Operation Lock. That’s what Panasonic calls it. All modern Panasonic Lumix cameras, as far as I know, offer this quick and convenient method of locking down the controls so you can be sure none of your settings will be upset by itchy fingers or wandering thumbs. Similar features are common in many modern cameras. But Leica has steadfastly refused to add an easily operated operation lock function to prevent the four-way pad or the joystick (where fitted) from moving the focus point around unbidden.

Zoom to 400mm, 560mm ot 800mm with the new Contemporary telephoto from Sigma. It's a compact and well-priced addition to the burgeoning L-Mount Alliance lens collection.

Cars and photography are the perfect complement. Erwin Hartenberg explores the affinity between the car and the camera...

The hype seems never-ending: used Leica M film cameras continue to post new price records on the second-hand market....

During the 2020 lockdown, Roderick Field found solitude, a Patterdale Terrier, a bicycle and a new love for all things Leica

As a break from the trials of lockdown, why not take a tour of Brighton's cosmopolitan seafront together with Leica photographers Kris Pawlowski and John Brockliss