Toy lens wide angle lens series pentax q unique lens mount pentax q lens speed 8 focal length 18 mm suitable for sensor type aps c construction prime lens area of use landscape photography close up photography focus manual focus closest focusing distance 27 cm focal length equivalent to 35mm camera 100 mm lens types aspherical ed lens construction groupselements 33 minimum aperture 22 max aperture 8 lens switch afmf coating multicoating m