From the Manufacturer:
Featuring truly ground breaking features, the enhanced Sinarback eXact takes digital back features to an entirely new level — whilst maintaining Sinar’s uncompromising standards for quality and long-lasting tools for the production of outstanding and highest-quality professional digital images.
The Sinarback eXact features multiple shooting modes. There are two XL modes where the back shoots with an effective 192 MP sensor. There’s the XL 4-shot mode, which provides 192 MP ‘single-shot quality’. Even better, there’s also the XL 16- shot mode, which samples real colours from the subject for each half-pixel step in both directions. It’s this method which provides un-interpolated colour sampling for cleaner, more accurate colours with greater contour sharpness unmatched by any other device. The new Sinarback eXact sets new benchmarks for both image-quality and the integrity of your data! Naturally, the Sinarback eXact ideally suits applications where larger file sizes and/or highest quality/colour-accuracy is necessary for the job at hand.
Wherever work is being performed in the field of still-life photography or image archiving, there are Sinar Digital Backs in use. Multishot backs produce 4x higher color resolution than simple Oneshot models. Such differences are obvious and they cannot be compensated by means of high-performance Oneshot products. With 4-shot exposures, the CCD pixel matrix is shifted 3-times from one exposure to the next by exact width of one pixel raster, so that every picture point is captured in each one of the primary colors(red, blue, 2x green). Another decisive argument in favor of the multishot technique is the clearly reduced Moiré effect, which, because of the controlled layering of colors, becomes barely noticeable. With this exposure technique, the image interpolation that is needed with oneshot backs can be omitted completely.
In addition to numerous other factors, the renowned highest quality of Sinar Digital Backs is due to their uncompromised design. Components generating heat and therefore color noise are consequently eliminated. Focusing on demanding studio photography and digitizations of all kinds, Sinar today produces digital backs that yield hitherto unachieved image quality without display, batteries and internal storage. In this context, Sinar places great emphasis on the cooling of sensors. Therefore, the well thought-out 2-stage active cooling is an important precondition for the very best image quality and it also assures the longevity of the product.