Schneider-Kreuznach G-Claron · 240mm f/9

{"overview":"The Schneider-Kreuznach 240mm f\/9 G-Claron is a large-format process lens, originally designed for graphic arts reproduction and copy work at high magnifications. Its compact barrel and modest f\/9 maximum aperture made it popular among large-format photographers seeking a lightweight long-focal-length option, typically mounted in a shutter for field use on 5x4, 5x7 and 8x10 cameras.","market_narrative":"UK auction activity for the 240mm f\/9 G-Claron is thin, with the most recent hammer result we have on file from November 2025 selling for £60 at saleroom level — a wholesale figure that excludes buyer's and seller's commission. With only a single data point in our records as of 2026, that price should be treated as indicative rather than a firm market value, and clean examples mounted in a working Copal or Compur shutter typically sell for considerably more than a bare barrel-mount copy.","buying_guide":"Inspect the glass carefully for fungus, internal haze and cleaning marks, all of which are common on process lenses that have spent decades in print shops. Check the aperture blades for oil migration and confirm the iris moves smoothly across its full range; if the lens is in shutter, fire it at every speed to listen for sticky slow speeds, and look for any signs of separation at the cemented groups or scratches to the coating.","specs":"Listed as a 240mm focal length with a maximum aperture of f\/9; no further specifications were provided in the source data.","faq":[{"q":"What is a Schneider 240mm f\/9 G-Claron worth at UK auction?","a":"Based on the limited data available, one example sold for £60 hammer in November 2025; with only one recorded sale, this should be read as a single data point rather than a reliable market value."},{"q":"How much does a 240mm G-Claron sell for in shutter versus barrel?","a":"Our sales history does not specify whether the £60 sale was a barrel or shuttered example, but in general a G-Claron mounted in a working Copal shutter commands a meaningful premium over a bare barrel copy because it can be used directly on a field camera."},{"q":"Is the 240mm G-Claron suitable for 8x10 use?","a":"G-Claron lenses were designed as process optics for high-magnification copy work, and many large-format photographers use the 240mm on 8x10 at infinity, though coverage and corner performance depend on the specific aperture and subject distance."},{"q":"What should I check before buying a used G-Claron?","a":"Check for fungus, haze, oil on the aperture blades, coating scratches and any signs of element separation, and if the lens is in shutter, test every speed to confirm the slow speeds are not sticking."}],"confidence":30,"reasoning":"Only a single sales record and no SPECS or variant data were provided, so the price commentary rests on one data point and the technical description is limited to widely-known categorisation."}