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The following is an unedited press release, shown as received from the company represented. We've elected to present selected releases without editorial comment, as a way to provide our readers more information without further overtaxing our limited editorial resources. To avoid any possible confusion or conflict of interest, the Imaging Resource will always clearly distinguish between company-provided press releases and our own editorial views and content.

Panasonic's logo. Click here to visit the Panasonic website! PRESS RELEASE: Sales Under Way of the Second Leica Lens Designed Specifically for the Digital SLR camera.

Panasonic today introduced the second Leica interchangeable lens designed specifically for the digital SLR camera. The LEICA D SUMMILUX 25mm/F1.4 ASPH. complies with the Four Thirds System and will be available by April.

The new LEICA D SUMMILUX 25mm/F1.4 lens (35mm equivalent: 50mm) is a bright, large-diameter F1.4 standard lens. It incorporates an aperture ring and boasts as many as 10 lens elements in 9 groups, including a large-diameter aspherical lens, which assure a superb optical performance and F1.4 brightness, while one super ED (extra-low dispersion) lens and three ED lenses reduce color bleeding to an absolute minimum.


Leica's D SUMMILIX 25mm F1.4 ASPH lens. Courtesy of  Leica, with modifications by Michael R. Tomkins. Click for a bigger picture!

Bright, large-diameter F1.4 25mm fixed focal length lens (35mm equivalent:50mm)
A large total of 10 lens elements in 9 groups, including a large-diameter aspherical lens, give this bright, standard F1.4 lens a superb optical performance. A large-diameter front lens ensures sufficient peripheral light levels, and a large-diameter front aspherical lens reduces light degradation all the way to the lens periphery. The result is high resolution and absolutely minimum lens distortion.

One super ED lens and three ED lenses
Four extra-low dispersion lenses suppress chromatic aberration, thus minimizing color bleeding.

Aperture ring with a familiar, intuitive touch
When the D SUMMILUX lens is used with the LUMIX DMC-L1 digital camera, the user has an aperture ring as well as a focus ring at his or her fingertips. These rings provide the same kind of easy, pleasant, intuitive operation people enjoy with the familiar film camera.

Minimum photographic distance of 38 cm for beautiful macro shooting
Unlike the 50mm lenses used on conventional 35mm film cameras, the D SUMMILUX lens uses a floating focus that reduces minimum photographic distance to just 38 cm. In addition to the lens's high optical performance and low aberration, maximum photographic magnification of 0.17x (35mm equivalent), which combines with the F1.4 brightness allows beautiful macro shooting.

Circular aperture diaphragm
Seven aperture blades create a rounded shape. This combines with the F1.4 brightness to produce a beautiful smoothness in out-of-focus areas at larger aperture.

Multiple lens coatings minimize ghosts and flare
Multi-coated lenses reduce ghosts and flare to an absolute minimum, helping the D SUMMILUX deliver an optical performance that meets Leica's lofty standards.


Lens Construction
10 elements in 9 groups (1 aspherical lens, 1 Super ED lens and 3 ED lenses)
Four Thirds mount
Focal length
f=25mm (35mm film camera equiv. 50mm)
MEGA O.I.S. (Optical Image Stabilizer)
Aperture type
7 diaphragm blades / Iris diaphragm
Minimum aperture
Closest focusing distance
Maximum magnification
Approx. 0.17x (35mm film camera equivalent)
Diagonal angle of view
47 degrees
Filter size
Dimensions (Diameter x Length)
Approx. 510g

# # #

(Editor's note: This lens was first announced back on September 26, 2006 at Photokina. Here's a link to the original press release, for your convenience.)

(First posted on Sunday, March 11, 2007 at 00:31 EST)

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