Review of the TRIPLET Triple Project 2.8 / 78 (MMZ) diaprojection lens from a reader of Radozhiva

Review of the TRIPLET Triplet 2.8 / 78 lens specially for Radozhiva prepared Rodion Eshmakov.

TRIPLET Triplet 2.8 / 78 (MMZ)

TRIPLET Triplet 2.8 / 78 (MMZ)

Lens specifications:

Structure:  three lenses in three groups (Triplet Cook, a relative of the famous Meyer Trioplan scheme)
Format: medium (covers), APS (used)
Viewing angle: 53 degrees on the SF
Maximum Aperture: F / 2.8
Resolution: (center / edge) - 80/40 lines / mm (projection), 28/20 (photographic, in comparison with Industar-29 - just a little sharper in the center).
Features: does not have a focuser and aperture. It has many fellows from different factories in different frames, but the quality (resolution and drawing) floats.
Period: It was produced from the middle of the last century until the 1990s.

Appearance and ergonomics

Lenses of the Triplet family are the cheapest and simplest Soviet projection anastigmata. As a rule, they were widely used for the projection of filmstrips, in cheap cameras and movie cameras. The smallest triplets were in 8-16 mm movie cameras, and the largest in epidiascopes (365 / 3,65 mm). Depending on the manufacturer and year of manufacture, the frames could be metal or plastic, with or without threads for the projector, etc.

Our lens is a metal frame with focusing thread for installation in the projector socket and a metal lens block with a nameplate with a name. In this sample, the front lens is recessed into the body, which protects the lens from side light and improves contrast. This is a definite plus.

The lens does not have a focuser (focus ring) and aperture; it can be used by transferring it to the body Helios-44M or a similar lens: the frame is unscrewed, and the lens block is placed in the Helios body while maintaining the diaphragm. It is also desirable to disassemble the lens block and blacken the ends of the lenses and the inter-lens space.

A large rear segment allows you to use the lens with any camera.

Again, it is impossible not to mention that this lens is only suitable for those who like to experiment, for those who want to get an unusual glass in their arsenal. Well, let's see what to expect from him.

TRIPLET Triplet 2.8 / 78 (MMZ)

TRIPLET Triplet 2.8 / 78 (MMZ)

Image quality

Triplet 78 / 2.8 has a good ratio of aperture (very large for the Triplet Cook) and focal, allowing you to use it for portraiture.

The lens is categorically not recommended for those who like sharp pictures. The image obtained with its help is extremely soft, “luminous” (strong soft effect due to spherical aberration). On the edge, the resolution drops dramatically due to the coma inherent in the simplest optical schemes.

Depending on the manufacturer, the build quality, the lens can produce a different pattern (!) - from “bubbles” of a trioplane to something similar to a picture Industar-26M - with peas in bokeh. Obviously the scheme changed slightly during the production of lenses while maintaining the aperture and focal. I had three triplets 78 / 2.8 and each picture was quite different: in sharpness, contrast, bokeh.

The lens does not give a noticeable chromaticity, because it is masked by other distortions.

When installed in a chassis Helios-44M part of the rear lens is shielded by the Helios diaphragm even in the open position. Therefore, the bokeh of the lens is pretty tightly twisted. On full-frame cameras, slight vignetting is possible.

When aperture up to F / 8 (F / 5.6 on aperture scale Helios-44M) the lens acquires quite good sharpness. At f / 11 it's just a sharp lens. Those. aberrations in the lens are treated by diaphragm, which means that it has a plastic image.

Without blackening of the ends of the lenses and the inter-lens space, the contrast of the lens is weak, however, with a small finish, it is almost not inferior to most Soviet lenses.

It seems to me that such a lens can be used as fashionable soft lenses for portraiture and shooting outdoors. In its quality, it is no worse (and in sharpness even better) than the expensive advertised Meyer Trioplan. Personally, I really like the soft portraits shot with this lens.

Download source files in format JPEG can at this link (11 files in the '.JPG' format, 100 MB). All photos were shot on Canon 600D.


