Olympus OM Equipment for Close-up and Macro PhotographyPhoto EyepiecesIntroductionOlympus has made at least 4 ranges of photographic eyepieces, each suited to different types of objective.
Olympus P, FK and NFK Photo Eyepieces To use an Olympus OM camera body with a microscope, the Photomicro Adapter L is used, either directly or via one or more additional adapters. Any OM body can be attached, but for photomicrography the 1-12 focusing screen is almost essential, and so the fixed-screen bodies are not suitable. The top of the Adapter has the same fitting as the rear of a lens, and attaches to the camera body in the normal way. The bottom of the Adapter is intended to clamp on to the standard Olympus circular dovetail fitting for attaching cameras to microscopes. This dovetail fitting is found on some Olympus microscopes, on some Olympus photo tubes, and on the eyepiece adapters PE EyepiecesThis is the most recent range of photo eyepieces, designed for use with trinocular versions of Olympus compound microscopes that take the UIS series of infinity-corrected objectives (including the AX, BX2, CX2, IX2 and MX series), and with trinocular versions of the Olympus SZX7, SZX9 or SZX12 infinity-corrected stereo microscopes. These trinocular microscopes incorporate the Olympus circular dovetail for attaching a camera, and do not require an eyepiece adapter. The PE photo eyepieces are available with 2×, 2.5×, 3.3×, 4× and 5× magnifications; the 2.5× eyepiece is intended for use with 35 mm cameras.
For 35 mm film, the picture magnification on the film is determined by the formula PE eyepiece power × objective power. The large format camera backs include a relay lens, and the picture magnification on the film is determined by the formula 3 × PE eyepiece power × objective power.
NFK EyepiecesThese compensating photo eyepieces were designed for use with the long-barrel 45 mm parfocal objectives for Olympus trinocular compound microscopes such as the Vanox (AHB-LB) and BH-2, and with trinocular versions of the SZH, SZ4045, SZ6045 and SZ1145 stereo microscopes.
Olympus 2.5×, 3.3× and 6.7× NFK Photo Eyepieces They are also used with the earliest infinity-corrected objectives for industrial/metallurgical applications, prior to the UIS range. These eyepieces can also be used with older trinocular microscopes, with the aid of the PM-ADF Eyepiece Adapter.
The 2.5× eyepiece is intended for use with 35 mm cameras. The 3.3×, 5× and 6.7× eyepieces can also be used when higher magnification is required. The NFK 1.67× eyepiece is intended for use with cine and video cameras that use a C-mount, and does not cover the full frame of 35 mm film. For 35 mm film, the picture magnification on the film is determined by the formula NFK eyepiece power × objective power. The large format camera backs include a relay lens, and the picture magnification on the film is determined by the formula 3 × NF eyepiece power × objective power. Instruction bookletReproduced with permission from the copyright owner, Olympus Optical Co., Ltd
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FK EyepiecesThese compensating photo eyepieces were designed for use with the short-barrel 36.65 mm parfocal objectives for compound microscopes such as the Vanox (AH), BH and CH. The Vanox has a built-in eyepiece adapter, but other trinocular microscopes can use the PM-ADF Eyepiece Adapter.
Olympus 3.3× and 5× FK Photo Eyepieces The 2.5× eyepiece is intended for use with 35 mm cameras. The 3.3×, 5× and 6.7× eyepieces can also be used when higher magnification is required.
For 35 mm film, the picture magnification on the film is determined by the formula FK eyepiece power × objective power. The large format camera backs include a relay lens, and the picture magnification on the film is determined by the formula 3 × FK eyepiece power × objective power. Instruction bookletReproduced with permission from the copyright owner, Olympus Optical Co., Ltd
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P EyepiecesThese eyepieces are for use with the SZ-III-Tr and X-Tr trinocular stereo microscopes, and with other microscopes that have a vertical monocular tube. They are used with the the PM-ADP Eyepiece Adapter.
For 35 mm film, the picture magnification on the film is determined by the formula P eyepiece power × objective power × approximately 0.5. Instruction bookletReproduced with permission from the copyright owner, Olympus Optical Co., Ltd
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