Used: Rolleinar 1 close up set for bay i Rolleiflex TLR's
This is the close up set with two parts and a leather case. The thicker optic goes on the top or viewing lens and the thinner diopter goes on the taking lens. In this set, there is haze or fungus or oil or something in the viewing lens which won't affect images and you might be able to unscrew it and clean it out, but I didn't bother since it won't affect the images and isn't so visible when viewing either. It's more noticeable in person than in the photo unfortunately. Priced as a bargain. The taking optic is great. Comes with the brown leather case not shown.