This is anamorphic attachment for a projector lens made in 1980. Squuezing ratio is 1:2. f/1.8. You can use it as taking attachment as well if you find a way to mount it onto your camera setup. This attachment has a distance scale (from 9m to infinity). It is purposed for 80-140mm lenses.
It is quite big. Weight is 2.7kg. Front barrel diameter is 130mm, rear barrel diameter is 104mm, length is 168mm. Front glass size is 72x95mm, rear glass diameter 76mm.
Not very good condition. Glass has numerous cleaning marks. Few small fungus spots on the front element.
Suitable as experimantal sample, but not as an item for professional use.
Используйте пробелы для отделения меток. Используйте одинарные кавычки (') для фраз.