Leica's R-mount macro — same as ID 1326, ROM version with electronic contacts.
The Leica Macro-Elmarit-R 100mm f/2.8 (ROM) is a macro telephoto prime for the Leica R SLR at Elmarit (f/2.8) aperture class with dedicated close-focus macro capability. ROM = R8/R9 electronic coding. Leica R mount.
f/2.8 maximum aperture. 100mm focal length (full-frame). Macro close-focus capability. ROM electronic coupling (R8/R9). Manual focus. At approximately 520g. 60mm filter thread. Leica R mount.
The 100mm focal length provides practical working distance between lens and subject for macro photography — more useful than 60mm for subjects that require space for lighting or approach. Also functions as a portrait telephoto at infinity focus. For adapted mirrorless macro use, extension rings may be needed to reach full 1:1 magnification.
On the used market the Leica Macro-Elmarit-R 100mm f/2.8 ROM is a capable macro and portrait prime. Condition checks: 60mm front element, ROM contacts, aperture blade condition, macro focus ring smoothness. Leica R mount — requires adapter for current cameras.