My camera is an A7Rii, and I have the Batis 25 and the Sony Sonnar 55/1.8 which are my 2 go-to lenses -- the sharp, crisp, vibrantly colored images of both those lenses are wonderful. I've never been a zoom lens person, preferring the IQ of the 2 primes I have. But this zoom has captured my attention, and would be a useful lens to have. However -- my key question: ow does the IQ of this GM lens compare to Batis 25 and the Sony Sonnar 55/1.8 (I know the focal length of the 55 is not in the range of the 16-35-- but just in terms of IQ). Thank you.