Hello. I just joined this web page forum yesterday. This past weekend, I came across 167mt & 50mm 1.7 mm lens (all like new in there boxes with papers). This is my first Contax. I have forever dreamed of being able to use Zeiss lenses (I am a Nikon F100 user also). I know I will enjoy this new toy. My question is this. I have the funds to pick up either a Zeiss 28mm 2.8 mm or a Zeiss 135mm 2.8 mm. Both are in very nice shape and about the same price. Based strictly on lens performance ( focal lenght is not a concern as I can always use my Nikon for any shot the other focal lenght would be need for) which one would you choose? Thanks in advance for your responses on your time!