chauncey wrote in post #18117710
I'm still pondering a Canon 5DsR, the 50 MP beast, in search of the ultimate IQ
from the camera.
Ultimate IQ? If that is truly what you are after, you would not be considering a Canon DSLR at all. Look at some medium format digital, or maybe someone makes an 8x10 digital. Larger sensors gather more light. Light is IQ.
I suspect you are NOT looking for ultimate IQ, but the best image quality you can afford. These most likely are two entirely different animals. For most of what most folks do with a DSLR, you'll never see the difference between an XSi and a kit lens and a 1DX with a 24-70 LII. Granted, there are exceptions. Two of the biggest exceptions are when you are REALLY pushing print size, and/or ISO. Anything less than 24"x36" and/or ISO 3200 is very unlikely to show up in prints from either system described above.
There are much better ways to improve your work than buying a high pickle-density camera. Have you mastered composition, lighting, subject choice, framing, lighting (natural and/or artificial), lens selection, exposure parameter selection, or any of the other things that go into making a photo worth looking at or sharing?
A 5DS(R) will cost you a lot of money, and do nothing to improve YOUR ability to make a nice photograph. Practicing with what you have, and trying new things (UWA/astro/sports/BIF...) is a lot of fun, and costs nothing. Chasing ultimate IQ is a unicorn hunt; you'll be buying every new doodad that comes down the pike. Improving your repertoire is real, fun, and attainable.
Don't buy a camera for IQ. There isn't a hill of beans difference between any two current bodies. Buy the features you need. Use them. Need 50MP? Buy a 5DS. Need 14fps? Buy a 1DX II. Need 1.6X reach in an inexpensive body? Buy a used T3i. Nobody will ever see the difference in your results.