Durst - Lambda and Theta Photographic Printers

Lambda and Theta Photographic Printers

The Durst Lambda and Theta models are widely used in the photographic printing industry to produce digital C-Type prints on light sensitive colour and monochrome papers and transparency display materials such as Kodak Duratrans/Duraclear. Images are produced by exposing light sensitive material with RGB laser light which is then developed through the relevant chemical process. The Lambda is a standalone machine the requires a separate chemical processor and takes a 50" roll of paper, whereas the Theta is a 30" machine and has it's chemical processor built in. The Theta is also capable of holding two different paper types at once.

The Durst Lambda is a continuous roll-to-roll single beam, 3-laser (RGB) exposure system giving total size flexibility and achieves an image quality which is superior to all large format printers - photographic, inkjet and electrostatic). The Durst Lambda exposes digital information (raster pixel) directly to conventional photographic media at full continuous tone with a linear writing speed of up to 65 cm (26 in.) per minute with the choice of two resolutions of 200 and 400 ppi (equal to an apparent resolution of 4000 dpi). The Lambda produces images with the highest possible resolution (68 billion colours) and with a radiometric repeatability of 0.025 D per colour. Prints can be produced to an infinite length and when the 50 inch paper width is exceeded, images are automatically divided-up and exposed in strips. —source:, Metro Imaging