Pentax's wide-angle PC-series compact — 28mm f/5 lens, active AF, red-eye LED flash, AA power.
The Pentax PC-550 was a late model in Pentax's PC series of budget 35mm compacts, notable within the line for carrying a 28mm wide-angle lens rather than the usual 35mm. It was made in Japan and also sold in a date-back kit version, slotting beneath the Espio zooms as a simple fixed-lens snapshooter.
The lens is a 28mm f/5 of three elements in three groups, focused by an active autofocus system from 0.8m to infinity and fired at a single 1/100s shutter speed. Film handling is fully automatic with powered wind and rewind, the built-in flash includes a red-eye-reduction LED that lights before exposure, and the viewfinder shows 80% of the frame at 0.63x. Power is two AA alkaline or manganese cells — Pentax specifically warned against Ni-Cd rechargeables.
The 28mm lens makes this a more interesting proposition than most bargain compacts: a genuinely wide view suited to street scenes, interiors and group shots, with the small aperture keeping depth of field generous. It rewards daylight shooting; indoors the flash is doing all the work at f/5.
It will not operate without healthy AA cells, so test power, autofocus activation, flash charge and the wind motor. Look for corrosion in the battery compartment, a clean film door, and check the red-eye LED and flash both fire; on date-kit examples the date back battery is often flat, though it does not stop the camera shooting.