At PhotoPlus Expo 2013, Sinar announced a new solution for enhancing high end digital capture color accuracy for studio photography.
CTM (Color To Match) is a multispectral dual-pass filter solution for highly accurate color reproduction in digital high-end photography. It corresponds to the visible spectrum of the human eye in the range of 390 – 700 nanometers. This dual filter solution has been engineered together with the Rochester Institute of Technology (RIT), Rochester, USA, and corrects for known color deficiencies in the Bayer pattern coating applied to photography CCD sensor arrays. CTM was developed exclusively for Sinar digital backs.
This extreme color accuracy is especially required in digitization of valuable cultural objects of art, in reprography, scientific and advertising photography. The results achieved are digital image files with unmatched color accuracy that guarantee an efficient workflow and a high throughput.
This graphical comparison illustrates the outstanding color accuracy of Sinar CTM (Color To Match, left) compared to an image taken with a current, commercially available digital back (right). The arrow diagrams show the target/actual results for the corresponding colors. Analyses of other digital backs may vary, but overall they show similar deviations from the nominal values.
CTM exclusively works with the Sinarback eVolution75H, 86H and eXact. The standard infrared filter needs to be replaced by a clear glass filter or these digitalbacks can be ordered with clear glass filters (552.45.02X). CTM is a multi-shot application because capturing one-shot images is showing a permanent large color deviation and an obvious lower color resolution. There are two high quality color filters (blue and yellow) integrated in the Sinar CTM Slider mounted in front of the lens like a Sinar LC Shutter 100. CaptureFlow RePro SW automatically provides two multi-shots (4-shot blue and 4-shot yellow).
A dedicated engineered software tool – developed by RIT – will merge the two multi-shot images by using a complex scientific algorithm that precisely meets the colors for the human visible spectrum. The operator or photographer doesn’t recognize any inconveniences of this high scientific software tool because Sinar has smoothly integrated the process into the workflow of Sinar CaptureFlow.