Brikwall wrote in post #9519935
Personal preference does, of course, include whatever industry standards and client demands that must also be met.
Just out of curiousity, what are you referring to when you say "professional printing standards?" What type of product/market or you designing for? And are you referring to "in general" or "ideal" situations when you say that 10.1MP without noise printing at 11x14 is "totally unacceptable."
I'm not trying to argue or to discount what you've written - I'm neither a designer nor do I work in the printing industry. However, I do find a blanket statement that
"10.1MP without noise at all printing @ 11x14, is certain totally unacceptable by professional printing standards" to be a bit of a stretch. I think "less than ideal" might be more realistic.
Meaning simple, if I were to put that in any print product, by product I mean
commercial product that sells by mass, not a family coffee table book, it would be
required to 300dpi, that is simply the minimum you would print at for any commercial
product. Industry standard you can call it. Of course it doesn't entitle things like large
posters, since those aren't meant to be viewed up close.
Good examples would be books, magazines, packaging, etc.
Printing 11x14 @ 300dpi would then require close to 14MP, before trimming, if you were
to use an original image smaller than that, you would have to interpolate it. Interpolation
is really something to be avoided, and only done when there is absolutely no other choice.
Even the best interpolation can be caught by a good eye.
Anyways, personal preference is for personal work. Commercial work needs to follow
the technical specs of the client and most importantly the printer. Even smaller non-press
printers who print for individuals have 300dpi requirements, just because at 300dpi,
the human eye cannot see any image imperfections.
By general I mean print in general, it is a standard and requirement, only if there's
no other choice you would go with a smaller image and interpolate, but that only happens
in newspapers. Magazine and books have choices since the deadline isn't the next day,
they'll just choose another photo.