Review I-26m-U 2,8 / 52

This review shows the I-26m-U 2,8 / 52 lens for enlargers with the logo of the Kharkov Machine-Building Plant 'FED' and the serial number 6823597.

I-26m-U 2,8 / 52

I-26m-U 2,8 / 52

In short

I-26m-U 2,8 / 52 (INDUSTRAR-26M-U F / 2.8 52 mm) - a lens for Soviet magnifiers. The lens does not have a focus ring, which makes it difficult to use as a photo lens. I-26m-U 2,8 / 52 can be easily turned into a macro lens, which, in fact, is interesting.

 I-26m-U 2,8 / 52 is a lens conversion Industar-26m 1: 2.8 F = 5cm P / I-26m 2,8 / 52 (or the like) for use in enlargers.

It differs from the hordes of other similar lenses of the I-50 / I-96 series for the I-26m-U 2,8 / 52 photo magnifiers in the housing, the relative aperture, and the 10-blade diaphragm, which closes to the minimum F / 16.

I-26m-U 2,8 / 52

I-26m-U 2,8 / 52

Main technical characteristics of I-26m-U 2,8 / 52:

Review Instance Name I-26m-U 2,8 / 52 6823597 with FED logo
Basic properties
  • И - shorthand for Иndustar
  • м - lens modification
  • У - lens for photoУmagnifiers.
  • M39 X 1 / 28.8 - common landing thread 'M39'
  • aperture control ring
  • enlightened optics
  • metal casecompact size
  • lack of a focus ring and a thread for filters
  • compact size, light weight, stylish zebra-type metal body
  • very low cost, availability in the secondary market
  • high-aperture lens
Front Filter Diameter the lens cannot use classic filters that are screwed into the thread near the front lens
Focal length 52 mm
Zoom ratio 1 x
Purpose For photo enlargers with negatives 24 X 36 mm
Number of aperture blades 10 petals, petals not blackened, shine in the sun. Form the correct round hole
Tags only a scale with aperture values ​​of F / 2.8, 4, 5.6, 8, 11, 16.
Diaphragm from F / 2.8 to F / 11. The iris control ring has fixed values, rotates with clicks.
MDF On Nikon SLR cameras with conventional adapters M42-Nikon F + M39-M42. is about 20 cm, while the magnification factor is 1:2.5 (measured).
The weight 70 g (approximately)
Optical design 4 elements in 3 groups, Industar / Tessar scheme.

Optical design Industar-26M-U

The lens does not use special optical elements in its optical design. The same optical scheme is used by many other lenses.

Lens hood The lens does not use a lens hood
Manufacturer country USSR, Kharkov Machine-Building Plant 'FED'
Period Unknown
Price About 2 US dollars per second-hand option.

Prices for modern macro lenses can see here.

I-26m-U 2,8 / 52

I-26m-U 2,8 / 52

Sample Photos

On camera Canon EOS Digital Rebel XSi (aka Canon EOS DIGITAL 450D, aka Canon EOS Kiss X2) I used a lens with two adapters: M42-Canon EOS + M39-M42.

On camera Nikon D90 I used a lens with two adapters: M42-Nikon F + M39-M42.

I-26m-U 2,8 / 52 does not have a focus ring. It is impossible to focus using this lens in the usual sense of the word. The lens is always focused on a certain distance. Focusing is very convenient when moving the camera to or from the subject. It is very convenient to use I-26m-U 2,8 / 52 s macro rings different thicknesses, which allows you to change the focusing distance and magnification.

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

Sample photo on I-26m-U 2,8 / 52 (Industar-26-M-U 52 mm F / 2.8))

You can download the source files in JPEG format. at this link (106 files in the '.JPG' format, 500 MB).

