Helios-77M-4 50mm f/1.8

Helios-77M-4 50mm f/1.8 is a manual focus prime lens for full frame cameras.

Optical design

Wide open, subjects located outside the depth of field are shown very blurred. Has 6 aperture blades, this number of blades are commonly used. Having rounded blades provides out of focus circle shape closer to a circle.

Physical characteristics

41 mm long, this small lens should be always in the camera bag. With a lens filter diameter of 52 mm commonly filter size, gives you a variety of filter options. Weights 250 grams so consider putting to your camera bag.