Here are some new prorotype pictures of the upcoming Panasonic Leica DG Vario-Summilux 10-25 mm f/1.7 MFT lens taken at the Photography Show 2019 in Birmingham (the lens was announed in September last year):
Pictures of the lens attached to a camera:
"Still in prototype format, the latest iteration of this mirrorless camera lens is now almost fully working. The zoom mechanism works so that you can see how far the lens extends at 10mm, 14mm (the shortest length) and 25mm, the aperture ring rotates, and the manual focus collar pulls back to reveal focus distance markings."
"The lens extends slightly when you zoom to 25mm, and the closest focusing distance is 28cm. The lens on display is a working pre-production sample, so we were unable to take sample photo using the lens, however we can tell you that the lens works very well on a Panasonic Lumix G9, and focus was rapid. The aperture ring on the lens we used is clickless, which means it's silent and can be smoothly adjusted, perhaps indicating that the lens is specifically suited (or rather designed) with video work in mind. The lens zooms smoothly through the zoom range, and has a 77mm filter thread."
More pictures of the lens can be found here.