Nikon F and F2 Microscope Adapters


The British Journal of Photography sums it up best:

The Nikon equipment for photomicrography confirms the impression of professionalism given by the rest of the range. The writer [Geoffrey Crawley] used to have a snap method of judgement for restaurants -- this was simply to order a Welsh rarebit. If one had to make a snap judgement on a camera system, the simplest way would be to look at its microscope equipment. This will not tell you whether it makes a good press and reportage camera, but it will indicate to what extent the camera is a fully professional and scientific tool. This photomicrography equipment is a case in point.


Microscope Adapter Tube

Nikon Description:
This simple device fits over any standard microscope eyepiece and utilizes the shutter and viewing system of a Nikon or Nikkormat camera for low power photomicrography. With [this tube], even amateur photographers who own a microscope can take photomicrographs for study or pleasure.

This adapter comes equipped with three filters (yellow, green, and red) and a Type C screen, all neatly packed into a leather case. Thoughtfully, Nikon has included a field lens that projects approximately the center half of the screen across the entire 24 x 36mm format. The tube comes in two pieces; one has a collar on one end, which slips over the microscope eyepiece and has a milled screw to tighten it into place. The other piece, which screws onto the eyepiece collar-end, has a standard male F-bayonet mount.

Microscope-Camera Adapter Model 2

Apparently, this is the same as the previous model (simple optics, using the microscope eyepiece) with some refinements.


In general, all Microflex *FM units:


Microflex (FMF)

Nikon Description:
The Microflex is used to attach a Nikon or Nikkormat to any standard microscope eyepiece tube for high-quality 35mm photographs of microscopic images. It has its own built-in leaf shutter and X-synchronization contact.

Speeds:
1-1/250 sec., B, T (manual)

The Microflex units all feature a built-in rotary leaf shutter to minimize vibration effects while taking pictures. The mirror flopping up and down, not to mention the shutter slamming across the film plane in a standard camera, provides a significant obstacle to critical sharpness at high magnifications. In addition, since the whole setup of microscope + adapter makes it generally inconvient to view through the camera's viewing system, Nikon has provided two different right-angle finders for easier viewing, with the image relayed by a moveable prism. Like the previous adapter tubes, the body of the Microflex incorporates a field lens to project the center portion of the eyepiece's image across the entire 24 x 36mm film frame. Shutter speeds are selected like most leaf shutters, via a rotary control around the Microflex's body.

The actual optical path has the image exit the microscope eyepiece, project through the field lens, and reflect from the prism to one of the two side-mounted finders. The viewing screen adapter is inteded for use with 10x or less objective lenses. It has a 62.5mm (2.5 in.) diameter ground-glass screen, with 24 x 36mm frame lines and a cross etched onto its center. Much like a large-format camera, you may manually check the focus with the provided 7x magnifier. The other finder is a magnifying eyepiece intended for higher-magnification work; the view is similar to that of the previous finder, with the standard frame and cross visible. You must first focus on the cross using the eyepiece's controls, and then you may focus the microscope image as desired.

When taking a picture, a cable release is used to depress a plunger. The release actually moves the prism out of the way first, then it opens the shutter for the appropriate exposure, and returns the prism after the exposure is complete. If desired for either convenience or very critical vibration purposes, the prism may be locked into its out-of-the-way position. Metering may be accomplished by the camera body by setting the shutter to "T" and transferring the shutter speed to the Microflex appropriately.

The original Microflex was designed for the rangefinder S series, but is readily adapted for use with the F via the appropriate lens mount. It is not clear whether the FMF's accessories are interchangeable with the *FM series, since the appropriate camera adapter seems to be a one-piece unit. Complete Microflex systems include:

Automatic Microflex AFM (77060)

Speeds:
8-1/125 sec., B, T (manual)
600-1/100 sec. (automatic)
Power:
4 "AA" 1.5V batteries (meter and exposure control)

In general, all of Nikon's Microflex units operate in the same way, and differ only in the accessories used and degree of automation. Please refer to the FMF operating instructions.

This is the most sophisticated of the later Microflex units. It automatically sets the shutter speed based the film speeed (set on an external control box), the exposure compensation (by +/- 1/3 stops up to +/- 1 stop, also set on the box), and the meter reading from the built-in meter.

