Although it's a cinema lens, I used it as a regular lens for less than a month, and after that, I stored it carefully in a dehumidified storage. It shows little signs of use and is in generally good condition. There is no mold, and there is only a very small amount of dust, which does not affect the photos. Both the focus ring and the aperture ring function well. 【High-Performance Lens】 The 7artisans 50mm F2.0 lens offers excellent optical performance, producing sharp and clear images. 【Durable Design】 It uses a metal mount, which is highly durable and suitable for long-term use. 【Versatile】 It's a focal length that can be used for various shooting styles, such as landscapes, portraits, and street photography. - Brand: 7artisans - Model: 50mm F2.0 spectrum - Focal Length: 50mm - Maximum Aperture: F2.0 - Mount Type: Mirrorless - Lens Construction: Multiple lens elements - Rear Structure: Metal mount Thank you for viewing. Focal Length: 19-70mm Maximum Aperture: 1.5-2