The Hungarian Gamma Duflex-an interesting piece of SLR camera history


The interweb is a wonderful thing, not least because people are so generous with their time and knowledge. Until now I always thought the Germans made the first proper SLRs in the pre-war years (the Praktiflex and Kine Exakta) but that it was the Japanese who pioneered the instant return mirror that created the analogue SLR as we know it today. It turns out that’s not quite true. This article:

Credits: alex34

tells the story of the Hungarian Gamma Duflex, the first SLR in the world with an instant return mirror, which appeared in 1948/49. Only 550 were ever made, it appears to have been shut down so as not to compete with the Soviet and East German camera industry (allegedly). This makes it incredibly rare, so not likely to turn up on Lomography!

Credits: alex34

Though it looks like a rangefinder, the two viewfinder windows are actually for framing different lens lengths-this is a true SLR, with the image always in view as we are used to it today. I think it’s striking that a first attempt at solving the problem of the instant return mirror should also appear to have produced such an elegant, neat, and well thought-through design. As the article states, ending production of this design in some ways actually set European camera design back, and paved the way for the rise of eventual Japanese supremacy via the Asahi Pentax, Nikon, Olympus etc…

written by alex34 on 2014-05-12


  1. neanderthalis
    neanderthalis ·

    It makes one wonder what would have happened if they had decided to stay in the competition. This was an interesting article.

  2. mapix
    mapix ·

    unbelievable its a real slr. But the mirror finder schematics shows it indeed - thanks for the article!

  3. katebush
    katebush ·

    Any idea where to sell an original Duflex at the best price? Thanks

  4. alex34
    alex34 ·

    @katebush Sorry, no. They're incredibly rare and there's a lot of con-artists out there.