This, by far, the most expensive cine lens I have ever bought. Although still well below the market price, it still hurts the wallet.
Heavy, large but VERY easy to focus and change aperture. For a lens this large, the focusing action is very light and smooth. I just love the image quality this lens produces. Although it originally came with a c-mount lens, I have replaced the c-mount with a home-made M42 mount, so that I can use it on my full frame 5D.