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CCD camera systems
A cooled CCD scientific camera can be used together with interferential filters to study the artwork in the visible and near IR range.
Multispectral images can be used for accurate colorimetry and color image reproduction because the color-matching functions of the human visual system are described more precisely by combining the sensitivity functions of a multispectral system then by using RGB camera sensitivity.
The multispectral data achieved can be also used to estimate surface spectral reflectance, which is a inherent physical property of the artwork surface. In this way we infer information about the nature and the chemical composition of the materials on them, and with this system this information can be acquired at the same time on the whole surface of the object.

CCD technical data

- Scientific Cooled CCD camera (DTA)
- Image sensor:KAF 6303e (Kodak), UV enhanced, high quantum efficiency till 1100 nm, front side illuminated transparent gate true two phase technology sensor 3072x2048 pixels, 9x9micron.
- Full Well Capacity: 100 ke
- Dark Current: 0.5 e-/pixelsec
- Quantum Efficency a 450,550,650 nm: 40, 55, 64
- Fill Factor: 100%
- 50 mm objective (Rikenon, Ricoh 50 mm F 1,7)

- 16 2” interferential filters (LOT oriel). spaced at 50nm from 350 nm to 1100 nm, typical peak transmittance of 80-90% and FWHM of 40-50 nm

- Software Art-Test

Paris – C2RMF (Palais du Louvre) Roma – Chiesa del Gesù
Providing advanced technology for art study and care
Multilayer (patented method)
IR Reflectography
Visible Multispectral Imaging
Multispectral UV Fluorescence
Thermography
3D Acquisition and Modeling
Thermoluminescence
Digital X-rays
Data Processing and Modeling
Custom Data Presentation
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Art-Test s.n.c. Pisa Italy
P.I. 01766860504