Collapsible lenses are nothing new: lenses such as the OM System 40-150mm F4 PRO M.Zuiko, Canon RF-S 18-45mm F4.5-6.3 IS STM, as well as several generations of Nikon kit zooms must first be extended from their retracted positions before they can be used. This keeps the lens barrel as short as possible when the lens is not in use.