The T1.4 aperture and 18-blade iris produce an ultra-shallow depth of field with expressive, painterly bokeh and controlled flares. Its 270° focus rotation with 0.8 MOD gears and a soft, low-profile focus mark light provide precise, repeatable manual pulls for video work. This lens is best for cinematographers and professional video shooters on Canon RF mount who prioritize organic, vintage-inspired rendering over lightweight travel optics.