Members Martin Vronsky Posted June 8, 2023 Members Share Posted June 8, 2023 Press release: SIGMA Announces 14mm F1.4 DG DN | Art – the World’s First 14mm F1.4 Lens – Designed Especially for Astrophotography Ronkonkoma, NY – June 8, 2023 – SIGMA Corporation of America, the US subsidiary of SIGMA Corporation (CEO: Kazuto Yamaki. Headquarters: Asao-ku, Kawasaki-shi, Kanagawa, Japan) is pleased to announce the SIGMA 14mm F1.4 DG DN | Art lens. This is the world's widest F1.4 single focal length lens*, born from our engineers' passion for capturing the widest, brightest, highest- resolution, and most captivating starry sky images possible. Designed specifically for astrophotography, the 14mm F1.4 DG DN | Art lens is a full-frame, ultra wide-angle prime designed exclusively for mirrorless camera systems, and is available in Sony E- mount and Leica L-Mount. This lens offers a full set of features designed for astrophotography including a removable tripod socket, MFL switch (Manual Focus Lock function), lens heater retainer, rear filter holder, and a specially-designed front cap including a NEW locking mechanism and NEW filter storage slots. All this, plus thorough aberration correction, make this possibly the best lens ever made for astrophotography. Its ultra-wide 14mm angle of view that captures wide starry skies and bright F1.4 aperture that minimizes exposure time are ideal specifications for astrophotography. Incredibly sharp from corner to corner with splash and dust-resistant construction, this lens retains the same high performance and quality standards found within the SIGMA F1.4 Art lens lineup. The astrophotography-focused feature set and total optical performance make this an excellent lens for high-end architecture, real estate, and landscape photography as well. The lens will retail for $1599 through authorized US retailers and will be available in late June 2023. Learn more about the SIGMA 14mm F1.4 DG DN | Art lens: https://www.sigmaphoto.com/14mm-f1-4-dg-dn-a * Excluding fisheye lenses, as interchangeable lenses for mirrorless cameras and SLR cameras (as of June, 2023 by SIGMA) New vision. Expanding possibilities. Ultra wide-angle 14mm with a maximum aperture of F1.4 and outstanding optical performance Abundant functions and accessories to support starscape photography Signature Art line features and high build quality Supplied accessories: Case, COVER LENS CAP LC1014-01, REAR CAP LCR II, TRIPOD SOCKET TS-141, PROTECTIVE COVER PT-41, GUIDE PLATE GP-11 Available mounts: L-Mount, Sony E-mount * 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. The world's first and only* lens that combines an ultra-wide angle of 14mm with a maximum aperture of F1.4. All for the best starscape photography. The stars in the sky are a source of inspiration for viewers. On the other hand, the starry sky is a very demanding subject for a wide-angle lens, with its numerous tiny point light sources spread over the entire image. The 14mm F1.4 DG DN | Art is the world's widest F1.4 single focal length lens*, born from our engineers' passion for capturing the widest, brightest, highest-resolution, and most captivating starry sky possible. Thanks to SIGMA's latest technology, the lens combines an ultra-wide angle of 14mm with a maximum aperture of F1.4. In addition, SIGMA's lens technology has achieved high optical performance with thorough correction of sagittal coma flare, specialized functions to support starry landscape photography, and high-speed AF with the HLA (High-response Linear Actuator) linear motor. The Milky Way stretching across the night sky, twinkling stars emerging over ridgelines –the 14mm F1.4 DG DN | Art can make this a reality as an image that surpasses the actual photographic experience. Its proven ability in shooting starscapes will provide new possibilities for visual expression and enjoyment in all scenes, including daytime landscapes, architecture, and indoor photography in dark and confined spaces. * Excluding fisheye lenses, as interchangeable lenses for mirrorless cameras and SLR cameras (as of June, 2023 by SIGMA). [ Key Features ] 1. 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. 2. 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 mount compatible with Arca-Swiss type. The 14mm F1.4 DG DN | Art can be mounted on a tripod in a more stable condition, as it is heavier on the front side. The shape is designed to prevent interference even when using the lens heater. • MFL (Manual Focus Lock) Switch A switch to lock the manual focus at a desired position. Prevents focus shift caused by unintentional operation of the focus ring. This is useful for long time exposure photography, etc., where the focus is fixed. • Lens Heater Retainer Steps around the front and lens heater retainers prevent 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. • 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 a newly developed filter slot 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. 3. 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 stain-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. [ Additional Features ] Lens construction: 19 elements in 15 groups (3 FLD,1 SLD, and 4 aspherical elements) Inner focus system Compatible with high-speed autofocus HLA (High-response Linear Actuator) Compatible with Lens Aberration Correction Function available on supported cameras only. Available corrections and auto correction functionality may vary depending on the camera model. On cameras where lens aberration correction is controlled with 'ON' or 'OFF' in the camera menu, please set all aberration correction functions to 'ON' (AUTO). Supports DMF and AF+MF Compatible with AF assist (Sony E-mount only) Super Multi-Layer Coating Water and Oil Repellent Coating (front element) Aperture ring Aperture ring click switch Aperture ring lock switch AFL button MFL switch Rear Filter Holder (compatible with GUIDE PLATE GP-11) Lens Heater Retainer Focus Mode Switch Support for switching between linear and non-linear focus ring settings (for L-Mount only) Dust and Splash Resistant Structure 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 "Made in Japan" craftsmanship Learn more about SIGMA's craftsmanship here: https://www.sigma-global.com/en/about/craftsmanship/ Link to comment Share on other sites More sharing options...
