Infrared Reflectography (IRR) is a non-invasive method of studying a painting by looking beneath the visible layers of paint. This allows you to examine the underdrawing along with any changes or pentimenti present in the work. Modern sensor technologies, such as the InGaAs sensor used in the Opus Instruments Osiris and Apollo Cameras, allow us to build on these techniques with higher resolution and improved sensitivity to reveal a painting’s secrets like never before.
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The Apollo camera has fomented new research in art history and English literature