>I found the spreadsheet useful and I'm pleased that time was >taken to produce it! Good Work! I don't understand, however, >why it's necessary to obtain a NEF plus a jpeg of the same >image when one could always take the raw image and turn it (or >a copy) into a jpeg.
Your question probably deserves it's own thread. Briefly, many photographers like the ability to have a "quick and dirty" version of their images, perhaps for loading up onto a website for them or their customers to view, while still having the RAW version available when they need to do any significant post-processing.