uhoh7
Veteran
Let me follow up if I may with a query on Zeiss ZM vs. Leica lenses. One of the things that took into Zeiss lenses (Contax CY) was that in manual focusing, I found having the aperture ring close to the camera body and the wide (or long) barrell allocation to focus not only made focusing easy, but was easy to do without looking. First foray had gone to Olympus and the order on the barrel was the opposite with the aperture ring closest to the business end of the lens. For me, this meant that my fingers would fumble over the end and inevitably screw up the focus. So I'm wondering if I'm the only weirdo who finds this sort of ergonomics a thing, or not. And what's the order on Leica's lenses?
Focusing ease is basically case by case in my experience. A tabbed Leica lens like 28 cron is superior to any ZM I've seen and aperture is easier too. But the v4 cron without a tab is probably worse than ZM. The ZM 35/2 has a little bump in the helicoid, like a "soft tab" ZM 18 does not.
Zeiss does not make these lenses. Cosina does. Their CV 35/1.4 is tabbed and better than my ZM 35/2. But the big CV 35/1.2 and 50/1.1 are another design completely, as are the Summarit 75 and 90. At least the throws are similar. Leica makes more compact lenses in general, which is huge.
What I do see from the Zeiss Cosina lenses that is not present in CV is a consistent color profile. Slightly bluer than Leica. New leicas are a bit more saturated, older ones a bit less. CV are all over the map. CV 35/1.2 is weirdest color in any lens I own: but I use the lens often. Editing can be a struggle.
In the 1930s Zeiss had an entire system of great lenses, far ahead of Leica. In the 50s Nikkor outbuilt and out designed Zeiss and LIFE noticed. Canon also made very impressive lenses. In the 60s Mandler lead Leica into the sun with a whole series of great designs, many of which are still competitive today.
In the 70s-90s CY Zeiss, others will be better able to comment. Certainly the Leica R is most valuable SLR lens line today and there are a bunch of fantastic ones. I have CY 100300 zeiss, but seldom use it.
As a lens lover, I really have zero loyalty to names, but performance breeds respect. I'm able to disregard price, not in purchasing decsions, but in respect, which many seem not to able to do. They get mad about Leica price and dismiss the lenses at times. That is so silly. Get mad about price OK. But lens is lens. Judge by how it works.
You can't buy them all anyway 🙂

A7.mod w/ZM18 by unoh7, It's not small, it's not light.
Now CV makes some tiny ones, but they don't like digital as much... the wider ones. CV 35/2.5 is fine.
Yes this lens costs more than ZM18, it's stronger, smaller, lighter, and better built:

image by unoh7, on Flickr
In fact it's the best 21 ever made.
Zeiss also has their name on many expensive Sony FE lenses recently with sub-standard QC, and many are basically huge too boot. Otus perform real well, but they are so big and so heavy as to be essentially useless outside the studio or a confined event. I would never own any of them. And the Leica 50 APO beats them in a compact package at F/2. Zeiss cannot even spec a digital camera body. So I respect Leica more. But I believe in redemption 🙂 and admire many of the ZM lenses too. The ZM 35/1.4 is great, but too big. The ZM 35/2.8 is the most successful one. People are crazy about it. It's compact, has wonderful look, and is technically strong. Affordable also. 🙂
PS alejandro, I love those 21 shots. That ZM 21/2.8 is really great option, as you show. Very good for digital. 🙂
Basically the M/LTM world is full of so many great options, most of which are also so compact. So much history. It's a feast. 🙂

DSC06958 by unoh7, 1937 CZJ sonnar 5cm F/1.5
The real Zeiss 🙂
And how digital M respects it:

L1000561 by unoh7, on Flickr
There is the most influential Zeiss lens in history. Uncoated, and sharper today than when new in 1937, when Erich Salomon was the most famous photographer in the world 🙂