Overhead Projection Triplet 78 / 2.8 is a very cheap and interesting lens with an old and now rare scheme for those who are creative not only in the shooting process, but also in the process of creating their own photography tool. It has many congeners with the same characteristics in other frames, which may differ in quality and pattern. The lens can be used as a good soft-portrait lens with an unusual pattern; the main thing is to know that each aberration can be used to your advantage!

A list of all reviews from readers of Radozhiva will find here.

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Comments: 27, on the topic: Overview of the TRIPLET overhead projection Triplet 2.8 / 78 (MMZ) from the reader Radozhiva

  • Mad

    everything, the site was gone

    • Felix

      Why, on the contrary, I like this idea of ​​Arkady.

    • Rodion

      In my opinion, it will not be worse at all if instead of a review of the broken Triplet 78 / 2.8 there is a full review. In addition, people often resort to such homemade products, which means that they have the right to life.

  • anonym

    Well, that Triplets are ...
    People who have Zenith TELEZENITAR APO 135 / 2.8 - drag (send). There are no clear reviews on the net. And we will)

    • Rodion

      Somewhere there was a comparison with the T-11A and Ju-37A. Honestly, I was not impressed.

      • anonym

        Saw. Here:
        But this is a comparison, not a full review. And among these three, Zenith was the sharpest.

        • Rodion

          It seems to me that he is not only the sharpest, but also the most boring.

          • anonym

            Why so?

            • Rodion

              When aberrations are corrected very well, the picture becomes very poor.

    • Sergei

      I have a new one for Nikon. The sharpest I have, sharper than Nikon's fixes 85 1/4, 105 2/0 dc and a zoom 70-200 2.8 vr2 at 135 mm. Sharpness straight from 2.8, the eye does not change with cover, there are only minor chromatic aberrations up to 4,0. Tested on d810. I bought it on the KMZ website in the spring before the vacation to carry an unkillable TV set with me everywhere. BUT: it is better not to look inside - there are small metal shavings on the lenses, the tube shines inside. The metal ring behind which the aperture blades are located is so large that by itself it significantly limits light transmission. It's strange that such very good optics are packed in a piece of water pipe. The bayonet is one-piece, blackening is easily scratched, and why is it outside, but not inside the lens unit? Feeling unfinished. For newer multi-pixel cameras, this is probably the best choice among inexpensive and non-autofocus cameras, without considering the disadvantages described.

      • Sergei

        This is me about Zenit TELESENITAR APO 135 / 2.8, the commentary went down far from the question

        • Rodion

          The tendency is that we are good at making optics, but not packing it into a normal case.

  • KalekseyG

    redo conclusions, there was closed a spelling error radically changing meaning - "who is not"

  • KalekseyG

    rewrite conclusions, there was closed an error radically changing meaning - "who does not fit"

    • Rodion

      Really, a jamb. It needs to be fixed.

  • Vyacheslav

    In any case, interesting and informative. At the very hands will never reach, find, buy, adapt and even write a review. But I read, looked and made conclusions. And about ultramodern expensive lenses and reluctance to read, it’s still inaccessible to the amateur, and professionals even without reviews know what they need.

  • Ilyas

    I have a Zenith, 1.4 \ 85, can I gash a review about it?)

    • Andrei

      Ilyas, gash it of course! You yourself like glass?

      • anonym

        Saw immediately)

  • Michael

    For my taste, the picture is too soft and the bokeh is dirty. Strongly noticeable in photos 6, 7. But in general, for an amateur, it can even have its place.

  • Dmitriy

    I transplanted such a triplet into an autofocus body and equipped it with a diaphragm located in front. I placed a light trap with a hole area equal to the matrix area on the back lens. it turned out somehow

  • flat

    Arkady a little puffed up, the photo is a bit of the wrong lens. Radion shot on Triplet DM-3 78 mm f / 2.8

    • Rodion

      Rodion shot 78 / 2,8 triplet, I just accidentally uploaded the DM-3 to the Lens Club of the photo.

  • flat

    Or vice versa, Arkady cheated on us. )))

    • Arkady Shapoval

      Rodion is responsible for the accuracy himself.

  • flat

    that the review was not published.

    here is his photo

    let everyone be alright

  • Rodion

    This lens is looking for a new owner. Write

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