LOMO 140-200mm microscope photo tube 23,2mm | projection eyepiece and camera adapter Carl Zeiss Jena - photo gallery

This is description of this part:

LOMO 140 - 200 mm photo tube / camera adapter with adjustable length - but also fitting many other microscopes from Carl Zeiss Jena, Meopta, Olympus, IOR and others.

The tube allows a camera or a camera body to be attached to a trinocular head or directly to the microscope body, even when there is no trinocular head.

Basic technical parameters of this tube:
Manufacturer: LOMO (ЛОМО)
Colour: black, rings and barrel chrome-plated
Tilt angle: none, this is a straight tube
Internal optics: none - not even a deflecting prism
Mounting to the trinocular head or microscope body: ring dovetail (male part)
Dovetail diameter: 41 mm
Type of connection at the output: empty tube / barrel
Tube diameter at the output: 23.2 mm internal diameter
Length of the barrel / tube: variable
Length adjustment: yes - the barrel is extendable, with a scale from 140 to 200 mm and a knurled locking ring

This is the version with adjustable tube length. A scale from 140 to 200 mm is engraved on the extendable barrel, with a reference line and intermediate divisions, and the setting is locked with a knurled ring. This gives two things at once. First, a continuous change of the image scale - the longer the tube, the larger the image falling on the sensor or the film, so the framing can be adjusted without changing the objective. Second, and more importantly, the ability to work with objectives computed for different optical tube lengths: 160, 170, 180, 190 and 200 mm. Carl Zeiss Jena and LOMO objectives are computed for 160 mm, Leitz Wetzlar for 170 mm, some objectives of metallurgical and measuring microscopes for 190 or 200 mm - here you simply set the barrel to the right value and the objective works under its design conditions, instead of delivering an image with residual aberration.

Since the adapter has an empty barrel with an internal diameter of 23.2 mm on the output side, a projection eyepiece of that diameter can be placed in it, or a so-called "USB eyepiece", that is a digital microscope camera. Adapters between the 23.2 mm barrel and the M42 thread are also widely available, and from the M42 thread you can move on to any other mount: Nikon, Canon, Sony and others.

Such a tube can be mounted directly on the microscope body instead of the head. A dovetail seat with a diameter of 41.0 - 41.5 mm is found, among others, on the microscopes:
- LOMO
- Carl Zeiss Jena
- Meopta
- IOR
- Reichert Biopan
- Olympus CH

It is also often used in microscopes with a slightly larger seat, among others Zeiss West Germany, Leitz Wetzlar, PZO, Will Wetzlar, Hund Wetzlar.

The "compatibility" section gives an example list of microscopes this tube fits, although it is not a complete list.

The last photo shows a LOMO Erudit microscope with this photo tube and a projection eyepiece mounted. It is an example of use.

What is this part needed for?

• if you need a tube that allows a camera or a camera body to be attached to a trinocular head
• if you need to attach a camera or a camera body directly to the microscope body, because you have no trinocular head or want to photograph without splitting the light
• if you have objectives computed for a different tube length than your microscope - 170 mm from Leitz, 190 or 200 mm from a metallurgical microscope - and want to finally use them under their own conditions
• if you want to change the framing and the image scale without changing the objective and without swapping the projection eyepiece
• if you want to choose the magnification so that the image fills the camera sensor and the dark corners disappear
• if your old photo tube has been lost, sold separately or has a damaged connection

What category does this part belong to?

Adapters [ link ] [More Adapters]

Who manufactures this part?

• Lomo - Leningrad Optical Mechanical Association [ link ] [More Lomo]
• LZOS
• TOMP
• WTOMP
• WOOMP
• GOMZ
• LOOMP
• Progres
• Progress

What microscope does this part come from?

Mikroskop Lomo MIN-8 [ link ] [More from MIN-8]

What microscopes or components is this part compatible with?

• Lomo MIN-8
• Lomo MBB-1
• Lomo M-9
• Lomo MBI-1
• Lomo MIN-5
• Lomo MIN-4
• Carl Zeiss Jena Lg
• Carl Zeiss Jena Lr
• Carl Zeiss Jena Lu
• Carl Zeiss Jena Lumipan
• Carl Zeiss Jena Nf
• Carl Zeiss Jena NfPk
• Carl Zeiss Jena Ng
• Carl Zeiss Jena NU
• Carl Zeiss Jena NU-2
• Carl Zeiss Jena Eduval
• Carl Zeiss Jena Eduval-4
• Carl Zeiss Jena Laboval
• Carl Zeiss Jena Laboval-2
• Carl Zeiss Jena Laboval-4
• Lomo TRN-1
• Lomo TRH-1
• Lomo HU-POL
• Carl Zeiss Jena Neophot 21
• Lomo MMU-3
• Carl Zeiss Jena Jenamed
• Carl Zeiss Jena Jenalab
• Carl Zeiss Jena Jenaval
• Carl Zeiss Jena Jenalumar
• Carl Zeiss Jena BK 70x50
• Carl Zeiss Jena Amplival
• Carl Zeiss Jena Ergaval
• Carl Zeiss Jena Docuval
• Carl Zeiss Jena Vertival
• Carl Zeiss Jena Epival
• Carl Zeiss Jena Metaval
• Carl Zeiss Jena Fluoval
• Carl Zeiss Jena Epityp-2
• Carl Zeiss Jena Epignost
• Carl Zeiss Jena Jenatech
• Carl Zeiss Jena Pictoval
• Carl Zeiss Jena Telaval
• Carl Zeiss Jena Jenavert
• Carl Zeiss Jena Jenapol
• Carl Zeiss Jena Trinocular Head for Microval- microscopes
• Olympus CK2
• Olympus BHA
• Olympus CH
• Olympus CH-2 CHT
• Olympus CH-2 CHS
• Lomo Biolam
• Lomo Biolam-I
• Lomo MBI-15
• Lomo MICMED-2
• Lomo MBI-11
• Lomo Biolam-M
• Lomo Metam
• Lomo Biolam
• Lomo Polam R-113
• Lomo Polam L-211
• Lomo Polam LMPR
• Lomo Polam R-311
• Lomo Biolam D11
• Lomo Polam L-213
• Lomo Erudit
• Lomo Biolam 70
• Lomo ML-2
• Meopta DD 37 BN
• Reichert Biopan

Names, descriptions, terms, and search contexts under which this part is searched.

• Lomo MIN-8 microscope repair parts
• Carl Zeiss Jena Nf Fototubus 41 mm
• Jenamed Jenapol photo tube 23.2 mm adapter
• LOMO Polam Fototubus ersetzen
• Olympus CH Meopta IOR phototube
• Reichert Biopan photo tube
• Mikroval Fotoansatz
• fototubus na mikroskop a Zeiss Jena
• tubo fotografico microscopio PZO Biolar
• adattatore fotocamera microscopio Zeiss Jena
• tubo fotográfico microscopio Lomo Biolam
• adaptador de cámara microscopio PZO Biolar
• tubus fotograficzny mikroskopowy Zeiss Jena
• Lomo buy spare parts