I-26m-U 2,8 / 52

I-26m-U 2,8 / 52

Use with modern cameras

Lenses with an M39 mounting thread (for enlargers, M39 X 1 / 28.8), such as the lens from this review, are very easy to use on modern cameras, just select correct adapter. On lens reflex cameras can only work in macro mode (shoot small objects with a short focusing distance). On mirrorless cameras, it will be possible to achieve focus on infinity. The cheapest adapters can be found aliexpress.com

For use on modern digital SLR cameras Canon EOS need M39-Canon EOS adapter, you can buy such an adapter (adapter) here. Also, an adapter M39-Canon EOS can be easily replaced with two adapters: M42-Canon EOS + M39-M42. In any case, the lens will always be focused at close distances.

An adapter is required for use on Nikon SLR cameras M39-Nikon F, you can buy such an adapter (adapter) without a lens and a chip here. Also, one adapter M39-Nikon F can be easily replaced with two adapters: M42-Nikon F + M39-M42. In any case, the lens will always be focused at close range.

For such a lens, I advise you to additionally buy macro rings with M42 thread, for example here.

How to use this lens with cameras of other systems (Pentax, Sony, Fujifilm, Olympus, Panasonic, Samsung, Sigma etc.) - ask in the comments and you will be prompted. If you have any questions on compatibility and adapters, ask in the comments (comments do not require any registration at all, any user can add a comment).

I-26m-U 2,8 / 52

I-26m-U 2,8 / 52

Other lenses from photo enlargers (U)

INUDSTAR (I):

  1. INDUSTRAR 22U-1 1: 3,5 F = 50mm П | LZOS | 8 petals
  2. I-22U 1: 3,5 F = 50mm П | KOMZ | 10 petals
  3. I23U 4,5 / 110 | LZOS | medium format | 6 petals
  4. I-26m-U 2,8 / 52 | FED | 10 petals
  5. I50U-3,5 / 50 | FOZ | 6 petals
  6. I50U 3,5 / 50 | LZOS | 6 petals
  7. I50U 3,5 / 50 | NGO 'Optics' | 6 petals
  8. I50U-1 3,5 / 50 | LZOS | 6 petals
  9. И50У-1 1:3,5 F=50мм П | LZOS | 8 petals
  10. INDUSTRAR-55U 140 / 4.5 | MMZ | medium format | 9 petals | reader review
  11. INDUSTRAR-58 3,5 / 75 | MMZ | medium format | 9 petals | reader review
  12. I-90U 4/75 | LZOS | medium format | 10 petals
  13. I96U-3.5 / 50 | FOZ | 6 petals
  14. I96U 3,5 / 50 H-22 | NGO 'Optics' | 6 petals
  15. I96U-H-22-3,5/50 | FOZ | 6 petals
  16. I96U-1 3,5 / 50 | FOZ | 6 petals
  17. I-100U 4/110 | LZOS | medium format | 10 petals | reader note

VEGA:

  1. VEGA-11U 2.8/50 | AOMZ | zebra | 12 petals
  2. VEGA-11U 2,8/50 | LZOS | black | 12 petals
  3. VEGA-11U 3/54 | MMZ | black | 12 petals
  4. VEGA-5U 4/105 | AOMZ | medium format | 6 petals
  5. VEGA-5U 4/105 | MMZ | medium format | 6 petals
  6. VEGA-22CA 5,6/103 | MMZ | medium format | 6 petals | reader's review

PZO WARSZAWA:

  1. Mikar / s 4,5 / 55 | PZO WARSZAWA | Made in Poland | 5 petals
  2. Emitar / s 4,5 / 80 | PZO WARSZAWA | Made in Poland | 5 petals
  3. Amar 4,5 / 105 | PZO WARSZAWA | Made in Poland | 6 petals

Plants:

  1. LZOS - Lytkarino Optical Glass Plant, Lytkarino
  2. KOMZ - Kazan Optical and Mechanical Plant, Kazan
  3. MMZ - Minsk Mechanical Plant named after S.I. Vavilova
  4. FOZ - Theodosia Optical Plant
  5. AOMZ - Azov Optical and Mechanical Plant, Azov
  6. NPO Optika - Optics Research and Production Association, Moscow
  7. FED - Kharkov Engineering Plant 'FED' (F. E. Dzerzhinsky)

The names of the lenses are clearly indicated according to the marks on the case.


