For aperture Soaps, but when reducing the opening effect quickly disappears. Already at 1/5.6 work is not questioned, and 1/11 everything is fine. A light vignette on the aperture is lost, too, to 1/5.6.
Properties
- фокусное расстояние 55 мм
- максимальная диафрагма 2,8\
- система: Mamiya 645