Important Cultural Property Japan

Japanese Old Vintage Collection

Japanese Old Vintage Collection

1.5 m Rangefinder 1936

1.5 m Rangefinder

An optical rangefinder that measures the distance to, and direction of, the target. It was used on ships.

1.5 m Rangefinder 1936

1.5 m Rangefinder 1936

1.5 m Rangefinder 1936

1.5 m Rangefinder 1936

Beautiful Japanese Landscape

3m Telephoto Lens Periscope Camera 1935

3m Telephoto Lens Periscope Camera

A periscope telephoto camera with a 3000 mm focal length lens. A reflection mirror (upper area) and a prism (bottom area) in the lens barrel were used to bend the optical axis, and the lens elements were housed in the lens barrel between the mirror and prism. Images were printed on cabinet-sized dry plates (the tripod is a replica).

3m Telephoto Lens Periscope Camera 1935

Nippon Kogaku

3000mm Telephoto Lens Periscope Camera

1500mm and 3000mm

Anemometric Theodolite 1930

A theodolite for pilot balloon observation, which measured the direction and speed of wind using a pilot balloon. It measured the direction and angle of elevation of the target (pilot balloon) from a scale. Its telescope was L-shaped for easy viewing, and the scale was illuminated for night-time observation.

Anemometric Theodolite 1930

Anemometric Theodolite 1930

Anemometric Theodolite 1930

Type 3 Drift Sight 1944

A plane drifts during a flight, resulting in a difference between the heading direction and the actual flight direction. This difference is called the "drift angle". To correctly land at the destination, the plane must fly while measuring this drift angle and correcting the flight course.
This drift sight measures the direction of movement of a target directly below the plane, and determines the drift angle by calculating the difference between that direction and the plane's heading direction.

Type 3 Drift Sight 1944

Type 3 Drift Sight 1944

Type 3 Drift Sight 1944

Type 3 Drift Sight 1944

Next Page Articles

→ Next    Chapter 4     Nikon Hand Fundus Camera

Shortcuts

Chapter 0      Top Page
Chapter 1      Nikon S Black
Chapter 2      Old NIKONOS
Chapter 3      Japanese Old Vintage Collection
Chapter 4      Nikon Hand Fundus Camera
Chapter 5      Nikon Marine
Chapter 6      NHS Nikon Journal