Comments on this post do not require registration. Anyone can leave a comment. Lenses and promotions on them look at Moyo.ua.


Material prepared Arkady Shapoval. Training/Consultations | Youtube | Facebook | Instagram | Twitter | Telegram | Assistance of the Armed Forces

Add a comment:

 

 

Comments: 35, on the topic: Overview I-26m-U 2,8 / 52

  • Oleg

    Chic Macro

  • Ishtar nTr

    Normal lens, best among industrial babes

  • NE

    And the FED plant (now the FED corporation) is still alive, it turns out. As far as I understand, the truth has nothing to do with the photo anymore. The FED-micron is my first camera. I still remember how well it was made. Tore off the bunk cool. Then the truth is no one knew about the conic. A thing in one word. 72 frames on regular film. Excellent for a child. Only now I remember there was some trouble with the shutter cocking mechanism - my father periodically repaired it.

    • NE

      The cropped camera was also for the film :)

  • Andrei

    Yes, the macro is cool. Umatny cherries and bees

  • anonym

    How is it “NO FOCUS RING” ??? And the zebra-ring on the back of the lens, WHAT IS THIS ??? As far as I understand, this focus ring is! It has no distance scale engraved. But focusing is like with conventional lenses. I have a similar lens from a photomultiplier, only without the “U” index, but from a photomagnifier! Everything is focused for him. Only the engraving of the distance scale is missing ... Arkady, are you sure that the focusing ring on the Industar-26M-U lens is not turning? ? ?

    • Arkady Shapoval

      Less emotion. This is not a focus ring. It does not rotate (additional indirect confirmation is the absence of distance marking). I have a version of the 'U' for photo enlargers taken from the enlarger. Versions without 'U' are really very similar to this one in the review.

      • anonym

        Very strange ... Very. I have a lens for enlargers, without distance scales. There is nothing written on the side at all, no engravings. But everything revolves and focuses. Everything is like a regular lens. Yes, it is also in a bakelite container with a piece of paper pasted on which is written, “A photographic lens for the“ Industar-26M-U ”enlarger.” Your specimen is very unusual, as it has everything to spin, but you say that it does not spin! Straight some kind of ambush .... :-) Can you twist it harder and it will go by itself !? :-) :-) :-)

        (With great respect to your work.)

        • Arkady Shapoval

          I can send it to you, you will twist :)

          • Oleg

            I don’t know if it’s spinning or not, but this is your most original answer

            • Arkady Shapoval

              Yes it does not spin and does not rotate, a decorative ring :)

          • anonym

            :-) :-) :-) Sending will be more expensive than the lens itself, at times ... :-) :-) :-) The principle is interesting, due to which the mechanism is immobilized. Interesting and HOW it was done and WHY ??? After all, this is essentially a direct constructive deterioration ... And for what and for what purpose - it is not clear ... What is the advantage of stalling the helicoid? (Reflections do not lead to an understanding of this incident. Something like that.)

            • Rodion

              How - easy. It is done with one extra screw.

          • Victor

            ... I had one ... for a long time, in the 70s. Indeed, the ring is firmly planted there. At that time I used it on an enlarger ... But, as some write, I am not going to judge about its “universality”. At that time, my technical knowledge was not conducive to curiosity ... it is possible that there is a locking screw ...

        • Rodion

          Some I-26M-Us have a locked helicoid.

          • anonym

            How is this done and most importantly why? 8-(

            • Rodion

              Less caps and emoticons. And address the question to the labor commune, not to me. The fact remains - in the sources known to me, the I-26M-U was described as a lens without the possibility of focusing. It is logical - the lens does not need such an opportunity for a photographic enlarger. And even harmful.

