Royal Auto Tele Converter 2x for Pentax K mercury or R mount: it is

or R mount: it is for the short-lived series of EX cameras

ideal for precision macro work (or anywhere else you need a magnified view) This hood is in decent condition overall

Camera compartment measures approximately 15x20x26cm

you may need to meter stopped-down on this one

except for- and I am going to take a few breaths to try to calm down before I continue this description- an ID number engraved on the side of the viewfinder

Royal Auto Tele Converter 2x for Pentax K mercury or R mount: it isThe Royal Auto Tele Converter 2x is a little teleconverter for Pentax K mount lenses and cameras. Nothing fancy, just doubles your focal length at the cost of a few meagre stops of light.