The JumboScan is the most flexible large format digital scanning system in the world; being used on a daily basis by government agencies, service bureaus, archives, museums and private sector organizations to scan maps, engineering drawings, newspapers, historical manuscripts and fine art in fixed or portable settings at high resolution and very wide color gamut, with high geometric accuracy and orthogonal precision, and absolute protection from ‘bad’ UV light and heat damage.
The camera utilizes a 12,000-pixel monolinear CCD array that is stepped up to 20,000 lines across stationary flat and multidimensional objects from A4 (letter sized) up to 6.56 feet by 16.40 feet to produce an image equivalent to 240 megapixels per channel. The camera is portable and can be mounted in various orientations to scan objects in multiple situations.
For example, the camera can be mounted on
- a] a column to scan objects on a copyboard & book cradle,
- b] a ceiling bracket to scan objects on floors tables and copyboards,
- c] on a tripod to scan objects on easels and
- d] a wall bracket to produce geometrically precise images.
Depending on model, geometric accuracy ranges from 0.1% to 0.005% EMQ (Average Quadratic Error) in any direction across an object scanned in bitonal and grayscale and color.
The JumboScan uses the JumboLux, a multidirectional, self-calibrating synchronized projector lighting system that momentarily projects a narrow beam of homogenous light, synchronized with the CCD array movement, across the scanned object for each channel scanned. This patented approach provides perfectly homogenous light and avoids surface temperature increases that
could adversely affect preservation by fading or damaging fine art, watercolors and archival documents.
The JumboScan captures and transfers image files at 280 MB/second to a MacIntosh running PhotoShop CS equipped with a PhotoShop Plug-in to manage a wide range of user controls including calibration (gamma curves), resolution, focus (adjustable to 1/400th of an inch), cropping and more. Prescans take two (2) seconds regardless of reflective/transparent material size.
Depending on lens, resolution and object size, bitonal and grayscale scans of reflective A (A4) size documents at 300 DPI take 2 seconds or less and RGB color scans take 8 seconds or less. Bitonal and grayscale images are output directly, eliminating time-wasting interpolation from color.
The JumboScan can be equipped with several optional accessories to increase its flexibility in scanning a wide variety of reflective, transparent and small three-dimensional objects. The Book Handling System features a multi-dimensionally articulated book cradle to enable non-destructive handling of fragile flat, rolled and bound (book) documents during the scanning
process. The Transparency Module enables positive and negative transparencies (including x-rays) up to 22 inches by 34 inches to be scanned at high resolutions. The Vacuum Easel Module enables reflective documents up to 40 inches by 60 inches to be held perfectly flat for sharp image capture.