SIGMA’s fastest aperture mirrorless prime.
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£1339Sigma’s first F1.2 lens, the 35mm F1.2 DG DN is the flagship wide-standard zoom for full-frame mirrorless cameras. It combines outstanding image quality, a fast aperture, rapid autofocus and a highly versatile focal length to make it a great choice for a wide range of photography applications, including portraits, landscapes, street, weddings and travel. The extremely wide maximum aperture of F1.2 allows photographers to shoot with a very shallow depth-of-field, which helps create significant subject separation for higher impact results.
The optical design of the lens includes 3 SLD elements and 3 aspherical elements, including a double-sided aspherical element, which ensure very impressive image quality free of unwanted optical aberrations. The lens also has a Super Multi-Layer Coating to reduce ghosting and flare.
Build quality is superb, and on the lens barrel an aperture ring with de-click function allow users to change aperture with the lens rather than the camera if desired.
The exceptional build quality of the 35mm F1.2 DG DN is exactly as you’d expect from an Art-line lens, in the materials used, the overall ergonomics and the quality of craftsmanship.Â
The exterior barrel is made of a polycarbonate called Thermally Stable Composite (TSC). Not only is this very strong and light, but it has a similar thermal expansion rate to aluminium. This ensures that the interior aluminium parts and the exterior TSC parts behave in a uniform way as temperatures change.
The focus ring is rubberised for easier operation, and focusing is internal, meaning the lens never changes length. This makes it ideal for use on a gimbal as the centre of gravity remains fairly constant.
Towards the rear of the barrel is an aperture ring so that aperture can be changed on the lens, and it has an Auto setting should users prefer to change aperture using the camera.
To reduce flare and ghosting in bright sun, and to help protect the front element from damage if dropped, the lens has a robust petal-type lens hood with lock button. A rubberised ring on the hood makes for easier removal and fitting.
The durable brass mount is surrounded by a rubber seal to help keep out dust and moisture.
Precision brass mount with seal
Protects against dust and moisture.
Aperture ring
With a click/de-click switch and a lock switch.
TSC construction
Made from a strong and light polycarbonate that behaves in a similar way to aluminium.
Focus ring
A large, rubberised ring with a smooth action. Focusing is internal.
Petal-type lens hood
Cuts down on flare while limiting vignetting.
Focus Mode switch
For changing between AF and MF.
AFL button
Customisable depending on camera body.
Aperture Click switch
Clicks or de-clicks the aperture ring.
A range of controls on the lens include an AF/MF switch, and a customisable AFL button (depending on camera model).
The lens also has a click/de-click switch so that the aperture ring can be adjusted smoothly rather than in hard stops, which may be useful for film-makers.Â
A powerful stepping motor ensures fast, accurate and quiet AF and excellent AF tracking capability.
The 35mm F1.2 DG DN | Art boasts outstanding optical quality, with excellent detail rendering across the whole frame even wide open at F1.2.
The lens has an advanced optical design made up of 17 elements in 12 groups, including 3 aspherical elements and 3 SLD elements. These precision-crafted elements help to ensure razor-sharp results and eliminate chromatic aberration, flare, distortion and vignetting.
Advanced Super Multi-Layer Coatings reduce flare and ghosting when working in bright direct sunlight, creating high-contrast images with rich colours and strong blacks.
A wide-standard prime is a useful focal length for portraits, whether it be for weddings, street photography, fashion or fine art. For the most flattering perspective on the face, a 35mm is best for full-body portraits, and the F1.2 aperture produces excellent background fall-off even with the subject at some distance away. The bokeh is attractive and smooth so doesn’t distract from the in-focus subject.
With a magnification ratio of 1:5.1, the 35mm F1.2 can focus on objects at just 16.5cm from the end of the lens. This gives the lens good close-up capability, making it ideal for flower and food photography.
SIGMA has two ultra-wide-aperture 35mm mirrorless primes in its range: the 35mm F1.4 DG DN and the 35mm F1.2 DG DN. These are similar in their optical performance, AF speed and external design. The 35mm F1.2 has the faster aperture, although it is 69% heavier than the 35mm F1.4. It also lacks the aperture ring lock switch function.
1,090g
in weight
136.2mm
in length
645g
in weight
109.5mm
in length
All Sigma cameras and lenses are designed, manufactured and assembled at our sole factory at Aizu in Japan. This domestic production model is unusual in today’s industry, with most imaging companies opting to outsource to other countries to reduce costs. But SIGMA believes that keeping virtually all manufacturing, processing and assembly in Aizu is essential for creating innovative, carefully thought-out and impeccably constructed products that meet the high standards demanded by professional photographers and film-makers around the world.
Sigma chose Aizu as its main production base in the early 1970s. Situated at the base of Mount Bandai in the Fukushima Prefecture, about four hours’ drive north of Tokyo, Aizu has an abundance of very clean water from mountain streams, which is essential for grinding and polishing lenses. Sigma’s founder, Michihiro Yamaki, was also drawn to this area for its workforce, who have a reputation for their craftsmanship, work ethic and attention to detail. Mr Yamaki’s son, Kazuto Yamaki, now the owner and CEO of SIGMA Corporation, has the same unwavering commitment to keeping production in Japan.
Today Sigma’s factory is more than 50,000 square feet in size, and packed full of some of the most advanced optical manufacturing technology in existence. So when you buy a Sigma camera or lens you can be sure that virtually every single component part has been manufactured and assembled by SIGMA, in Japan, with the greatest level of care and attention. We hope you enjoy using our products.
If you want to see how a particular SIGMA lens or camera performs, why not test drive it with our SIGMA Select hire service. Available for selected SIGMA lenses, short-term loans are free of charge (including shipping), with a small fee if you want to test it for longer. Refundable deposit required. Subject to availability.
Lens construction
17 elements in 12 groups
Angle of view
63.4°
Number of diaphragm blades
11 (rounded diaphragm)
Minimum Aperture
F16
Minimum focusing distance
30cm
Maximum magnification ratio
1:5.1
Filter thread
82mm
Dimensions (diameter x length)
ø87.8mm × 136.2mm
Weight
1,090g
Corresponding AF mounts
L-Mount | Sony E
L-Mount barcode
00-85126-341695
Sony E barcode
00-85126-341657
Specifications are for L-Mount
A special coating applied to the front element to help repel water and oil.
This suppresses flare and ghosting by minimising reflections within the lens, ensuring punchy, high-contrast results. All lenses in the current Sigma range feature this technology.
Internal focus or an inner focus system means the lens configuration uses movable internal lens elements that adjust focus without changing the length of the lens barrel. This helps keep the centre of gravity of the lens more constant when changing focus.
The lens has an image circle large enough to be used on a full-frame camera. It can also be used on cameras with a smaller ‘crop’ sensor, provided the mount is compatible.
The lens has a filter thread around the front element onto which filters and filter holders can be attached.
The mount is the part of the lens that attaches to the camera body. A coated brass mount is used for strength, and is surrounded by a rubber seal to keep out dust and moisture.
Found on the barrel of some Sigma lenses, the AFL button can be assigned to various functions to widen the range of operations available on the lens (available functions depend on the camera model).
This switch toggles between autofocus and manual focus.
The diaphragm is constructed of 11 rounded blades for a circular aperture opening and round out-of-focus highlights.
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