I was looking for a fixed lens with a good opening to get back the feeling of a 50mm on a 24 X 36 silver! The result is achieved: good-quality images, pictures without flash indoors with a good opening to the sound of the diaphragm blades in triggering that recall the old goals !! The focal length is quite versatile: I use to near and also for landscapes and monuments.
The objective is plastic and what surprises is the lightness, but the construction seems well made and robust .. to do with the time what happens! The goal is not macro but still allows for sharp images up to about 50 cm.
Very satisfied pictures and "sensations" produced !!