LEICA THE APO-ELMAR-S 1:5.6/120 MM ASPH. TS Tilt and shift LEICA TS-APO-ELMAR-S 1:5,6/120 MM ASPH. TS-Apo-Elmar-S-120er Perspective control The Leica TS-APO-Elmar-S 120 mm f/5.6 ASPH. allows control of perspectives and the location of the plane of focus. Perspectives remain unchanged when altering the viewing angle. This allows the correction of converging verticals in architectural photos, for example. Tilting the lens permits precise placement of the plane of focus so that a flat object viewed from the side is completely sharp at maximum aperture. Conversely, tilting the plane of focus in the opposite direction to the elongation of the subject may be used to significantly reduce depth of focus. TS-Apo-Elmar-S-120er Linsenschnitt Constructional details Due to its special construction as a tilt/shift lens and its external form, the Leica TS-APO-Elmar-S 120 mm f/5.6 ASPH. differs slightly from the other lenses of the S-System. The lens has four rings for controlling tilt and shift. One turn/push ring each for setting the tilt and shift direction and one each for setting the degree of tilt or shift. A tripod plate fixes the selected settings.