Pentax Screw-K Mount Adapter Category_Lens Filters just like photos from your

just like photos from your local print shop

ILFORD HP5 PLUS is a high speed

and also have 1/4" and 3/8" tapped

it also has bold frame numbering for whole frames and letters to indicate half frame numbering

If it does not have this red ring

Pentax Screw-K Mount Adapter Category_Lens Filters just like photos from yourThis Pentax Lens Mount Adapter allows screw mount lenses to fit on modern K bayonet mount cameras. When used with this adapter, a screw mount (Universal Thread) lens will focus to infinity (cannot be used for automatic diaphragm or open aperture metering). When used on any Pentax automatic camera aperture priority camera automation is retained when using screw mount lenses and accessories.