It seems Panasonic is showing a mock-up of the Leica Vario-Summilux 10-25mm f/1.7 lens at the CP+ show in Yokohama. Richard Butler from DP Review has posted a short story about the Micro Four Thirds lens the company announced in September, with pictures to give us an idea of what it will look like.
The pictures show the lens will have a physical aperture ring like the Leica 42.5mm f/1.2 Nocticron and the Leica DG Summilux 15mm f/1.7 – which is a product is the constant maximum aperture through-out its zoom range. As you might expect from such a wide aperture in a zoom lens, it looks pretty big, standing well above the Leica 8-18mm f/2.8-4 – but to have so many wide focal lengths at that super-fast apertures I think I’d be quite happy with that!
Go visit DP Review to see more pictures.