{"product_id":"used-heiland-trd-z-b-w-densitomer-used-1125062619","title":"Used Heiland TRD-Z B\u0026W Densitomer","description":"The Heiland TRD-Z is a precision densitometer designed for black and white photography professionals and darkroom technicians. This optical instrument measures film density and paper density with high accuracy, making it essential for consistent exposure control and print quality assessment.\n\nThe TRD-Z features a compact design with reliable mechanical construction, allowing you to evaluate negative density, paper reflectance, and transmission values. Ideal for fine art photographers, archivists, and darkroom workers who demand precise tonal control and repeatability in their work.\n\nAs a used unit, this densitometer offers excellent value for established practitioners seeking professional-grade measurement tools without premium pricing. Verify operational condition and calibration status before use to ensure accurate readings for your critical darkroom processes.","brand":"Used Miscellaneous","offers":[{"title":"Default Title","offer_id":57075553861897,"sku":"USED-1125062619","price":250.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/9348\/9673\/files\/DSC07272.jpg?v=1779369252","url":"https:\/\/harrisoncameras.co.uk\/products\/used-heiland-trd-z-b-w-densitomer-used-1125062619","provider":"Harrison Cameras","version":"1.0","type":"link"}