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"Profilo nuziale di giovane dama" Original Profile Nuziale di Giovane Dama Leonardo Da Vinci Circa 1480 - 1490 Vellum, mixed-media of white, red and black chalks with additions of watercolor Dim: 23,87 X 33,27 cm 9,39 x 13,09 inches. Strengthened with oak panel backing. Leonardo Da Vinci Mutispectral Digitization Profile Nuziale di Giovane Dama Multispectral Digitization with the 13 band Lumiere Technology camera at 240 million pixels & 1000 DPI = 1600 pixels/mm2 Copyright: Private coll.Switzerland & Lumiere Technology Reflectography UV 380 nanometers Profile Nuziale di Giovane Dama Reflectography near UV 380 nanometers To study the varnich aspect and the last retouches. Infra Red 900 nanometers Profile Nuziale di Giovane Dama Reflectography Infra Red 900 nanometers To study inpaints, underdrawings & restorations Infra Red Emissio Profile Nuziale di Giovane Dama Reflectography Emissio Infra Red IR info extraction without superficial layer influence To study the first drawing with a unique accuracy. False Color Reflectography IR 900 nanometers Profile Nuziale di Giovane Dama Reflectography False Color Infra Red 900 To study ancient restoration and pigment discrimination in the invisible range False Color Reflectography IR 1000 nanometers Profile Nuziale di Giovane Dama Reflectography False Color Infra Red 1000 To study ancient restoration and pigment discrimination in the invisible range Raking Light Reflectography Profile Nuziale di Giovane Dama Reflectography Raking Light D65 from the bottom To study the relief of the vellum from the bottom Raking Light Reflectography D65 Left Profile Nuziale di Giovane Dama Reflectography Raking Light D65 from the left To study the relief of the vellum from the left Comparison with a Leonardo da Vinci drawing Profile Nuziale di Giovane Dama Proposal for comparison of the Reflectography Emissio IR with a Leonardo da Vinci Drawing from the Windsor Castle Collection Luminance & Color Space Color axe red green vision Profile Nuziale di Giovane Dama Reflectography study of the Luminance & the Color Space To study the color space and the light repartition. Color axe red green vision - Luminance - Color axe yelow blue vision A new lecture of the artwork Color axe red green vision - Luminance - Color axe yelow blue vision Xray Radiography Profile Nuziale di Giovane Dama X Ray Radiography To study the lead white of the restorations and the oak's nervures behind the vellum. Pigments & Restorations Study on way 1 Profile Nuziale di Giovane Dama Behind each pixel Lumiere Technology (LT) obtains a spectrum. 13 measures generating 65 values. LT team is studying the original pigments of this Profilo and the 18th or 19th centuries restorations made on this vellum, by virtual removals in 25 areas (pixels) without any destructive removal, as LT made it on "the Mona Lisa" or on "the Lady with an Ermine" after digitization. The study is still on way to adapt LT pigments data base on vellum instead on gesso. Meanwhile the spectrum obtained by LT digitization reveal - a mixed-media, black chalk, red chalk, white chalk, with ink for the shadows restorations instead of the original black chalk . Many restorations made "au gout du jour" are on the face, hairs and dress, and here is a first layout to describe how the restorer proceeded. - The pink (4) of the carnation restored is made with a lead white and "laque de garance". - The restorations in hairs are made with Red Ocre, wash tint. - (21) Originally a priori was red tinted with Red Chalk, and is restored with RedOcre. - The dress (23) is made a priori with ocre, and the dress (24) a priori with a black applied by transparency on the vellum, giving this green-dark color. In the same time, traditional analysis for datation of the vellum and of some pigments have been ordered in a prestigious research center in Europe. It is a long way to deliver such information on this matter. Beyond this multispectral scan at such resolution (1600 measures = 1600 pixels/mm2) in the visible and invisible range, a new investigation tool and service can help art historians, conservators, experts and researchers in their authentification studies. Pascal Cotte, CTO and founder of LT remains at their disposal for any information: Cotte.Pascal@free.fr http://www.lumiere-technology.com 2 10 19 16 14 4 Back : the oak panel Profile Nuziale di Giovane Dama Back - Oak Panel - Back - Oak Panel - Panchromatic HD Back - Oak Panel - D65 LD Back - Oak Panel - IR 900 HD

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