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  • Direct to Media PrintingDirect to Media Large Format Printing - Print your image directly to a material of your choice. Print directly to Perspex, aluminium, wood, glass, Dibond, Slate and more.
  • Professional Photographic PrintingProfessional photographic printing including C type prints, Giclee prints to black and white prints. Lambda prints, large format Lightjets and Duratrans.
  • Photographic Framing and MountingFull bespoke photographic framing options from classic wood frames, card, Fomaex, Perspex photo mounting to specially designed lightboxes.
  • Creative Retouch ServicesA talented team of London creative retouchers who combine expertise with creative advice for professional photographic services.
  • Photographic Film Processing & ScanningPhotographic film processing and scanning, offering a wide range of high quality photographic film lab services in London.
  • Student Photographic Printing & Processing Student services for photo printing, mounting and framing plus film lab services for end of year shows and exhibitions.

What Is Laser Printing?

Lambda and Lightjet are both brands of laser printer companies (Durst and Océ, respectively) that developed innovative digital replacements for traditional darkroom printing. Rather than using a bulb to expose light on photographic paper, these printers use three lasers (red, green and blue) to expose light onto photographic silver halide paper, advancing through the Lambda and in the Lightjet, rolled inside a large drum. The exposed paper is then processed in photographic chemistry to create a perfectly archival, digital but traditional C Type print. Hence the term, "Digital C Type".

The Durst Lambda was one of the first ever laser printers to produce C Type photographic prints. The technology uses a continuous roll-to-roll single beam, 3-laser (RGB) exposure system which means that you can make prints up to any length, with a width of up to 50". How does it work? Digital information is exposed directly onto conventional photographic media. Linear writing speed is superfast with a choice of 200 and 400 ppi (equal to an apparent resolution of 4000 dpi)resolution. The Lambda produces images with the highest possible resolution (68 billion colours!!!)

Laser systems rely on elaborate combinations of rotating mirrors and lenses that must remain in alignment through use. 'Uniform spot size and shape' means that even the edges and corners of a Lightjet print are as razor sharp as the centre. This uniformity is better than any other optical printing technique. This technology results in better image sharpness, uniform density and colour and the highest geometric accuracy over the whole print.

But at Metro Imaging we know that the needs of photographers, are quite specific and based more around the quality of the image, rather than the speed or efficiency of the machine. For artists and photographers the key issue is resolution and image quality. Here laser printers win hands down.

Compare, for example the Durst Lambda (laser) printer with two commonly used LED printers: the Durst (LED) Theta printer and ZBE's Chromira:

Printer PPI DPI equivalent
Durst Theta LED 254ppi 1,200 dpi
ZBE Chromira 300ppi 1500 dpi
Durst Lambda Laser 400ppi 4000dpi
Océ Lightjet Laser 300ppi 4000dpi
It can be confusing reading all these numbers and figures. In the end, the results speak for themselves. There's a good discussion on the subject here.

Read more: all sources are all the manufacturers own materials:
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