Upsizing a Nikon D2X NEF; billboard, posters, high res art prints, what resolutions are required ?

I'm really interested to learn the workflow required to get the largest and highest quality DPI prints from a Nikon D2X NEF.

These 2 goals are different in that a billboard prints needs a lower DPI than an Art Magazine. But the both have several things in common, (1) the underlying starting point is a D2X NEF, (2) they can both make you money, i.e. these are essential commercial workflows.

The published work I've done so far was only for a small magazine and newsletter, but I want to change that!

This blog entry will be updated with info and links as I find out more of the secrets of the big picture / fine art post processing.

Links so far

1. Dan Heller does a great job explaining things.
2. Here's one link from Nikonians which states, "Genuine Fractal is capable to upsize image up to 600%. PS7 bicubic is good for 200%. together they can produce 1200%."
3. Martin Turner clarifies the issue of billboard DPI in this Nikonian post (Thank You). He explains that UK billboard work requires 14MP and upsizing is therefore not an issue for the kind of billboard layouts they do. Please see the thread.
   Mr. Turner has provided additional details and insights on on this post
4. Here's a good Nikonian thread on Image Size for print sizes.
5. RIPs
   • PrePressure's What is a RIP and how does it work?
   • Nikonian thread on RIP Software.
   • Nikonian thread on ImagePrint RIP Review.
6. Printer Info
   • Good Nikoian thread on Fuji Pictography 3000
   • Epson pro 4800 VS pro 4800 Professional edition
   • Epson Net 10/100Base-TX Type B Internal Ethernet Print Server from Adorama

Some questions:

1. Q: What is the best practice for getting to an 200% upsize? A: ?
2. Q: What are the practical limits of upsizing a D2X NEF, how big can you go? A:
   1. Martin Turner provides some valuable insights on upsizing this Nikonian post.
   2. Here's a good Nikonian thread on Image Size for print sizes.
3. Q: What resolution and DPI does a high fashion or art magazine typically require? A: ?
4. Q: What workflows are required to get a NEF to a billboard? A: "The screen is usually 15 dpi, for which you need 30 ppi, or, more usually, design the board at 10% size with all pictures 300 dpi." - Martin Turner at Nikonians Mr. Turner has provided additional details and insights on on this post

Nikon D2X Resolution to DPI Chart

Larger Chart

More to come...