abstract:The Belgian Fabrique Nationale d’Armes de Guerre (National Manufacturer of War Weapons) company, also sometimes known as Fabrique Nationale de Herstal (National Manufacturer at Herstal), but better known simply as "FN" or "Fabrique Nationale" was founded at Herstal on the edge of Liege in 1889. As well as weapons, it was for many years a manufacturer of motorbikes and of automobiles.
The L-Fn (Lens Function) button suspends the autofocusing operation temporarily to avoid unintended focusing on obstacles that appear suddenly between the camera and the subject.