The Olympus E-300 (EVOLT E-300 in North America) is a digital SLR introduced in late 2004, built around the Four Thirds System lens mount. It used a porro-mirror finder design rather than a conventional pentaprism, giving it a flat-topped body distinct from typical DSLRs of the period.

Sales data for the E-300 is thin: a single UK auction hammer result from October 2024 sold for £25, which sits at the low end of the wholesale market for early Four Thirds bodies today. With only one data point, that figure should be treated as indicative rather than a reliable median, and clean, working examples with a kit lens may sell for more at saleroom level. Buyers asking what an E-300 is worth in 2026 should expect prices to remain modest given the camera's age and 8MP sensor.