The LEICA DG SUMMILUX 25mm / F1,4 ASPH is actually an old friend. Since 25mm is the standard focal length for Micro Four Thirds sensors, the demand for this classic is probably still there. However, other manufacturers now also have very interesting offers in this focal length class to offer, which is why Panasonic now raises this lens to the state of the art of lens technology.
The optical design has obviously not changed, so no new optical combinations have been calculated, but the proven Leica design of the first generation has been adopted. So smallest aperture 1.4, 7 blades, minimum focus distance 0.3m, filter diameter 46mm and weight 205g.
The lens also has an internal focus drive and a stepper motor, which should ensure relatively quiet operation even when filming. It also has splash water and dust protection. At first glance, only the electronics seem to be really new, which now enables data exchange at 240 frames/second. Among other things, this is a prerequisite for being able to use the new high-speed DFD autofocus of the current LUMIX G camera models.
The new version of the LEICA SUMMILUX 25mm/ 1.4 II ASPH is expected to be available from October 2019 for 649,- Euro.