Obiettivo sovietico KMZ Helios 44 2/58 M39, M42, argento bokeh ritratto

In the center of the lens are quite sharp images even at f/2.0. On diaphragms covered with edges and corners images bounce back. Like other lenses HELIOS-44 family, version 44 tightens up the background - the legendary 'Twisted bokeh'.

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