The discontinued and hard to find Voigtlander Series I 180/4 APO-Lanthar has 9 elements in 7 groups, 9 aperture blades, a smallest aperture of f/22, a close focus distance of 1.2 meters or 1:4, 49mm filter size, diameter of 65.6mm, and weight of 485grams. The 180/4 was introduced in September 2003. The LH-75S bayonet hoods is $69 additional.