Sigma 20mm F1.4 DG DN Art Lens (Leica L Mount)

Sigma 20mm F1.4 DG DN Art Lens: Ultra-Wide Excellence for Leica L-Mount Cameras

Overview:

The Sigma 20mm F1.4 DG DN Art Lens (Leica L Mount) stands out as a cutting-edge ultra-wide-angle prime lens, tailored for full-frame Leica L-mount mirrorless cameras within Sigma's prestigious Art series, which is celebrated for its superior optical excellence and vast creative possibilities. This lens combines an expansive field of view with a large f/1.4 aperture, enabling photographers to capture extensive landscapes and work in low-light conditions while achieving a shallow depth of field for artistic focus effects. It boasts a state-of-the-art optical design that significantly reduces aberrations, ensuring crisp, clear images across the entire frame. Despite its comprehensive coverage and wide aperture, the lens maintains a compact, lightweight profile, making it an ideal companion for photographers on the move. It is also specially optimized for astrophotography, featuring minimized coma and enhanced correction for sagittal coma flare, thus catering to night sky enthusiasts. Additionally, the lens includes a host of advanced features such as aspherical and FLD/SLD elements, a water and oil-repellent coating, a dust and splash-proof construction, and a Hyper Sonic Motor for swift, silent autofocus, all designed to meet the rigorous demands of professional and hobbyist photographers alike.

More Details:

• Ultra-wide Angle with Fast Aperture: Enjoy the vast landscapes and superior low-light photography with the lens's f/1.4 aperture, blending a broad view with the ability to create images with a shallow depth of field.

• Exceptional Optical Quality: With Sigma's advanced optical design, users benefit from minimized aberrations and crystal-clear sharpness across the entire frame, enhancing the overall image quality.

• Compact and Lightweight Design: Designed for photographers on the move, this lens offers the perfect balance between a wide aperture and a manageable size, ensuring ease of use in various shooting conditions.

• Astrophotography-Optimized: Features like minimized coma and improved sagittal coma flare correction make this lens a standout option for capturing the beauty of the night sky.

• Advanced Lens Elements and Coatings: Incorporates aspherical and FLD/SLD elements to combat aberrations, along with a water and oil-repellent coating for the front element to keep shots clear under any conditions.

• Durable and User-Friendly Features: Dust and splash-proof construction, a Hyper Sonic Motor for quiet and fast autofocus, and customizable controls ensure the lens is ready for any challenge.

• Versatile and Creative Control: The 11-blade rounded diaphragm creates beautifully smooth bokeh, complementing the manual aperture ring for precise control over exposure and depth of field effects.

FEATURES:

Photo: Sigma Global, all rights reserved. 

• Support front and rear filters - The lens also comes with a rear filter holder, allowing photographers the freedom to combine multiple filters to suit a huge variety of shooting situations for near-unlimited creative potential at an ultra-wide viewing angle.
• Designed for perfect results even in the most demanding conditions - When the MFL switch is set to “LOCK”, the focus ring operation will be disabled.
  This is to prevent the focus ring from accidentally being moved, which would cause out-of-focus images.
• Highest optical performance on a new level - With 17 glass elements arranged in 15 groups, including two SLD, three aspherical glass elements, and the largest class double-sided aspherical glass element in SIGMA’s history, the lens is rigorously suppressed various optical aberrations such as sagittal coma flare or image distortion to produce highly-detailed images with exceptional sharpness and accuracy from the center to the furthest corners, allowing photographers to make use of the entire field of view afforded by its ultra-wide viewing angle.
• Aperture ring - It is designed to help users work intuitively.
• Aperture ring click switch - Mounted with a de-click function for removing clicks by the aperture ring click switch, enabling seamless operations that are especially useful such as during video shooting.
• Aperture ring lock switch - It is used to prevent from unintended movement of the aperture ring during shooting.
• Lens heater retainer - The lens heater is used to prevent internal condensation as the temperature drops on longer night shoots and will stay securely attached to the barrel without protruding into the image and causing unsightly vignetting.
• Superb build quality and usability with uncompromising attention to detail - Its dust- and splash-resistant structure and the water- and oil-repellent coating on the front glass element makes the lens safe to use during longer outdoor shoots, especially during the night.
• Dust and Splash Resistant Structure - This lens features a highly effective dust and splash-resistant structure with special sealing at the mount connection, manual focus ring, zoom ring, and cover connection.
• Super Multi-Layer Coating - In digital cameras, flare and ghosting may also be caused by reflections between the image sensor and lens surfaces. Here too, SIGMA’s Super Multi-Layer Coating is highly effective, assuring images of outstanding contrast
• Inner focus system - To increase stability, this lens configuration uses movable internal lens elements that adjust focus without changing the length of the lens barrel.
• Designed to minimize flare and ghosting
• Every single lens is evaluated with SIGMA’s proprietary MTF measuring system
• 11-blade rounded diaphragm
• High-precision, durable brass bayonet mount

SPECIFICATIONS:

WHAT'S INSIDE:

• Sigma 20mm F1.4 DG DN Art Lens (Leica L Mount)
• Sigma LH878-04 Lens Hood
• Sigma LCF-82 III 82mm Lens Cap
• Sigma LCR II Rear Lens Cap for Leica L
• GP-21 Guide Plate
• Limited Warranty

What cameras is the Sigma 20mm F1.4 DG DN Art Lens compatible with?

This lens is designed for full-frame Leica L-mount mirrorless cameras, but it can also be used with APS-C models, providing a 30mm equivalent focal length.

Can this lens be used for astrophotography?

Yes, the Sigma 20mm F1.4 DG DN Art Lens is optimized for astrophotography, featuring minimized coma and improved sagittal coma flare correction.

Is the Sigma 20mm F1.4 DG DN Art Lens weather-sealed?

Yes, it has a dust and splash-proof construction along with a water and oil-repellent coating on the front element, making it suitable for use in challenging weather conditions.

What kind of autofocus motor does the lens use?

The lens employs a Hyper Sonic Motor (HSM) for fast, precise, and quiet autofocus performance, making it ideal for both photography and videography.

Can I control the aperture manually on this lens?

Yes, the Sigma 20mm F1.4 DG DN Art Lens comes with a manual aperture ring, allowing for direct mechanical control over the aperture setting.