The Leica Hektor 73mm/1.9 was produced from 1931 to 1942. It is a “portrait” lens that produces pictures in a pleasant sort of 1930s softness and shallow DOF. Color saturation is also much lower than on modern lenses; flare is high if not controlled. It is a challenging lens to use, especially wide open. Except for formal portraits, it is not very useful as a short telephoto. 70 years after it was made, it is still interesting.
At 6.3 or higher, it becomes sharper. See my pictures with the M8 at http://www.leicaphoto.net/discus/mes...tml?1175995908
Here a typical portrait: soft, low contrast, low color saturation.
G1 - Leitz Hektor 73mm @ f/1.9 - RAW Therapee, no modifications during postprocessing except cropping and resizing for the web