The LEICA DG SUMMILUX 15mm / F1.7 ASPH. allows you to capture
supreme snapshots with beautiful defocus features produced by F1.7 high
speed. Certified with the name of world-renowned LEICA, the exceptional
high image quality is guaranteed. The new lens system comprising of 9
elements in 7 groups uses 3 aspherical lenses. The aspherical lenses
suppress spherical aberration and distortion effectively while realizing
downsizing of the lens unit.
High-Precision, High-Speed AF
The inclusion of newly developed stepping motor makes the focusing
action smooth and silent for use in both photo and video recording.
Notably the performance of AF is by far superior to the phase-difference
AF when fast lens with smaller F value is used. When mounted on the
cameras of LUMIX G, you can take advantage of the high-speed,
high-precision Contrast AF system.
Aperture Ring Control /
Metal Finish Design
The LEICA DG SUMMILUX 15mm / F1.7 ASPH. comes
equipped with aperture ring and AF/MF switch for direct,
The sophisticated metal design of LEICA DG SUMMILUX
15mm / F1.7 ASPH., including the hood, deserves to bear
the prestigious LEICA name. Highly reliable metal mount is
durable enough for repeated exchange of lens.
Nano Surface Coating
With Panasonic's Nano Surface technology the reflection
is dramatically minimized at entire visual light range
(380nm-780nm) by applying the extra-low refractive index
coating with nano-sized structure on the surface of the
lens. It results in the super clear picture with dramatic
reduction of ghost and flare.
I've said it before and I'll say it again: Micro Four Thirds is the mirrorless system to go for if you love your lens choices - and the Summilux 15mm f1.7 is a valuable and welcome addition to the catalogue.
H-X015E, CameraLabs, Highly Recommended 30 July 2014
The Panasonic Leica DG Summilux 15mm f/1.7 ASPH is an excellent moderate wide-angle prime lens that is small and light enough to be carried in a coat pocket if required
H-X015E, Photography Blog, Highly Recommended 30 June 2014