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Minox LX
Subminiature espionage camera · 1978-2003

The Minox LX is a subminiature photo camera for 8 x 11 mm film, introduced in 1978 by Minox GmbH in Germany towards the end of the Cold War. It is fully electronically controlled and has a built-in Silicon Blue Cell (SBC) exposure meter, coupled to an electronic shutter mechanism. Like its predecessor, the Minox C, it is powered by a PX-27 battery, without which it can not be used.

Despite the more advanced electronics however, the LX is about 10 mm shorter than the Minox C making it even more suitable for espionage. With its outer dimensions of 110 x 27 x 15 mm it is still a lot bigger than the earlier subminiature cameras like the Riga, the Minox A and Minox B.

The image on the right shows a typical Minox LX. As with the other cameras, the speed dial and the focussing dial are on the top of the body. The exposure counter is visible through a small window close to the focussing dial. A dial for setting the film speed is available at the bottom.
  
Minox LX camera open

Unfortunately, the shutter release button is mounted in a different position than on earlier models, making the Minox LX unsuitable for some existing accessories, such as the Binocular Attachment. Special versions of these accessories are available for the Minox LX. As the LX is a fully electronic camera, the shutter can only be operated when a full PX-27 battery is present.

As the camera was produced in the 'electronics era', a number of indicator LEDs are present on the body. A slide switch, next to the speed dial, can be activated to read the current status of the battery and the exposure meter. The Minox LX was produced from 1978 to 1995 and a special version of it, the Minox TLX, was in production from 1996 to 2003, making it the longest lived Minox subminiature camera. In total, approx. 42,000 units were produced, which is a fairly small number compared to the Minox B of which 384,328 units were made between 1958 and 1972.

Storage box
Minox LX in storage box
Minox LX camera closed
Minox LX camera open
Grey filter in front of the lens
Controls
Bottom of the Minox LX, showing the film speed dial
The speed dial, the status switch and the LEDs
A
×
A
1 / 8
Storage box
A
2 / 8
Minox LX in storage box
A
3 / 8
Minox LX camera closed
A
4 / 8
Minox LX camera open
A
5 / 8
Grey filter in front of the lens
A
6 / 8
Controls
A
7 / 8
Bottom of the Minox LX, showing the film speed dial
A
8 / 8
The speed dial, the status switch and the LEDs

Operation
At the upper side of the camera are two dials. When holding the camera as indicated in the image below, the leftmost dial is used to set the shutter speed, between 1/30 and 1/2000 sec. Setting the dail to A enables automatic exposure by using the built-in light sensor.

The rightmost dial is the distance setting (focussing). The high-quality macro lens allows objects to be focussed as close as 20 cm. Like with the other Minox spy cameras, the viewfinder moves slightly when the speed dial is rotated, in order to compensate for parallax errors. This makes the camera ideally suited for document photography.

Click to see more

To the left of the speed dial is a slide switch that can be moved up and down. When released, it always returns to the centre position. This test-switch is used in combination with the three status LEDs at the left (green, red and yellow). Sliding the test-switch up activates the battery test. When the green LED is lit, the battery is OK.

Sliding the switch down activates the exposure test (exposure set to A). To avoid motion blur caused by slow shutter speeds, the yellow LED will be lit when shutter speeds below 1/30 sec. are to be used. It is advisable to use a tripod under these circumstances. At the same time, the red LED will warn for over-exposure caused by extremely bright ambient light. If the LED is lit, the grey filter should be placed before the lens.

Opening the camera
Opening the camera in order to replace the film cartridge is simple. First extend the camera in the usual manner, as if you want to take pictures. Then turn the camera around so that the bottom is up (1). Next, extend the camera a somewhat further until a recessed rig becomes visible (2). Use the nail of your thumb to press down the recessed rig (3). This should unlock the camera. Whilst pressing down the rig, slide away the body of the camera to reveal the film cartridge (4).

If a film is present, turn the camera upside down until the film cartridge falls out (5). Take a new film (6) from its protective container (7) and place it in the camera (8). Then close the camera. Note that the first image is lost as it is already exposed. Release the shutter and close/open the camera to advance to the next position. Then release the shutter again. The camera is now ready for taking pictures. In the images below, the camera is loaded with a 36 exposure colour film.

The bottom of the camera in normal position
1
Extending the camera a bit further reveals a recessed gap
2
Use the nail of your thumb to press down the recessed gap
3
Slide away the body of the camera to reveal the film cartridge
4
Take out the film cartridge by holding the camera upside-down
5
Close-up of the film cartridge
6
The film outside the camera, next to an empty film container
7
Placing a new film cartridge in the camera
8
B
×
B
1 / 8
The bottom of the camera in normal position
B
2 / 8
Extending the camera a bit further reveals a recessed gap
B
3 / 8
Use the nail of your thumb to press down the recessed gap
B
4 / 8
Slide away the body of the camera to reveal the film cartridge
B
5 / 8
Take out the film cartridge by holding the camera upside-down
B
6 / 8
Close-up of the film cartridge
B
7 / 8
The film outside the camera, next to an empty film container
B
8 / 8
Placing a new film cartridge in the camera

Black version of the Minox-LX
Some Minox cameras were produced in an alternative finish. This was generally done as a limited edition or for special OEM projects. One example is the rare black variant of the Minox LX shown here. As the camera is less shiny than the standard version, it's even more suitable for covert operations.

The one shown here has serial number 2502618, which means that it was part of the standard series, manufactuered in 1979 [1].
  
Black variant of the Minox LX

Serial numbers
Standard LX
  • 1978
    2500001 - 2501380
  • 1979
    2501381 - 2511354
  • 1980
    2511355 - 2520106
  • 1981
    2520107 - 2520524
  • 1982
    2520525 - 2520966
  • 1983
    2520967 - 2522465
  • 1984
    2522466 - 2523944
  • 1985
    2523945 - 2525721
  • 1986
    2525722 - 2527446
  • 1987
    2527447 - 2528314
  • 1988
    2528315 - 2530505
  • 1989
    2530506 - 2532569
  • 1990
    2532570 - 2534187
  • 1991
    2534188 - 2534787
  • 1992
    2534788 - ...
LX Gold
  • 1987
    001/999 - 999/999 1
LX Platin
  • 1990
    Pt001 - Pt1000 2
LX Sterling
  • 1991
    1-91 - 43-91
  • 1992
    1-92 - 75-92
  • 1993
    1-93 - ...
  1. In production until 1988.
  2. In production until 1991.

References
  1. Minox, Serienummern - 8 x 11 mm Kameras
    Minox website. Retrieved April 2010.
Further information
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© Crypto Museum. Created: Friday 30 April 2010. Last changed: Tuesday, 16 November 2021 - 08:03 CET.
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