The control box (Nikon 41007) may be divided into left and right halves; the left side has manual shutter speeds selectable via a dial and a shutter release button, while the right side has the automatic controls (ASA 12-3200 dial, and exposure compensation dial). The top of the front plate has a slider switch which selects manual or automatic operation. Batteries are loaded into the right side of the box, and the top has both a flash terminal and a receptacle for the connecting cord. The AFM unit has a combined shutter/battery check button above the engraved "Nikon AFM".

Semi-Automatic Microflex EFM (77085)

Speeds:
1-1/250 sec. (manual, metered)
32-2 sec., B, T (manual)
Power:
1 1.3V mercury battery (PX625)

In general, all of Nikon's Microflex units operate in the same way, and differ only in the accessories used and degree of automation. Please refer to the FMF operating instructions.

The EFM is similar to the AFM but has no external control box. A CdS cell measures the light from the microscope and provides a signal to a metering circuit. By rotating the shutter speed ring until the needle is centered, proper exposure is set. Note that the meter will read only until 1 sec. exposures.

The EFM body has an additional ring above the shutter speed selector for selecting the film speed in use.

Standard Microflex PFM (77070)

Speeds:
1-1/250 sec., B, T (manual)

In general, all of Nikon's Microflex units operate in the same way, and differ only in the accessories used and degree of automation. Please refer to the FMF operating instructions.

This was an updated Microflex FMF, designed to be more modular and compatible with other *MF (AMF, EMF, CFMA) accessories.

Multiphot System

Available Lenses:
19mm f/2.8 (RMS thread)
35mm f/4.5 (RMS thread)
65mm f/4.5 (Leica thread)
120mm f/6.3 (Leica thread)
Available Bellows:
4x5 Bellows
300mm Bellows (for 35mm format)
600mm Bellows (for 35mm format)
Available Illumination:
diascopic (illuminated from below)
episcopic (illuminated from above)

Nikon Description:
A pair of upright columns on a heavy 500 x 500mm base holds a moveable H-shaped guide rail which provides rock-solid, vibration-free support for a Nikon F2 or Nikkormat camera, large format camera up to 4 x 5", cine-camera, bellows, or other equipment. Four different high-resolution macro lenses are available to cover magnifications ranging from 1/3x to 40x. Diascopic illuminators, condensers, bellows units, and a variety of other accessories make the Multiphot a highly versatile tool. Originally designed for macroscopic research on tissues and internal organs, it has other applications in macrophotography, photomicrography, cinemicrography, copying, and close-up photography.

Although it is far too crude to say so, the Multiphot is essentially a bellows turned on end with some nifty illumination systems and the capability to acoccomodate 35mm, 120/220 rollfilm (6x9cm), Polaroid, or 4x5 film formats. The heart of the system is the massive stand, with a base 50 x 500 x 500mm, a dampening sheet on top of the base, and two uprights which carry a H-shaped guide rail (similar to the PB-6 focussing rail), which may be moved through a travel of 285mm via an crank mounted on the uprights. Illumination systems are placed on the base, which has two levelling screws. The lower standard of the guide rail serves as a lens mount for the four Macro-Nikkors. A revolving knuckle may be mounted to tilt the axis of the bellows up to 90 degrees from vertical; it is calibrated in 2 degree increments.

Each Macro-Nikkor comes with a condenser lens which fits into the diascopic illuminator and projects the light appropriate for each lens. The 35 and 65mm lenses also have available lieberkuehn (cone-shaped) or half-reflecting mirrors which appear to fit between the front of the lens and the diascopic illuminator. An adapter ring is required for each lens to connect to the lower standard.

Either a 300 or 600mm bellows may be mounted between the lower standard and an optional F-adapter, which serves as an upper standard for the guide rail. This adapter has a male F-bayonet mount on it, so it accepts F-mount cameras directly.

The 4x5 Bellows is used with a 4x5 mirror reflex housing, which acts in a manner similar to the Microflex for 35mm systems, incorporating a side-viewing port (for a ground-glass screen) and requiring a holder which may be used with standard Graflok accessories. This holder may be interchanged with a widget called a "FM Ring", which allows the use of accessories normally used with the 77090 Cone Adapter (i.e. Polaroid 100 back, 6x9cm roll-film adapter, sheet film holder, etc.).


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