Lens KMZ Helios-44 Silver 13 blades, 58mm F/2.0, M42 mount for Sony Nex, USSR Lens FULLY SERVICED. Mount: M42. The kit includes an adapter for Sony NEX. Lens Helios-44 13-blades (58 mm f/2 M42). This version with 13 aperture blades provides an exceptionally round aperture shape and smooth, natural bokeh even when stopped down.
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