Minolta 28mm f2.5 MC W.Rokkor-SI brand_Billingham probably not this one

probably not this one

good light seals

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

but it's a good size for a Rebel or similar

Minolta 28mm f2.5 MC W.Rokkor-SI brand_Billingham probably not this oneThe 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.