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Verdict
Panasonic takes aim squarely at the pocket-friendly 1.0-inch sensor compact camera market with the ZS100 / TZ100, upping the stakes with a 10x optical zoom, something which other manufacturers haven't yet produced.
Although 1.0-inch sensors aren't particularly new or exciting any more, when you couple one with a 10x optical zoom, the resulting camera becomes a much more flexible option which is bound to appeal to travelling photographers looking for something high quality, but convenient.
The ZS100 / TZ100 produces lovely JPEG images, while the raw format images give you good scope to bring out extra detail should you need it. The sensor happily competes with Sony and Canon, who have so far been the big players in the 1.0-inch sensor market. The large sensor facilitates decent low-light shooting, making it a good all-rounder camera.
It's also an enjoyable camera to use, with a good number of buttons and dials, a very responsive touch sensitive screen and an (albeit small) electronic viewfinder. There's also inbuilt Wi-Fi and a range of creative filters. It would perhaps have been nice to see a tilting or articulating screen, but that may have added extra bulk, and certainly extra cost to the camera.
Panasonic claims that it has created a new segment of the market with this camera, and it's hard to disagree with that claim.
Competition
Panasonic Lumix ZS50 / TZ70
If you're not that fussed about a 1.0-inch sensor, then the ZS50 (TZ70 outside the US) might be the camera for you. With a big 30x zoom, auto and manual controls and the ability to shoot raw files – a big bonus for keen photographers who want the best quality from a small camera, there's little to fault for the price. The ZS50 even squeezes in an electronic viewfinder. It's the Swiss Army Knife of travel cameras, combining convenience, quality and control.
Read our in-depth Panasonic Lumix ZS50 / TZ70 review
Panasonic Lumix LX10 / LX15
Panasonic's answer to the RX100 series, the LX10 (known as the LX15 outside the US) is a very capable premium pocket compact camera. There's no EVF like the ZS100 / TZ100, but does benefit from a faster (if shorter) zoom lens and more enthusiast-focused handling, making it a joy to use.
Read our in-depth Panasonic Lumix LX10 / LX15 review
Sony Cyber-shot RX100 III
First things first, it doesn't have such an impressive zoom, but the 24-70mm zoom is fast (f/1.8-2.8) and the viewfinder is that much bigger that the ZS100 / TZ100. While the RX100 V is almost double the price, this represents great value.
Read our in-depth Sony Cyber-shot RX100 III review
Amy has been writing about cameras, photography and associated tech since 2009. Amy was once part of the photography testing team for Future Publishing working across TechRadar, Digital Camera, PhotoPlus, N Photo and Photography Week. For her photography, she has won awards and has been exhibited. She often partakes in unusual projects - including one intense year where she used a different camera every single day. Amy is currently the Features Editor at Amateur Photographer magazine, and in her increasingly little spare time works across a number of high-profile publications including Wired, Stuff, Digital Camera World, Expert Reviews, and just a little off-tangent, PetsRadar.