Trinocular head

Please see here for the general flow of microscopic photography.

  The trinocular head has a camera port for taking a photo. Fort taking photo relay lens must be set in the trinocular head and attaching the camera to the camera port using microscope camera adapter.

  The field number (FN) is one of the microscope features. The FN is the diameter of a field of view. The larger FN brings a large field of view. For microscopic photography, FN is not so important because the shooting area is a part of the field of view.

There are two kinds of camera port one is port with a diameter 23.2 mm tube made for classical microscopes and the other is made for a recent microscope for each microscope makers.


These are trinocular heads that can be used with Olympus CH-2 and BH-2.
There are different in FN, the left is high FN model.
The shape of the camera port is the same.
The relay lens corresponds to Olympus FK and NFK.
Relay lens Olympus PE cannot be used.

Trinocular head for Olympus BX series and current model.
Use with the camera port adapter Olympus U-SPT.
The relay lens corresponds to Olympus PE.
Relay lens Olympus FK and NFK cannot be used.


Old Nikon trinocular head with a diameter of 23.2 mm camera port.
This is an old Nikon trinocular head for Nikon S type microscope etc.
The relay lens corresponds to Olympus FK and NFK.

Old Olympus trinocular head with a diameter of 23.2 mm camera port.
This is an old Olympus trinocular head for Olympus E microscope, CK etc.
The relay lens corresponds to Olympus FK and NFK.

AmScope trinocular head with a diameter of 23.2 mm camera port.
This is a trinocular head of stereomicroscope of AmScope.
The relay lens corresponds to Olympus FK and NFK.


This is a trinocular head for Nikon OptiPhot.
The shape of the camera port may be the same as the current model.
The relay lens corresponds to that of Nikon.


This is trinocular head of Zeiss AxioSkop.
The relay lens corresponds to that of Zeiss and Olympus FK and NFK using an adapter.

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