Questo 7artisans Photoelectric 25mm f/0.95 is a bright and fast lens that provides a 35mm-equivalent focal length of 37.5mm when used cameras. The speed of the lens is well-suited for working in low-light conditions and provides increased control over depth of field for isolating subject matter and using selective focus techniques. Complementing these features are three ultra-low dispersion elements, which control chromatic aberrations and color fringing in order to produce high clarity and color accuracy. The manual focus design of the lens permits working with subjects as close as 9.8″ away, and this lens sports a 13-blade diaphragm that contributes to a pleasing bokeh quality.