The Panasonic Lumix S 70-200mm L-mount lens could have a constant f/2.8 aperture
Digitalcameraworld reports that the upcoming Panasonic Lumix S 70-200mm L-mount lens could be with a constant f/2.8 aperture and not f/4 as initially thought:
"However from its size and 77mm front filter thread, it look almost certainly to be a 70-200mm f/2.8. You can also clearly see that the closest focusing distance of the lens is 0.92m (3.02 ft)."
More pictures of the Panasonic Lumix S 70-200mm L-mount lens - you can see that the lens is pretty big to be an f/4:
