Helios-44M-4 (58mm f/2) Functionality: Excellent condition: used only a couple of times, carefully stored at home as a collector's item at room temperature and humidity. It is fully functional and functional – the lens is clean inside, focusing and aperture are smooth. Aperture expansion is excellent across all ranges. The lens has been tested. The photos are excellent. I highly recommend it. The Helios-44M-4 58mm f/2 is a Soviet-era manual focus lens with an M42 thread. It boasts good sharpness, can be mounted on modern cameras with adapters, and produces the famous "swirly" bokeh. It differs from earlier versions by its improved coating and a 6-blade aperture. Key Features of the Helios-44M-4: Focal Length: 58 mm (classic portrait lens on full frame, approximately 85-90 mm equivalent on cropped frames). Aperture: f/2.0 - f/16.0. Mount: M42x1 thread. Minimum Focusing Distance (MFD): 0.5 m. Optical Design: 6 elements in 4 groups (based on the Biotar 2/58). Number of Aperture Blades: 6. Filter diameter: 52 mm. Automatic aperture mechanism: Yes. Features and applications: Swirled bokeh: Due to the optical design, the background swirls at wide-open apertures, creating a dramatic effect. Sharpness: Unlike earlier versions (44-2), the M-4 is considered sharper. Use: Excellent for portrait photography on DSLR and mirrorless cameras using adapters (M42-Canon EF/Nikon F/Sony E/Fuji X, etc.) Your package will be securely packaged to protect it from all potential risks during transportation. This item will be shipped from outside the European Union, so your country may or may not charge customs duties according to its customs tariffs. By placing a bid, you confirm that you have no claims in this regard, as I cannot predict which country will purchase the item or what their customs regulations are; it is possible that there will be no customs duties at all. If you would like to combine parcels, this is only possible if you win and purchase both the charity item and the regular item. This way, you save money on shipping and simultaneously help the children and soldiers of Ukraine. Ultimately, I am proud of you and grateful to you for this!!))) If you win the charity item and want to also buy the item to save on shipping, simply write to me immediately so I can delay shipping to save you money.