Derivative significance of steel gun

Nikon big steel cannon: photographers call the Nikon AF-S 80-200/ED F/2.8D model with powerful telephoto zoom function and dark and thick appearance "big steel cannon";

Nikon small steel cannon: Nikon AF-S 80 (70)-200/2.8ED is also black and thick, but the lens with shorter lens length is called "small steel cannon".

Steel cannon car: Car fans usually refer to compact (usually hatchback), sporty and powerful cars as "steel cannon cars". This kind of car has the characteristics of short body, handsome appearance, agile control, surging power, lightweight body, solid frame and excellent safety. Not as overbearing as a sports car, nor as diligent and moderate as an RV. Such as Renault Clio RS, Volkswagen Golf GTI, Alfa Romeo Mito GTA.