Well i was after this lens when it was first announced and finally I was able to get one used from a forum member and I'm glad I did. So far I love it and I'll give you some reasons why.
One it is maybe the only lens yet to take full advantage of the 36mpx sensor I have and it does show.
Two I see no CA or any other lens issues with a fast lens that we usually see shooting wide open. My Sigma 35mm 1.4 is the only other lens close to this in this area but the Zeiss I am seeing nothing at all
Three its killer sharp wide open. Nuff said right there
Four the Bokeh is gorgeous
Five and not so sure this should be 5 but maybe number one. Its the only manual lens I have tried so far handheld or on a tripod that once I focus it than double check it in live view that I'm dead on the money manual focusing it even handheld. Let me repeat that given the shitty focusing screens for these AF cameras for manual focusing . I am nailing focus without being in live view to do it. Do I need to repeat that for the third time because this is unheard of. LOL
Okay lets get on with some images and let you folks decide. I just happen to have a very good Nikon 85mm 1.8 which BTW I think is sharper than the 1.4 version but thats a war for another day. My 85mm is very good and extremely good at 5.6 but at 1.8 like all fast glass the widest open aperture is never killer good and usually carries a lot of CA but the 85mm is good at F2 but as you will see the Zeiss 135mm F2 at wide open which folks this is unheard of is killer good wide open at F2 with no Ca , no purple fringing and is sharp as a laser. Frankly this is why buy this lens to be honest sharp results at F2 but it does have a small downside at F8 you can see diffraction start to creep in and the Nikon its at F11. I'm probably not going to show that against each other but you can see the Zeiss results.
One other caveat to this lens. Its big , its heavy , its manual focus and its butter smooth. Sounds perfect to me but for those sissy's that like AF well this lens ain't for you. ROTFLMAO
I'm joking of course but I started this journey 40 years ago and there was no such thing as AF so I'm entitled to give you a little rubbing. No question AF has its place and I use it as well, so please dont let me kid you too much I rely on it as well.