Enchanting Angenieux! This is the lens that was equipped on the KODAK Retinette 1A Angenieux 50mm F2.8 Type 035/7 (Kodak French Model). It's a lens created with the image of Monet's "Water Lilies," representative of Impressionist paintings by the French painter Monet. The appeal of French lenses is that they are distinct from German and Japanese lenses, with unique, nuanced lenses like Angenieux, Kinoptik, and Elmazy being particularly attractive. The lens is beautiful on its own, as it was removed from a camera that is beautiful both in appearance and optics. It has been disassembled and cleaned optically when removed. The lens has not been modified, so it can be returned to its original body and used for film photography. (The original body is kept.) The Angenieux lens has been adapted to an M39 mount, with an M39-M42 ring and an M42 helicoid mount, and finished for a Nex mount. It has a double helicoid specification, allowing for close-up shots from infinity to 25cm, and 1:1 macro photography. The lens is designed to perform at its best at infinity. Rotating the front element increases aberrations, and the aberrations caused by the movement of the front element, like the Voigtlander Universal Heliar, create a unique depiction. The lens shutter is functional, and the lens is open with the shutter set to B (bulb). As this lens uses a light value system, when changing the aperture, please rotate the barrel while pressing the claw. Although it is an M39 mount lens, it can be directly attached to a Leica, but the flange back is not adjusted, so infinity focus will not be achieved as is. Rather than accurately capturing the scene before your eyes, it depicts the quality and changes of light, and the blurring that is close to the human eye... like the paintings of Monet and Alfred Sisley... Photographs taken with French lenses somehow remind you of them. It feels like there is something in common with the Impressionist paintings that emerged in France in the late 19th century. You can enjoy taking photos with the soft depiction of Angenieux, reminiscent of French films, from landscapes to small figures. I don't think you often see an Angenieux lens with this much clarity. Thank you for your consideration.