The soft focus effect is greatly reduced. The lens is more like a triplet.
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2023-12-05
Riconar/Rikenon 55/2.2: Samples [1] - FF + close focus (helicoid) adapter
The Riconar 55/2.2 lens produces a different image when focused by the close focus (helicoid) adapter (instead of the lens mechanism). More samples at f/2.2 with the Sony a7c (FF, 24MP):
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