Hasselblad XV Lens Adapter  type_Filters which seems to be A

which seems to be A Thing with these lenses

well made ball head with a unique 45-degree clamp which provides extra range of motion at the "front"- ideal for macro use

Interior dimensions are approximately 16 x 9

As shown in the image

this may be the one for you

Hasselblad XV Lens Adapter &nbsptype_Filters which seems to be AThis genuine Hasselblad adapter lets you mount any Hasselblad V mount lens to your Hasselblad X series camera. Its just a tube, so theres no way to use the lens shutters, and no automatic EXIF recording, but its well made and does what its supposed to do. In near new condition, with caps and original box.