Minolta 28mm f2.5 MC W.Rokkor-SI brand_Weston You can use this camera

You can use this camera in full manual mode

and can slide freely along the bar

Ednalite #659 adapter to use Series VI filters on Rolleiflex cameras with a Bay 2 filter mount

Fully dimmable

so it may fit those too

Minolta 28mm f2.5 MC W.Rokkor-SI brand_Weston You can use this cameraThe Minolta 28mm f2. 5 MC W. Rokkor SI lens is a wide angle lens for Minolta MD mount 35mm SLR cameras. Smooth focusing, clean diaphragm, and only minor dust in the optics but there is some yellowing. In case youre wondering why theres some yellowing, its because this lens has some lightly radioactive glass elements. Dont worry, youll be fine (do not eat the lens), but worth noting.