{"overview":"The Leitz 100mm f\/2.8 APO-Macro-Elmarit-R is a short-telephoto macro lens for the Leica R-mount SLR system, designed for use on Leicaflex and R-series bodies. It combines apochromatic colour correction with close-focus capability, making it one of the more specialised optics in the R lineup.","market_narrative":"Hammer prices for clean copies at UK auction have ranged from £300 to £1,600 across the records available, with the median sitting near £1,300 — note these are saleroom results, wholesale levels that exclude commission rather than retail asking prices. Through the mid-2010s the lens consistently sold for £1,300–£1,600, but a 2025 result closed at just £300, suggesting today's R-mount market is softer and condition-sensitive; as of 2026 a fully working, cosmetically clean example is still what commands the upper end of that range. Buyers should expect a wide spread in value depending on glass, mechanics, and completeness.","buying_guide":"Inspect the front and rear elements carefully for fungus, haze, and cleaning marks on the coatings, as these are the most common faults on stored R glass. Check the aperture blades for oil migration, run the focus through its full close-focus travel to confirm it is smooth rather than stiff or sticky, and look for any signs of separation at cemented element interfaces. Confirm the focusing helicoid has no play and that the aperture clicks crisply at every stop.","specs":"No detailed specifications were supplied beyond focal length, maximum aperture, and mount: a 100mm f\/2.8 apochromatic macro lens in Leica R bayonet.","faq":[{"q":"What is a Leitz 100mm f\/2.8 APO-Macro-Elmarit-R worth today?","a":"Based on UK auction hammer results, the lens has sold for between £300 and £1,600, with a median price around £1,300. Condition and completeness account for most of the spread in value."},{"q":"How much does a 100mm APO-Macro-Elmarit-R sell for at UK auction?","a":"Historical hammer prices clustered at £1,300–£1,600 during 2015–2019, but a 2025 sale closed at £300, indicating recent softening. A clean, working copy still tends to fetch the upper end of that range."},{"q":"Will the APO-Macro-Elmarit-R fit a Leica M camera?","a":"No — the -R designation is the Leica R SLR bayonet, which is physically incompatible with the M rangefinder mount. It is intended for Leicaflex and R-series bodies."},{"q":"Why do prices vary so widely for this lens?","a":"The sales record shows a £300 to £1,600 spread, which reflects how much condition matters on R glass: fungus, haze, oily blades, and stiff focus can all drop the price sharply versus a clean, fully functional example."}],"confidence":45,"reasoning":"Only four auction records are available with no detailed specs or variant data supplied, and the single recent 2025 result is a significant outlier relative to older sales, limiting certainty on current market level."}