Panasonic Lumix S511

Andy Westlake takes a first look at Panasonic’s updated full-frame mirrorless model, which finally gains phase detect autofocus

TWO years ago Panasonic launched its first mass-market full-frame mirrorless camera, the Lumix S5. With a 24MP sensor in a compact body and a strong feature set - especially in terms of video - it was a likeable camera that handled well and delivered fine results. But as with all Panasonic models, it was somewhat held back by its use of a proprietary Depth from Defocus (DFD) autofocus system, which couldn't match its competitors for continuous AF or smooth focus transitions during video recording. Now the firm has relented to pressure from users and reviewers alike, with the new Panasonic Lumix S511 finally gaining phase detection AF. It's difficult to overstate how important this is for Panasonic users.

While PDAF is clearly the headline news, the S5ll gains a number of other updates and improvements. Perhaps the most interesting, in technical terms, is the addition of a cooling fan above the sensor, with vents on either side of the viewfinder housing. This allows the camera to support extended video recording times (in principle limited only by card space or battery power), without needing a bulky fan unit on the back like the Lumix S1H and GH6. Slightly disconcertingly, you can see all the way through the camera from one side to the other, but despite this, Panasonic says the body is still dust- and splash-resistant. It’s a touch larger and heavier than the original S5 though, at 134.3x102.3x90.1mm and 740g, so don’t expect the same accessories such as cages to still fit.