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Your best source for quality printing.
LightJet
Simply the very best image quality of any digital printing process.
The LightJet machine provides a superior method of exposing photographic film.
Generally C-print or Duratran materials are used. It is a continuous tone output devise therefore there is no dot and the resolution is best described as pixels per inch rather than dots per inch.
LightJet machines print at 3 resolutions: 200PPI, 305PPI and 406PPI.
Generally all of our large format prints are output at 305 or 200 ppi and small prints at 406 ppi. In theory your files would need to be,for example, 305 PPI at full size. We have tested the quality of prints at full resolution (305PPI) and half resolution (152.5 PPI) and find that there is no visible difference in sharpness or quality. Your files should be prepared at 152.5 PPI at full size for optimal resolution with smallest file size.
LightJet is sharper than a Lambda.
Lightjet uses a spinning mirror to direct laser light directly to stationary media (C Print Paper or Duratran Film). This ensures constant pixel size, shape and intensity over the entire image.
Lambda uses a laser light through a lens to expose the media. Any time light goes through a lens it bends or refracts the light causing distortion. Fine lines output at 400 PPI on a Lambda machine do not look as sharp as fine lines output at 305PPI on a LightJet machine. This is due to the laser light bending through a lens instead of reflecting off of a flat mirror.
LightJet offers the best color Fidelity
LightJet uses a 36 bit color space capable of producing 68 billion colors.
Lambda uses a maximum of 24 bit color producing only 16.7 million colors.
More available colors results in more accurate color prints.
LightJet has superior capabilities in rendering a sharper image than a Lambda if your file size is less than the optimal resolution.
The LightJet has enhanced sharpness due to superior hardware interpolation of files.Using a proprietary adaptive 16-point bi-cubic algorithm, the LightJet enhances sharpness through on-the-fly pixel interpolation. Because the pixels are faithful to the original image, the system can output small files at high resolution with no loss of sharpness. Unlike software interpolators which limit the flexibility of the interpolation process, Lightjet hardware uses complex algorithms to produce the best possible results. For example, the LightJets' adaptive interpolation gives users the ability to sharpen some areas of an image, while maintaining softness in other areas - no other printer has this capability.


Goddu Printing, Inc.
(800) 207-1187
(603) 890-2406 · (603) 890-2407 fax
stevegoddu@godduprinting.com