The benefits of a 1.4 max aperture.
The fast F1.4 max aperture provides extraordinary brightness and depth of field that allow you to capture gorgeous, natural bokeh. The 11-blade circular aperture allows you to capture impressive images in which the subject stands out against a smoothly defocused foreground and background, as well as perfectly round points of defocused light.
In addition to lovely bokeh, one of the benefits of a lens with a wide aperture is that it can collect a ton of light. This makes it ideal for situations that require more advanced light gathering capabilities like indoor, night and astral photography, making this lens perfect for any occasion.