square-swirly Helios-44 2/58mm M42

square-swirly Helios-44 2/58mm M42 The aperture of this lens changes shape from completely circular when wide open to square at other settings. Restored using modern lubricants. The glass is washed with Zeiss products inside and out. The appearance of this lens may differ from what you see in the photos. The serial number and the manufacturer’s factory logo may also be different. The glass may have minor cleaning marks that do not affect image quality. Please note that making this lens may take a considerable amount of time, so before placing an order, please check whether a similar lens is currently available in stock. If you have any questions, please contact me before placing your order