Members Martin Vronsky Posted June 8, 2023 Author Members Share Posted June 8, 2023 Specs: Lens type - Prime lens Max Format size - 35mm FF Focal length - 14 mm Image stabilization - No Lens mount - L-Mount, Sony E, Sony FE Aperture Maximum aperture - F1.4 Minimum aperture - F16 Aperture ring - Yes Number of diaphragm blades - 11 Aperture notes - Rounded diaphragm Optics Elements - 19 Groups - 15 Special elements / coatings - 3 FLD, 1 SLD, 4 aspherical Focus Minimum focus - 0.30 m (11.81″) Maximum magnification - 0.08× Autofocus - Yes Motor type - Linear Motor Full time manual - No Focus method - Internal Distance scale - No DoF scale - No Physical Weight - 1170 g (2.58 lb) Diameter - 101 mm (3.98″) Length - 150 mm (5.91″) Filter notes - Rear filters only (GP-11) Hood supplied - No Tripod collar - Yes Link to comment Share on other sites More sharing options...
Members Martin Vronsky Posted June 8, 2023 Author Members Share Posted June 8, 2023 Quote We've seen some bright 14mm lenses before, but nothing like the new Sigma 14mm f/1.4 DG DN Art! Along with the incredibly fast aperture, this lens has a number of features to make your astrophotography experience even better. Chris and Jordan took one out for a night of reviewing and night photography, and they have opinions. 0:00 - Intro 1:21 - Design and handling 2:53 - Close up performance 3:20 - Flare and sunstars 4:10 - Autofocus 4:38 - Filters 5:09 - Sharpness 5:53 - Bokeh 6:37 - Night photography 8:11 - Who is it for? Link to comment Share on other sites More sharing options...
Members Martin Vronsky Posted June 8, 2023 Author Members Share Posted June 8, 2023 Quote My Sigma 14mm f1.4 DG DN Art review - a superb lens for astro, landscape and urban 00:00 - Introduction and pricing 00:58 - Sigma 14mm f1.4 rivals 01:46 - Sigma 14mm f1.4 design, controls, tripod collar 05:15 - Sigma 14mm f1.4 focusing 05:48 - Sigma 14mm f1.4 focus breathing 06:27 - Sigma 14mm f1.4 optical correction lens profile 07:14 - Sigma 14mm f1.4 landscape quality 08:24 - Sigma 14mm f1.4 astro photography quality 09:01 - Sigma 14mm f1.4 vs Sony 14mm 1.8 for astro 09:41 - Sigma 14mm f1.4 portrait quality 10:00 - Sigma 14mm f1.4 vlogging 10:56 - Sigma 14mm f1.4 macro quality 11:14 - Sigma 14mm f1.4 bokeh blobs 11:45 - Sigma 14mm f1.4 vs Sony 14mm f1.8 bokeh quality 12:07 - Sigma 14mm f1.4 vs Sony 14mm f1.8 diffraction spikes sunstars 12:26 - Sigma 14mm f1.4 for video 13:19 - Sigma 14mm f1.4 sample images and verdict Link to comment Share on other sites More sharing options...
Members Martin Vronsky Posted June 8, 2023 Author Members Share Posted June 8, 2023 Quote Sigma’s new 14mm f/1.4 Art Lens is a bright, ultra-wide prime engineered for capturing the night sky. Compatible with L and Sony E-mount mirrorless cameras, this ultra-wide, astro-centric lens is equally capable of rendering landscapes and architecture with the exacting clarity that has become synonymous with Sigma’s Art line. 0:00 Intro 0:20 Specs 0:44 Performance 1:17 Physicality 2:00 Final Thoughts Link to comment Share on other sites More sharing options...
Members Martin Vronsky Posted June 8, 2023 Author Members Share Posted June 8, 2023 Quote At night time, in bed, when they SHOULD be out shooting, this is what astrophotographers dream about. All pictures taken by me on a Sony a7R III camera. Link to comment Share on other sites More sharing options...
Members Martin Vronsky Posted June 13, 2023 Author Members Share Posted June 13, 2023 Quote 0:00 - Intro and Concept 2:17 - Fantom Wallets 02:55 - Build and Features 08:40 - Autofocus 10:45 - Image Quality 23:00 - Conclusion and Pricing Link to comment Share on other sites More sharing options...
Members Martin Vronsky Posted August 28, 2023 Author Members Share Posted August 28, 2023 Link to comment Share on other sites More sharing options...
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