Asher Kelman said:
What kind of printing was that and what is the life expectancy ib the way it is displayed or could be displayed if it was to be kept as art?
Thanks again Asher
it is not easy to answer precisely to your question, it all depends of size and technic used for printing...
In that case the job was done just before summer.
- I've started to work the Raw files in C1, with little sharpening and 125% size exported to 16bit Argb tif.
- Open file in PS, go to definitive size and do some work for color using a lot of layers. I remember that at one moment one of the file was close to 2 Gb... I sometimes had to wait long seconds (even minutes) that the bi-pro G5 do its work.
- Sharpening at the very end...
- convert to adequate CMYK space
- downsize to 8 bit file and burn CD
- send VD with calibrated color proof print.
2 important things to know before starting the job:
- what size the print will be
- How and on what kind of material it will be printed
Receipies are different upon the answers, some printers need 125 dpi, some 25...
Some printers have better resizing in rip some not.
Generally speaking, for a Lambda print (not the case of the Salon de Paris job) best is 200 dpi, but if the print is large and id you start from a 10Mpix pic, upsize to 125 dpi max, the rip will do the rest of the job.
The ink coverage (amount of ink needed for the printing of colors, though 400% in cmyk is the max [100% per color] it must NEVER be that much, currently you must stay between 280 to 320%)
is very important and depending of the paper/canvas - kind of printing you must adjust (tricky!)
The best of course is to get in touch with the printer's prepress people...
In the case of the prints for the Salon de Paris we did not have the possibility to talk to the different printers, so we send cmyk and Argb files together, in case they would prefer to use one or the other.
We ALWAYS embed profile so they're known by people using the files. They have the proof to see if it corresponds to what they see on screen.
Hope this help