Abstract: The disclosed camera objective has a fixed rear lens group preceded by a four-component front group with negatively refracting second and third components which are axially shiftable between positively refracting first and fourth components to establish a minimum overall focal length F.sub.min and a maximum overall focal length F.sub.max with a ratio of about 1:2. The substantially stationary first component consists of a negative front lens (which may be limitedly shiftable for focusing purposes) followed by three positive lenses while the movable second component consists of two negative lenses followed by a positive lens; the movable third component and the fixed fourth component are constituted by a negative and a positive lens, respectively.

Abstract: An objective of a photographic or cinematographic camera has an adjustable four-component front lens group and a fixed rear lens group. Axial displacement of the movable second and third components of the front group establishes a normal varifocal range in which the overall focal length varies between a minimum value f.sub.min and a maximum value f.sub.max having a ratio of 1:6. In the presence of a front attachment with a negatively refracting additional lens member, further shifting of the two movable components establishes an extended wide-angle range with focal lengths smaller than f.sub.min ; similarly, in the presence of a front attachment with a positively refracting additional lens member the two movable components are shiftable to establish an extended telephoto range with focal lengths greater than f.sub.max. Between the normal and wide-angle ranges the third component is also shiftable, without attachment, to focus in a macro range.