Pen series in name and compact spirit for their EP line of Digital SLRs, but the quasi-retro design of those new cameras, while not unappealing, pale in comparison to the keen contours of their inspiration.
The original Pen F series were half-frame SLRs that made two photos - in portrait orientation - on one frame of 35mm film.(Pen EE and other models were less expensive, fixed-lens cameras.) More than a dozen lenses were produced in this particular mount, which is not compatible with the standard OM mount (though an adapter was available). The most sought after of these Pen-mount lenses is the 38mm f2.8 "pancake lens", named not for syrup and blueberries but for its even more compact design. You could buy a lot of short-stacks for what these lenses go for. The only lens I have for this camera is the 40mm f 1.4 pictured - but it's a sweet fast lens.
The double-capacity of the half-frame camera was used to sell this series as a means to conserve film, but I like it for the possible juxtapositions.