On its website, the button also boasts the ability to double as one that can be worn on a lapel as a ‘buttonhole badge’.

The soft-release button is out in a choice of three designs: a classic Leica logo (in red or chrome); a ‘limited’ edition to mark 100 years of Leica; or as a simple ‘M’.

It may not be the hottest news of the week, but Friday is traditionally a slow news day in the camera world.

There is no word on a UK price.