The Contax Zeiss Distagon 25mm T* f2.8 lens is, in my opinion, the humble little brother of the infamous 28mm f2. This lens is solid. I love the color rendition on skin tones. There is a more muted sharpness, which pairs well with 1/8 or sometimes 1/4 black magic or black promist for more of a period piece look. Bare, these lenses don’t have too much ghosting or halo flaring like other vintage lenses. the Zeiss T* multi coating is magic. I know there is a huge desire for certain models, and you will hear MMJ or AEG or AEJ. I was way more into that when I built my set, but I am realizing more with vintage lenses, a lot depends on the lens you have in your hand. You can narrow down to the best models and serial numbers, but in the end, there are cherries and there are lemons. My CY Zeiss 135 2.8 is a lemon… Kinda. It has a strange chromatic aberration in the center of the lens. I may need to have it serviced and it will be fine, but you don’t know that until you purchase sometimes. Thats the risk with lens obsessions, you end up going through a bunch of duds. Or, you do what I did and passed up on a ton of Canon FD SSC in my past, and now it’s gold. Anyway, I am glad I took the risk on this lens, the 25 2.8 is a great addition to the kit.