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Links | Mapping Scotland: An Essay | Copyright and Reproductions | Accessibility Technical Specification (for images created locally by the Charting the Nation project team)(1)Digital camera back:Phase One PowerPhase Resolution: 7072 x 7072 pixels Uninterpolated files (max 143.3 Mb; min 300ppi) 56mm x 56mm frame capture area 42bit internal colour depth, 14 bit per colour precision Native File format: Uncompressed TIFF files with optional Motorola (Mac) or Intel (PC) byte order and header version 6 Capture software: Phase One version 3.1.1 for Power Macintosh Camera body: Hasselblad 501CM Lens: Zeiss 80mm (plus 8mm and 16mm extension tubes for close-up work) Capture: Power Mac G4 400Mhz/Apple 21 inch Studio Monitor with ColorSync Post-capture edits: Adobe Photoshop 5.0 Test charts: Industry standard Kodak Q13 colour separation guide (with metric and imperial scales) and grey scale for reflected work; Kodak Q60 target for 5x4 transparencies Archiving and delivery solutions: Sony DAT DDS3 12Gb tapes (stored off-site) and CD-R Kodak Gold Ultima 650Mb (2) (stored on-site). Copies of each CD-R were provided to the contributing institutions. Discs were written to ISO 660/Joliet format. Kodak claims longevity of 100 years Lighting: 2 Photon Beard 'Highlight'
studio lights: these are cool running, flicker free, 5,400k balanced fluorescent
lamps, with a variable output of 2 tubes (110W), 4 tubes (220W), or 6
tubes (330W). This high colour rendering index (Ra 98) (3)
light source is designed for digital imaging. The lights
are fitted with Perspex safety screens Archival equipment: Copy table with matt black, soft velvet top surface; Clarkson book supports for bound items (large and medium sets), plus snakes; unbleached pure cotton gloves ____________________________(1) These specifications conform to the Code of Practice for the Submission of Digital Imagery as defined by the Digital Imaging Group of the Association of Photographers (November 1999). Back (2) Superseded from February 2001 by Kodak CD-R Ultima 80 (silver-gold alloy, 700Mb). Back (3) A measure of the colour shift objects undergo when illuminated by a light source as compared with the colour of those same objects when illuminated by a reference source (daylight) at the same colour temperature. The index range is from 0 (max shift) to 100 (no shift). Back HOME | About the Project | Contacts | Collaborators | Useful Links | Mapping Scotland: An Essay | Copyright and Reproductions | Accessibility Published by Edinburgh University Library |