acquired, it is not going to be modified by unintentional motion of the ring. That is helpful for lengthy exposures and different conditions the place the main target must be mounted whereas taking pictures.

Lens heater retainer

A small step on the entrance of the lens known as a lens heater retainer prevents the lens heater^* from protruding over the entrance factor, eliminating the danger of vignetting.

_{* A belt-shaped warmth strip that’s wrapped across the lens to forestall condensation from forming contained in the lens when the temperature drops.}

Rear filter holder

A typical-equipped rear filter holder on the lens mount permits sheet-type filters for use.

Particular cowl lens cap with a locking mechanism and filter slots

The included cowl lens cap options two slots to securely retailer rear filters, in addition to a locking mechanism. The cap is specifically designed for the SIGMA 15mm F1.4 DG DN DIAGONAL FISHEYE | Artwork, permitting customers to hold sheet-type filters with out the danger of complicated or forgetting them, whereas defending them from scratches and dust.

Tripod Socket

The lens is provided with an Arca-Swiss appropriate, light-weight and durable magnesium alloy tripod socket. The removable leg might be mounted on a tripod for steady situations even throughout lengthy exposures. The form has been intentionally designed to forestall interference when utilizing a lens heater.

_{* The tripod socket TS-141 can also be appropriate with the SIGMA 14mm F1.4 DG DN | Artwork.}

A wealth of newest features and glorious construct high quality

The SIGMA 15mm F1.4 DG DN DIAGONAL FISHEYE | Artwork is provided with numerous features to help taking pictures, together with an AFL button^*1 to which most popular operate might be assigned and an aperture ring, and makes use of a linear motor HLA (Excessive-response Linear Actuator) because the AF actuator to allow quick, quiet, and extremely correct AF taking pictures. The lens can also be outfitted with a mud and splash resistant construction^*2 to make sure a excessive degree of climate resistance and robustness, in addition to glorious construct high quality that enables for lengthy and dependable use in any surroundings.

_{*1 Operate obtainable on supported cameras solely. Accessible features might fluctuate relying on the digicam used.}

_{*2 The construction is designed to be mud and splash resistant, however not waterproof. Watch out to not deliver the lens involved with a considerable amount of water. Water contained in the lens might trigger main harm and even render the lens unrepairable.}

Varied taking pictures help features

The lens is provided with an AFL button which might be assigned to a variety of features by way of the menu on chosen cameras. Along with the aperture ring, the lens is provided with an aperture ring lock change and a click on change to show the clicking on and off.

Mud and splash resistant construction and water and oil repellent coating

Along with a mud and splash resistant construction, the entrance factor of the lens contains a water and oil repellent coating, permitting photographers to shoot with out considerations even in harsh out of doors environments.

Adopts a linear motor HLA

The AF actuator is a linear motor HLA (Excessive-response Linear Actuator). The excessive thrust motor and superior digital management function the main target lens at excessive pace and with excessive precision to supply snug AF taking pictures.

Glorious construct high quality

To assist the heavy optical system and improve robustness and reliability, metallic components are utilized in key components of the lens physique. In the meantime, the light-weight engineering plastic TSC^* can also be utilized in applicable locations to cut back weight. Moreover, every management half, resembling rings and switches, is designed to really feel good. SIGMA is pleased with the distinctive construct high quality of its merchandise, which don’t compromise on sturdiness, operability, and a satisfying sense of possession.

_{* TSC (Thermally Secure Composite) is a sort of polycarbonate with a thermal enlargement price much like that of aluminum. It has a excessive affinity to metallic components which contributes to prime quality product manufacturing.}

[Additional features]

• Lens development: 21 parts in 15 teams (4 FLD, 3 SLD, 2 aspherical parts)
• Internal focus system
• Appropriate with high-speed autofocus
• HLA (Excessive-response Linear Actuator)
• Appropriate with Lens Aberration Correction

^{* On account of being a fisheye lens, distortion is not going to be corrected.}

^{* Operate obtainable on supported cameras solely. Accessible corrections or auto correction performance might fluctuate relying on the digicam mannequin.}

^{* On cameras the place lens aberration correction is managed with ‘ON’ or ‘OFF’ within the digicam menu, please set all aberration correction features to ‘ON'(AUTO).}

• Helps DMF and AF+MF
• Appropriate with AF help (for Sony E-mount solely)
• Tremendous Multi-Layer Coating
• Water and Oil Repellent Coating (entrance factor)
• Aperture ring
• Aperture ring click on change
• Aperture ring lock change
• AFL button

^{* Operate obtainable on supported cameras solely. Accessible features might fluctuate relying on the digicam used.}

• MFL (Guide Focus Lock) change
• Rear filter holder (appropriate with GUIDE PLATE GP-21)
• Lens heater retainer
• Focus Mode change
• Assist for switching between linear focus / non-linear focus ring settings (for L-Mount solely)
  ^{* Operate obtainable on supported cameras solely.}
• Mud and Splash Resistant Construction
• TRIPOD SOCKET TS-141
• Particular COVER LENS CAP LC1040-01 with a locking mechanism and filter slots
• Appropriate with SIGMA USB DOCK UD-11 (offered individually / for L-Mount solely)
• Designed to attenuate flare and ghosting
• Each single lens undergoes SIGMA’s proprietary MTF measuring system
• 11-blade rounded diaphragm
• Excessive-precision, sturdy brass bayonet mount
• Mount Conversion Service obtainable
• “Made in Aizu, Japan” craftsmanship