Since getting my X-T10, 16-50, and 27 f2.8, and reviewing the great imaging from this rig, I feel the need to take a step upward to see if I.Q. can be "better". I'm happy with the lens' rendering and don't think the higher $$$$$ of 'pro' lenses is worth it. Just not THAT seriously into it. Hopefully one of the new bodies will offer the features and 'improved' I.Q. that I'm searching for. Maybe I should just leave "well enough" alone as just have fun with what I have now.