| opt. |
Gummilinse f (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); 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); Varioobjektiv n (whose power changes smoothly and without interruption); Zoom-Objektiv n (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) |
