Image Resolution: The actual dimensions of your final image in print are dependant upon the pixel dimensions of the image file at a specific image resolution. To achieve the highest print quality from our Epson Inkjet equipment the resolution of your image should be set to 360 ppi. When each dimension of an image (in pixels) is divided by this resolution for print, the result will equal its physical dimensions on the print (in inches). For example, an image with the pixel dimensions of 2880 x 3600 will be 8″ x 10″ on the print, if printed at a resolution of 360 ppi (pixels per inch). The maximum pixel dimensions of an image straight from the camera are referred to as the native pixel dimensions of the image. If one chooses to enlarge or reduce an image beyond its native image dimensions while maintaining a specific print resolution (360 ppi for example), computer interpolation comes into effect. Interpolation (especially from enlargement) beyond the native image size should be avoided unless absolutely necessary.
Image interpolation: as mentioned above, should be avoided where possible, especially by the printer driver itself. If an enlargement is required which takes the image beyond its maximum native pixel dimensions at 360 ppi, you could release any resolution locks in Photoshop or Lightroom by unchecking Resample in Photoshop’s Image Size menu or Don’t Enlarge in Lightroom’s export module and, as you enlarge, let the resolution reduce to as low as 180 ppi, as a last resort. This will allow you to achieve a more extreme enlargement without interpolation by the printer driver which should especially be avoided in the interest of achieving the highest quality. If you do this, it is important that you let us know what you have done when you submit your image for printing, so that we don’t see the low resolution setting in the image as an error and so that we can adjust for optimum quality at our end. If you need assistance with configuring your image for enlargement beyond the native image resolution, please feel free to contact us. For image enlargements, we employ special tools and techniques to achieve optimum image quality in print.
Acceptable File Formats: For the highest quality print, your file should be flattened and saved in 16 Bit Tiff or PSD format. The highest quality and most accurate output for printing will come from those file formats. For standard basic level prints or proofs, 8 bit JPEG (first generation saved at 100% highest quality) can be submitted. Files can be submitted on USB, SD or CF memory cards, DVD, CD or uploaded to our servers. See our File Upload page.n Alternatively, feel free to use DropBox, Google Drive, Box, We Transfer, Hightail, etc.
Colour Management: Our workflow is fully colour managed because a colour managed workflow is the only way to achieve consistent, accurate, predictable and repeatable colour. Colour will be accurate to our screen display ONLY if files were prepared using a properly calibrated display and you are following correct soft proofing procedures. We strongly urge you to calibrate your display regularly using a good calibrator such as an X-Rite i1Display Pro or Datacolor Spyder Elite.
For Fine Art from RGB image files, ProPhoto RGB is our preferred working space profile. While images in or Adobe RGB 1998 and sRGB can also be accepted, ProPhoto RGB is preferred to achieve the highest quality, largest gamut colour in print. Some colour clipping may occur with all profiles, depending upon your choice of paper. But, the least clipping of colour will occur with images in ProPhoto RGB. Our default profile for images without embedded profiles is Adobe RGB. CMYK files can be RIPped and printed upon request.
Our monitors are calibrated regularly with Eizo and X-Rite i1Pro2 display calibrators. Our printers are calibrated religiously. We generate our own custom ICC profiles for all of our printers and every paper on which we print, using X-Rite i1Isis Spectrophotometers. We will also create custom profiles for those who wish to make their own quality prints on their own equipment. Details and pricing upon request.
Feel free to request our printer profiles for soft-proofing.