The Leitz 100mm f/4 Macro-Elmar-R is a short telephoto macro lens in Leica's R bayonet mount, intended for SLR Reflex bodies such as the R3 through R9. The moderate f/4 maximum aperture reflects its close-up design brief, where optical correction at near distances takes priority over outright speed.

UK auction hammer results for this lens are thin on the ground, but the two recorded sales span £175 to £300, giving a midpoint around £237. The £300 figure dates back to 2006, while a clean copy sold for £175 at UK auction in 2024, suggesting that in today's saleroom climate a tidy example typically sells for somewhere in the lower-to-middle of that range before commission is added. Condition, glass clarity and the presence of the original hood and caps are the main value levers at this price point in 2026.