Distinguished by its remarkably circular bokeh, the 100mm f/2.8 Lens from TTArtisan is a full-frame telephoto lens that naturally creates images that stand out. 13 aperture blades contribute to produc espandi...ing the smooth "soap bubble bokeh" that this lens is known for. The combination of a 100mm focal length and a distinctive bokeh effect makes this a strong choice for capturing nature as well as portraits.