Adapter Types

The Nikon MULTIPHOT system was released in 1968. Production was discontinued in 1995, but sales continued until around the end of 1997. Since it was manufactured and sold for a long time, I believe there have been several improvements and upgrades.

There are also several types of BAYONET MOUNT ADAPTER and SCREW MOUNT ADAPTER.

BAYONET MOUNT ADAPTER, MP J93040

Early model on the left. Later model on the right. The early model is made of shiny metal. The later model is made of light metal with a matte black finish without gloss.

BAYONET MOUNT ADAPTER
MP J93040

BAYONET MOUNT ADAPTER
MP J93040

The adapter comes in several versions with different types and numbers of screws.
I guessed that the one with more screws was an older and earlier product. I also guessed that the slotted screw was an old, early product and the Phillips screw was a new, late product.

		Type 1 Early model 5 Slotted screws Weight :  39.0 g
		Type 2 Early model 3 Slotted screws Weight :  38.5 g Weight :  38.5 g
		Type 3 Early model 3 Phillips-head screws Weight :  39.0 g Weight :  39.0 g Weight :  39.0 g
		Type 4 Later model 3 Phillips-head screws Weight :  42.0 g Weight :  41.5 g Weight :  42.0 g

SCREW MOUNT ADAPTER, MP J93050

The two from the left are the early model. The one on the right is the later model. The early model is made of shiny metal. The later model is made of light metal with a matte black finish.

SCREW MOUNT ADAPTER
MP J93050

It can be divided into two types: one without screw holes on the back side, and the other with screw holes.

SCREW MOUNT ADAPTER
MP J93050

I categorized the screw mount adapters into three types.

				Type 1 Early model Slotted screws No screw holes Weight :  24.0 g
				Type 2 Early model Slotted screws Screw holes Weight :  23.5 g Weight :  23.5 g
				Type 3 Later model Phillips-head screws Screw holes Weight :  23.5 g Weight :  23.5 g

Price

The bayonet mount adapter and screw mount adapter do not appear to have been sold individually until the middle of the 1970s. They are not listed in the price list.

October 1, 1979

Nikon Microscope Price List
BAYONET MOUNT ADAPTER   4,000 Japanese YEN
SCREW MOUNT ADAPTER      2,000 Japanese YEN

April 1, 1980

Nikon Microscope Price List
BAYONET MOUNT ADAPTER   4,000 Japanese YEN
SCREW MOUNT ADAPTER      2,000 Japanese YEN

June 1, 1993

Nikon Microscope Price List
BAYONET MOUNT ADAPTER   5,000 Japanese YEN
SCREW MOUNT ADAPTER      5,000 Japanese YEN

November 26, 1997

Questions and answers at NIKON Station
BAYONET MOUNT ADAPTER   20,000 Japanese YEN
SCREW MOUNT ADAPTER      10,000 Japanese YEN

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