The Contax system is where a modest budget buys real Zeiss optics, because the Soviet Union kept making them for forty years after the war. The entry and value picks are Soviet on purpose; the collector picks are the German originals. Mount compatibility across pre-war, post-war and Kiev bodies is not simple, and the family pages carry the details this guide only gestures at.
Stories · Buyer's guides · Contax rangefinder
Where to start with the Contax rangefinder
Soviet Sonnars for the price of a filter, the Stuttgart Contax that just works, and the black Contax I that started it.
Lenses
Entry level — the cheapest way in that is still the real thing
Jupiter-8 50mm f/2
The Sonnar 5cm f/2, built in Kyiv and Krasnogorsk on Zeiss tooling taken as reparations, in millions over forty years. Quality varies with the year and the factory; a good one gives the pre-war Zeiss look for a tenth of the pre-war Zeiss price.
Asking today: around $85 (middle half $60–$120) — median of 39 fixed-price USD listings on 2026-09-11
Also consider Sonnar 5cm f/2 .
Best value — the most lens or camera for the money
Jupiter-9 85mm f/2
The Sonnar 8.5cm f/2 formula in a Soviet barrel, the portrait lens of the Contax system at a fraction of the Zeiss original's price. Look for a clean aperture and smooth focus; the optics were rarely the problem.
Asking today: around $250 (middle half $210–$320) — median of 42 fixed-price USD listings on 2026-09-11
Also consider Sonnar 13.5cm f/4 .
Collector level — the one the reference books are about
Biogon 3.5cm f/2.8
Ludwig Bertele's 1936 wide-angle, the first of the Biogons and the lens that made the wide end of the Contax system worth having. Pre-war Jena and post-war Oberkochen versions differ in what bodies they fit, and the page spells out which goes on which.
Asking today: around $350 (middle half $310–$420) — median of 8 fixed-price USD listings on 2026-09-11
Also consider Sonnar 8.5cm f/2 .
Bodies
Entry level — the cheapest way in that is still the real thing
Kiev 4
The Contax II as built in Kyiv on Zeiss Ikon's machinery and to its drawings — the Kiev-4 from 1957, following the Kiev II of 1947, and made into the 1980s. A Kiev from the late 1950s or early 1960s is a Contax in all but name; later years are more variable.
Asking today: around $140 (middle half $85–$180) — median of 82 fixed-price USD listings on 2026-09-11
Also consider Kiev 4M .
Best value — the most lens or camera for the money
Contax IIa
Zeiss Ikon's post-war Contax from Stuttgart: smaller, lighter and more reliable than the pre-war body, with a shutter that repairers still understand. It takes the same lenses and asks less than a Leica IIIf.
Asking today: around $350 (middle half $220–$450) — median of 61 fixed-price USD listings on 2026-09-11
Also consider Contax IIIa .
Collector level — the one the reference books are about
Contax I
The black Contax of 1932, Zeiss Ikon's first answer to the Leica, revised half a dozen times in four years as its vertical metal shutter was tamed. The page sorts the versions; a working one is rare and a collector wants it working.
Asking today: around $980 (middle half $600–$1,100) — median of 28 fixed-price USD listings on 2026-09-11
Also consider Contax II .
The picks and the reasons are editorial and AI-written from the family pages, which say where each claim comes from. The prices are read from the listings I scan on the day the page was built — a median of a handful of asking prices, not a valuation, and not what anything sold for. Updated 2026-09-07.