Manual Gems...what non Micro 4/3 lenses do you like using?

I prefer manual to auto-focus lenses and have quite a few. My native M4/3 manual lenses are the Voigtländer Nokton 25mm f0.95 and SLR Magic Hyperprime CINE 12mm T1.6.

I have kind of a thing for Voigtländer and Nikon AI-S lenses. I just love the way they work and feel along with excellent color and image quality. I swap out different lenses depending on what I'm shooting.

My favorite non-native manual lenses are:

Nikon 20mm f2.8 AI-S

Voigtländer Nokton Classic 35mm f1.4 (Leica M mount)

Pentax 50mm f1.4 SMC Takumar

Voigtländer 75mm f2.5 Color Heliar (Leica L39 screwmount) - I *LOVE* this lens!

Nikon 105mm f2.8 AI-S macro