United Kingdom, Harrietsham
... a better image quality. Knight Optical offers diamond turned aspherics from a range of infrared materials including Germanium (Ge), Calcium Fluoride (CaF₂), Zinc Sulphide (ZnS), Zinc Selenide (ZnSe), Aluminium (Al) and chalcogenide glasses like AMTIR (Ge33As12Se55 ) PDF FOR INFO Material::Germanium, ZnSe, Caf2, Silicon, Zinc Selenide (For LWIR) Diameter::Up to 200mm dia +0, -0.02mm Thickness::+/- 0.2mm Flatness::< 1/2 wave over 90% aperture Surface quality::< 40-20 scratch/dig Parallelism::5 arcmin Coating::AR/DLC (3-5 micron, 7-14 micron, 10-12 micron)...
United Kingdom, West Bromwich
...Available in all photographic sizes suitable for mouldings approx. 10-50mm wide Thickness: 1.8 & 2.2mm Made to hang or stand Landscape/Portrait 100% recycled material with one side varnished black & leather embossed ** Ask for a quote **...
United Kingdom, High Peak
Dave Butcher is a fine art photographer and an Ilford Master Printer with over 40 years experience in the photographic industry. The Dave Butcher Black and White Photo Library contains tens of thousands of images as archivally processed silver gelatine film negatives, mostly medium format 7x6cm and 6x6cm. These can be printed directly onto traditional darkroom materials or scanned for use in many...
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