Originally posted by Ed Hurst Actually on this specific point, I may have a different preference from yours. I love to make huge prints and take them in from the viewing distance that large prints require. But, once I have absorbed the overall impact, I love to walk close to the print and study/enjoy details; I will often walk around the picture doing that, returning to the wider view then going close again for more detail. By doing that, I feel I in habit the scene. So for that reason, I want to achieve images that will print large but retain loads of detail close up as well. Unless it's an impressionistic sort of shot of course...
That's actually a way of interacting i can relate to.
I'd be really interested to see a blind study that determined what type of resolution is required to satisfy such a person.
There simply is no definitive information on how much is enough. Personally I'm convinced you even for such a person, 200 DPI expanded to 300 or 360 DPI depending on the printer would be enough for even the pickiest person. I'm waiting to see som kind of definitive work that says I would need more.