Sigma AF 24mm f1.4 DG DN Art lens for Lumix L-mount 

This full-frame, wide-angle prime lens is ideal for a wide range of photo and video applications, including night sky photography, landscapes, interiors, weddings and architecture.

Its ultra-wide aperture of F1.4 ensures very fast shutter speeds in lower-light conditions, as well as a very shallow depth-of-field for pronounced subject separation.

• Full-Frame Format
• Aperture Range: f/1.4 to f/16
• Two FLD Elements and One SLD Elements
• Four Aspherical Elements
• Super Multilayer Coating
• STM Autofocus Motor
• Rounded 11-Blade Diaphragm
• Brass Bayonet Mount
• 72mm Front Filter Thread
• Rear Filter Holder

The lens comes with a raft of pro-level features that includes an aperture ring with de-click and lock switches, an AFL button, a lockable lens hood, a rear filter holder and a manual focus lock feature. The optical design includes two FLD, one SLD and four aspherical elements that ensure very minimal chromatic aberration, sagittal coma flare and image distortion. The resulting images are highly-detailed with exceptional sharpness and accuracy from the centre to the periphery of the frame.

Designed from the ground up for mirrorless cameras, the 24mm F1.4 DG DN is remarkably compact for an ultra-fast aperture lens with a such a large feature-set.

Professional feature-set

A range of controls on the lens include an AF/MF switch, a customisable AFL button and switches to de-click and lock the aperture ring.

The lens also has a Manual Focus Lock switch that allows users to completely deactivate the focus ring once focus has been acquired, ensuring that focus won’t change should the ring be accidentally knocked.

The lens’ powerful stepping motor ensures fast, accurate and quiet AF and excellent AF tracking capability.

Rear filter holder

The 24mm F1.4 has an 72mm filter thread at the front of the lens, as well as a filter holder at the rear. The rear filters (not included) are about the size of an SD card, so very small and light, and as they’re positioned between the camera and lens, don’t tend to get damaged or dirty. It’s easy to cut filters by hand from gel sheets as a special template is included with the lens.

High-performance optics

The 24mm F1.4 DG DN | Art boasts outstanding optical quality, with excellent rendering of detail right into the corners even wide open at F1.4.

The lens has an advanced optical design made up of 17 elements in 14 groups, including 4 aspherical elements, 1 SLD element and 2 FLD elements. This ensures razor-sharp results and helps to eliminate chromatic aberration, flare, distortion and vignetting.

Advanced Super Multi-Layer optical coatings reduce flare and ghosting when working in bright direct sunlight, creating high-contrast images with rich colours and strong blacks.

Low-light capability

At F1.4, the lens is able to collect four times more light than an F2.8 optic, making it perfect for low-light photography such as astro and other nightscapes.

The lens can render an exceptional amount of star detail within a relatively short exposure time, and saggital coma flare is very minimal meaning that stars remain as very sharp, bright points of light even in the corners of the frame. The front and rear filter options make it easy to attach soft filters and light pollution filters.

Outstanding build quality

The exceptional build quality of the 24mm F1.4 DG DN is exactly as you’d expect from an Art-line lens, including in the materials used, the overall ergonomics and the quality of craftsmanship.

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, which can be de-clicked for stepless aperture changes. When put into Auto, aperture is controlled by the camera. A lock switch allows users to lock the ring in Auto or Manual so it’s not accidentally knocked into a different setting.

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.

Made in Japan

All Sigma cameras and lenses are designed, manufactured and assembled at their 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.