Set at f/2, the Helios 44-2 creates beautiful, dreamy bokeh, perfect for portraits, and the motor in our Pronto Autofocus Adapter moves the lens back and forth to nail focus every time! - - #prontoadapter #helios44 #helios44_2 #fotodiox #fotodioxpro #fotodioxadapter #m42 #m42lens #portrait #portraitlens #portraitphotography #vintagelens #russianlens #nikonz #nikonz9