Today went back to my yearly client shooting a clothing catalog that I normally shoot all models full length as they like a little elbow room. Today once again I walked in looked up on the wall above my seamless and bam. A 6 foot square banner of two models put together in a composite from two images but from the waist up. Now do the math a full frame image on a 36mpx but basically in half at the waist is 18mpx each than send that up to 6 foot square. It's the reason I try and get the biggest MPX cam I can get my hands on. Okay I understand its client work and most of us don't run into clients playing around with your files but its a classic case you just don't know what your images will become. I have been burned by this before and I looked like the idiot when a image did not hold up. I realized than about 4 years ago never ever again. Anyway the banner did look really good. Good news is they print those at low DPI but still you just never know what pops up. YMMV
Oh it was from a D800e and held up nicely.