The Olympus Pen EE-3 is a half-frame 35mm viewfinder camera, part of the Pen series introduced by Olympus in the 1960s–1970s. It features a fixed lens and a selenium-cell automatic exposure system, positioned when new as a simple, compact point-and-shoot for everyday users.

Sales data for the Pen EE-3 is very limited, with a single recent UK auction hammer result of £80 in May 2025 — a wholesale level at saleroom level rather than a retail asking price. On that basis, today a clean working example appears to sell for around £80, though with so few data points the true market value range is uncertain and condition will heavily influence what any individual camera is worth.