Because the lens focuses by rotating and moving only the front optical element, it doesn't produce a "classic" triplet image with "soap bubbles" and so on. And some soft focus effect is visible.
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2024-05-25
ISCO Iscovitar 50/2.8: Samples [1] - FF - f/2.8
Photos taken with the Sony a7c (FF, 24MP) and the ISCO Iscovitar 50/2.8 at f/2.8.
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