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Veteran
the Planar 85 f1.4 is quite a lens.

The OP already has the 50mm f1.4, but the 50mm f1.7 is really no slouch. I was surprised by how good it is and how nicely it fits with the Aria. The only problem I have at the moment is that the prices for the CZ lenses are a bit high, so apart from the 50mm I'm mostly using Yashica or Adaptall-2 lenses with mine.
Going through this thread again reminded me that no one has mentioned the excellent Zeiss 35mm 2.8 PC shift lens or the Zeiss 100-300mm Vario-Sonnar f4.5-5.6 zoom.
I'll pile on here w/ a question: What's the general difference in the 50/1.4 and the 50/1.7? I've heard some mixed things, but one that stuck w/ me is that the 50/1.4 can be better than the 1.7... if you get a good copy. The 1.7 apparently is more consistent. That might just be the internet talking...
I have the 1.7, but haven't used it too much. I just got it for a good price... but am busy w/ other gear.