The Olympus PEN E-P1 is a Micro Four Thirds digital mirrorless camera launched in 2009 as the first model in Olympus's revived PEN line. Styled after the original half-frame PEN cameras of the late 1950s and 1960s, it was positioned as a compact, interchangeable-lens alternative to a DSLR.

Sales data for the PEN E-P1 is thin, with one UK auction hammer result on file at £170 in 2023, so a meaningful median or range cannot yet be established at saleroom level. As of 2026, this single data point is the best available guide to what a body alone is worth today, and prices in the wider auction market are likely to be sensitive to whether a kit lens is included and to overall cosmetic condition.