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Installation to Trinocular Photo Port

How to identify the microscope photo-port type before selecting an adapter path

Trinocular photo-port installation depends on the microscope-side camera path. The most important points are the actual port shape, the phototube type, the required sleeve or adapter, and whether the optical path is suitable for DSLR or mirrorless camera imaging.

Select the photo-port type that best matches your microscope. If the port is not clear, please check the physical tube, existing C-mount adapter, phototube markings and insertion diameter before final adapter selection.

Trinocular Port Phototube Type JIS / Olympus / Nikon Direct C-Mount

Select Your Trinocular Photo-Port Type

A trinocular microscope may use several different camera-port structures. The following examples help identify the likely adapter path before checking detailed mechanical compatibility.

C-Mount Path

C-mount microscope photo port adapter path View C-Mount

Olympus U-SPT Type

Olympus U-SPT type microscope phototube adapter path View U-SPT

Olympus BH Type

Olympus old BH type microscope phototube adapter path View BH Type

JIS Phototube

JIS standard microscope phototube adapter path View JIS Type

Nikon F-Type Phototube

Nikon old F-type microscope phototube adapter path View Nikon Type

No Phototube Attached

Microscope trinocular port with no phototube attached View No Tube
Compatibility rule: Please confirm the actual photo-port structure. A similar-looking trinocular port may still require a different sleeve, intermediate adapter or optical path.

Olympus U-SPT Type Phototube Installation

Olympus U-SPT type phototube connections require the appropriate microscope-side sleeve.

Olympus U-SPT type phototube installation guide for DSLR microscope adapter

Olympus Old BH Type Phototube Installation

Some older Olympus BH series and related microscope systems use a legacy phototube shape. The connection may require a dedicated sleeve.

Olympus old BH type phototube installation guide for DSLR microscope adapter

JIS Standard Phototube Installation

A JIS standard phototube is typically based on a 23.2 mm inner-diameter tube path.
Confirm that the tube is straight, mechanically stable and suitable for microscope adapter.

JIS standard phototube installation guide for DSLR microscope adapter

Nikon F-Type Phototube Installation

Nikon microscopes, including systems such as Optiphot-era configurations, may use an
F-type phototube path.Nikon older F-type phototube installation guide for DSLR microscope adapter

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