What are Duratrans?
Backlit transparencies (also known as Duratrans or Fujitrans) are photographs or images printed on a translucent-base material, ideal for lightbox display.
We print both Duratrans (which have a translucent base) and Duraclears (which have a transparent base, commonly used in lightboxes with diffusers) using our Lambda c-type process – which is archival and similar to a traditional photographic process but with all of the benefits of digital control.
Lambda technology uses three lasers (RGB – red, green and blue) merged into one beam. These lasers expose photo-sensitive transparent film with your image before this is traditionally ‘wet’ processed, much like traditional photographic printing. Our Lambda printer includes three wash tanks rather than the standard two, which increases archival stability.
We can achieve true continuous tone, ultra sharp photographic images with crisp edge-to-edge printing and absolutely no distortion using this process. Digital files, negatives and transparencies can be used to make Duratran prints in full colour or black and white, up to 1219 mm (48 inches) in width.
Why should I choose Duratran printing?
Because our Duratrans use the Lambda C-type process, they are archival, durable and suitable for gallery exhibitions and interior displays.
Duratrans are ideal for displaying in lightboxes as the translucent base of the material used for printing allows some light to pass through from behind, illuminating and enhancing your work.
As with our all of our printing services, we aim to turnaround print orders within 48 hours of your order being confirmed by a member of our Client Support Team. Turnaround times may be longer when a test print is required. Please speak to us to confirm turnaround times on large print orders or when working to tight deadlines.
Our preferred choice of colour profile for the best possible photographic printing with our very carefully controlled ICC workflow is Adobe RGB (1998), although we do accept files in other colour profiles- if in doubt, please do not hesitate to give us a call on 020 7384 6200.
You can also download our Lambda Profile to see a fairly accurate softproof preview of the printed output on your screen (if your monitor is properly calibrated). We calibrate our Lambda Colour Profile frequently so please download the latest version from the link above.
After downloading the profile of your choice simply drop it into the following folder on your mac – / Library / ColorSync / Profiles folder or the / Users / username / Library / ColorSync / Profiles folder. Then restart Photoshop, open your image and choose from the top menu Edit > Assign Profile. In the dialogue box that appears select the Lambda profile from the Profile drop menu. This temporarily assigns the Lambda profile to the image without converting colours to the profile space. You can permanently assign the Lambda Profile to your image by choosing from the top menu Edit > Convert to Profile and then from the dialogue box that appears choose the Lambda Profile from the Destination Space Profile drop menu.
For PC users the path to place the Lambda profile in is WINDOWS system32 spool drivers colour folder.
If you have any questions about colour profiles please feel free to call and one of our friendly and knowledgeable staff will be pleased to help you.
As a general guide for colour prints on either our Giclée or Lambda printers, your images should be in RGB, any layers flattened and preferably saved as a Tiff file (.tif) with LZW compression. This will maximize the quality of your image and also keep the file size down. Other file formats are acceptable such as a layered tiff or photoshop document (.psd) but these will have an inherently larger file size. Jpegs (.jpg) are fine for smaller prints but because of their image lossy nature it is not recommended that you save any files in this format. Images shot as in-camera Jpegs are once again mostly suited to small to medium prints. Naturally we are also happy to accept RAW camera files.
Once again, please do not hesitate to get in contact if you have any questions about file formats for photographic prints.
We check all files prior to printing and will call you should we notice any loss of quality at the print size you require.
As a rule of thumb – the larger the print size required, the larger the file size must be. There is however some leeway with the image resolution or dpi and how our Giclée or Lambda printers deal with this. For instance: if your image file is approximately 20MB at 400 dpi it will make an excellent print at A5 size. The same 20MB file will still make an excellent 10×8” print at 300 dpi, and a very good 16×12” print at 200 dpi. If you are in any doubt, go for a higher resolution for the print size required. Please contact us if you need any further assistance with file sizes for photographic prints.
Print size varies depending on the service used and the chosen paper type (some Giclée papers are simply not available in full width). As a guide;
Lambda C-type prints can be produced in sizes up to 48 inches in width and up to the length of an entire roll – which is a massive 1,968 inches.
Giclée prints are available in sizes up to 60 inches wide, and just about any length you desire.
Using Direct to Media printing, the largest single sheet size we can print is 2 x 3m, or just over 78 x 118 inches. We do have the capacity to print larger than this, roll to roll (so using banner material or other flexible materials).
The largest size we can produce ChromaLuxe fine art prints is 70” x 40”.
To order a test strip, please upload your image via our upload form and specify the size of your final print. This helps us to ensure that the image we take the test print from is at the correct size for the best representation of the final outcome. Test prints are produced as a full-size section of your image, not the whole thing – if you have a particular part of your image which you’d like to see on your test print, please let us know.
They can! We ship internationally, using a range of couriers, and can wrap and pack your test prints either rolled or flat depending on the size of your test and/or your preference. Once received, we can liaise with you over the phone for any amendments – to make sure your final print is exactly as you expect.
We believe the relationship between the artist and the team at the final stages of production is what makes outstanding images into memorable showpieces. For this reason, our premier printing services include one-to-one time with our expert printing team to view your files on colour-corrected monitors. Checks with our expert printing team include the following:
- Colour management
- Adding borders
- Cropping images
- Other minor edits
To ensure your work is exactly as you envision, we provide free test prints for our printing services. Please request these at your time of ordering. Turnaround times are subject to test approval.
Yes! With clients around the world, we’ve shipped our clients work Internationally and can advise and quote on delivery options to suit your requirements. Our bespoke crating is ideal for large items and international delivery – ensuring your work is packaged to perfection and protected until it reaches its destination.
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