There is no ZE version of this lens yet, although there is a possibility that Zeiss will launch one at Photokina 2010. Regardless of that, it remains one of the most popular Zeiss lenses ever made and they are quite popular adapted for Canon. On other boards, such as FM, there are long sample threads with images exclusively from this lens, so this thread is an attempt to remedy the situation here at POTN.
The Distagon 1.4/35 was introduced in the late 1960's and has gone through a number of revisions. The two most popular versions are available in Rollei and Contax mount. There are two important differences between them. One is that the Rollei version has three aperture blades, creating a unique triangular bokeh when stopped down. The Contax version has a more traditional 8 aperture blades. The second difference is that the Rollei version has HFT coating while the Contax version has T* coating. This has some impact when it comes to flare resistance but also influences the general color cast.
This lens should not be confused with the more recent 2/35 Distagon design - they are quite different in rendering style. Unlike the two fast f/1.4 lenses in the ZE lineup (The 50/1.4 Planar and the 85/1.4 Planar) the 35/1.4 Distagon has a floating element resulting in good performance up close. It has better center sharpness than for instance the 35L while it is comparable or slightly weaker in the corners (depending on version). It is not as sharp as the 2/35 until both are stopped down to about f/5.6.
I got this lens two days ago, so I am by no means an expert in using it, but I will post some of my early shots anyway.