Sigma's Foveon compact — the DP2 Merrill, fixed normal prime, X3 sensor, APS-C, no finder, 2012.
The Sigma DP2 Merrill is a fixed-lens digital compact announced in 2012, part of Sigma's DP Merrill series and built around the same high-resolution Foveon X3 sensor as the SD1 Merrill. Within the series it carried a normal-perspective fixed prime rather than the DP1 Merrill's wide-angle lens, aimed at general and portrait-length shooting.
It is a fixed-lens compact with no interchangeable mount and no reflex mirror, so it has no lens mount and takes no removable lenses. Its APS-C-class Foveon X3 sensor records red, green and blue at each location through three stacked layers instead of interpolating colour, matched to a fixed normal-angle prime. The body has no in-body stabilisation and no meaningful video, composes on the rear screen rather than a built-in finder, records raw for Sigma Photo Pro, and takes SD-type media.
The DP2 Merrill is valued for the distinct Foveon rendering, giving fine per-pixel detail and a particular colour character, well suited to portrait, street and general photography at low ISO. Its normal focal length makes it versatile within the fixed-lens format, though it is slow to operate with limited high-ISO reach and rewards a deliberate shooting style.
On the used market, expect slow operation and heavy battery drain typical of Foveon compacts, so test power and carry several spare batteries. Check the fixed lens and sensor area for dust or marks, inspect the rear screen for dead or stuck pixels, and confirm the card and battery doors latch. Raw output depends on Sigma Photo Pro, and service support is limited, so buy a tested example and factor in the workflow.