The Leica DG Summilux 25mm/F1.4 ASPH. (H-X025) lens was created for use with Panasonic’s Lumix G Series of compact system cameras (CSC), including the LUMIX GF3. The Leica DG Summilux 25mm / F1.4 ASPH. lens contains outstanding brightness of F1.4, and despite the high-performance, it also remains incredibly compact and lightweight. The lens’ brightness allows for a beautiful soft focus when shooting both photos and videos – without having to rely on a flash.

The Leica DG Summilux 25mm / F1.4 ASPH. lens has Panasonic’s Nano Surface Coating technology on the surface of the lens.  This helps dramatically minimize reflection at the entire visual light range (380nm-780nm). The technology encompasses an extra-low refractive index coating with nano-sized structure and results in super-clear photos with dramatic reduction of ghost and flare.

The new lens system is made up of nine elements in seven groups using two aspherical lenses and one UHR (Ultra High Refractive) index lens. The newly developed UHR index lens and glass mold aspherical lenses form uniform description from the center to the edges.

The lens’ versatile 25mm focal distance (Equivalent to 50mm on a 35mm camera) works well for a wide variety of occasions, giving users flexibility in composition, perspective and aperture control. The lens is perfect for daily snapshots from scenic sunsets to dimly-lit indoor shots to the deliberately-creative shots using soft focus.

When used with the Panasonic Lumix G Series digital cameras, the Leica DG Summilux 25mm/F1.4 ASPH. lens can take maximum advantage of Contrast AF system, which boasts both high accuracy and high speed for optimal photos. Additionally, seven blades give the aperture a rounded shape creating an attractively smooth effect in out-of-focus areas when shooting at larger aperture settings. The lens also contains a metal mount, making it extremely durable – even when repeatedly changed.

Lens Construction: 9 elements in 7 groups (2 aspherical lenses, 1 UHR(Ultra High Refractive Index)Lens)

Nano Surface Coating: Yes

Mount: Micro Four Thirds mount

Optical Image Stabilizer: No

Focal Length: f=25mm (35mm camera equivalent 50mm)

Aperture Type: 7 diaphragm blades / Circular aperture diaphragm

Aperture: F1.4

Minimum Aperture: F16

Closest Focusing Distance: 0.3m / 0.98ft

Maximum Magnification: Approx. 0.11x / 0.22x (35mm camera equivalent)

Diagonal Angle of View: 47°

Filter Size: 46mm / 1.81in

Max. Diameter: 63mm / 2.48in

Overall Length: Approx. 54.5mm (from the tip of the lens to the base side of the lens mount) / 2.14in

Weight: Approx. 200g / 7.05oz

Standard Accessories: Lens cap, Lens rear cap, Lens storage bag