              • anonym

                And I have Industar - 26M-U. Everything rotates like a regular lens. The condition is perfect, there are no traces of disassembly and interference at all. Therefore, the question actually appeared.

            • Victor

              Well, as it is not clear - the products of the plant are, if possible, unified. The same drawing, both produced on the same equipment ... less unnecessary operations. Remember Zadornov's old anecdote: - We even produced pasta with a diameter of 7 mm ...

  • Sven

    Arkady! Amazing photo!!! You are a master)

    • Arkady Shapoval

      There are 3 photos taken not by me, they are respectively signed in the bottom white line with EXIF ​​data.

      • anonym

        Well, the fact that you are given to “see” the picture is a fact. It rarely happens to anyone.

        Do not be arrogant! :-)
        Pasha!
        It turns out!

  • Victor

    Colleagues, don't fuss! FED-60 cameras were equipped with absolutely similar (externally) lens in the second half of the 2s. At one time, I put a similar lens on a photographic enlarger. And since the magnifier was frail, this lens did not impress with its results ...

  • Igor

    A typical normal lens of the time.

  • Vladimir

    I got a real pleasure from the pictures!
    Respect to the author!

  • Eugene

    Help me decide. I want to buy a lens on the Pentax K10. Is it possible to purchase Soviet optics and plant through adapters. Is there any possibility of autofocus in this case?

    • Rodion

      AF capability is not and never will be. You can use the M42 optics through the M42-PK adapter or whatever it is ...

  • Igors

    Can't you use fur instead of macro rings? Maybe it's easier to focus with them ...

    • Victor

      Why not? The bellows can be used, only they will take you to a different range of the focusing ruler ... and your lens will work at even shorter distances than a simple macro ring.

  • Alexander

    Here I came across an industrial 26m without y. And the focusing ring is also tight. As a result, I disassembled - nothing should be spinning there - there is no mechanism, just a one-piece aluminum blank. (Surprised - this is the first time such a copy). Who is interested I can send a photo.

    • Valery

      Yes, everything is spinning there. I took a lens from an old photographer. Two rings are crisscrossed, aperture and focus. focusing with a scale from 1m to 20 and then infinity. Moving the lens as you scroll is very noticeable. It went a bit tight, well, he didn’t even use the force too much. Just a long time ago.

  • xandrex

    Gentlemen, dispel all myths

    I disassembled the i-26mu and yes, it really does not focus. But this does not mean that there is no focusing mechanism in it. Its internal structure is absolutely identical to the usual industry, except that instead of the usual lubricant, the helicoid contains a composition resembling paraffin in consistency. It is almost impossible to turn the helicoid simply by hand. I grabbed two parts of the helicoid with pliers and managed to unscrew it. Next, using a lubricant solvent, I washed out all the remnants of this nasty lubricant and laid a new normal lubricant. It turned out to be a workable industry in the normal mode.

    Therefore, those who write here that their industrial focus is not lying, perhaps someone with remarkable strength turned and developed a mechanism.

    I also admit that there may be versions from a single piece of metal without a helicoid. But need photo proof

    • B. R. P.

      Lubricant has mutated into a different state of aggregation over more than half a century☻

    • Arkady Shapoval

      he doesn’t have a distance scale, what other proof do you need?

      • Rodion

        No, wait. I-26mU really come in different designs. Sometimes there is no helicoid as such at all - a smooth landing is fixed. Sometimes the helicoid is locked with a screw. Maybe there are other options. Accordingly, there may be no distance scale, although the lens can be focused if there is an “unlocked” helicoid.

Add a comment

Copyright © Radojuva.com. Blog author - Photographer in Kiev Arkady Shapoval. 2009-2022

English-version of this article https://radojuva.com/en/2017/06/obzor-i-26-mu-2-8-52/

Versión en español de este artículo https://radojuva.com/es/2017/06/obzor-i-26-mu-2-8-52/