When my Dad passed on at the very end of 1989 I inherited his Contax RTS with the 50 1.4 Planar and the 25 2.8 Distegon lenses. I fell in love with photography, the Camera and the lenses pretty quickly. I soon added the CZ 85 2.8 and as a backup, the Yashica FX 3 Super 2000. Once I moved to my current apartment I was able to afford more 2nd hand Zeiss and Kyocera equipment especially when I discovered that on line auction site. I am very comfortable with these Cameras and their great lenses -- I also like the fact that I can use Yashica lenses along with the Zeiss lenses and that some of the Yashica ML lenses are extremely fine. So now I use three Contaxes and 8 Zeiss Lenses along with one Yashica and 4 ML lenses including the 35 2.8 and the ML 100 3.5 macro which I think are hidden Gems of lenses. And as to Zooms, I find my CZVS 35-135 while heavy, to be one superb, and I do mean superb lens. It is as sharp as my primes.