Objektiv veränderlicher Brennweite(the separation changes between the lens components yield a focal plane which is stationary or does not move outside the limits of depth of focus)
Objektiv mit veränderlicher Brennweite(the separation changes between the lens components yield a focal plane which is stationary or does not move outside the limits of depth of focus)
Zoom-Objektiv(the separation changes between the lens components yield a focal plane which is stationary or does not move outside the limits of depth of focus)
Gummilinse(the separation changes between the lens components yield a focal plane which is stationary or does not move outside the limits of depth of focus)
Zoom-Objektiv(the separation changes between the lens components yield a focal plane which is stationary or does not move outside the limits of depth of focus)