Japanese photographic website dc.watch.impress.co.jp have images
from their meeting with Panasonic where they got to see the 25mm f/1.4
lens first hand.
The lens consists of ten elements in nine groups with one aspherical
element and one LD element. Closest focusing is 38cm and the smallest
aperture is f/16. The lens takes 62mm filters and weights 525g.
The OIS stabilization system has not been included in this lens.