Movie Cameras

8mm Movie Camera

Auto Zoom 318M

Auto Zoom 318M

Auto Zoom 318M

  • Japan
  • Americas
  • Europe, Asia, Oceania
  • Outline
  • Specifications
Marketed March1972
Original Price 25,000yen

This affordably priced model had a newly designed 3x zoom lens and a macro shooting mechanism. A compact total reflection mirror was applied to realize a bright single-lens-reflex viewfinder. Very accurate exposure was assured with a voltage stabilized exposure measuring circuit using a monolithic IC, the world’s first.

It was lightweight (only 470 grams) and easy to handle, with a plastic exterior, drop-in cartridge loading and a folding grip, which folded forward under the lens.

A black model was also marketed outside Japan.

Type Super 8 type 8mm movie camera
Image Size 4.2 x 5.7 mm (Projection image size: 4 x 5.4mm)
Film Super 8 film cartridge
Lens Focal Length/Speed 10 – 30mm f/1.8 (11 elements in 9 groups, including 3 new type glass elements). Spectra coating.
Zooming Ratio 3x
Focusing Manual (Focusing knob rotating zone focusing, front lens group linear extension system), 1.5 m to infinity, snap shot marks for NEAR at 3.5 m, FAR at 14 m
Macro Shooting Close distance shooting by turning the zoom ring to “M.” Close-up shooting at 22.5 cm from the film plane mark is possible. Field of view: 75 x 104 mm
Zooming Power zooming (Approx. 5.5 sec.) coupled to film drive during shutter release and manual zooming with the zooming ring.
Filter Size 40 mm
Viewfinder Type Single-lens reflex type
Rangefinder None. Guess focusing. Snap marks.
Dioptric Adjustment -3 to +1 diopter
Viewfinder Information Under exposure warning mark. Viewfinder screen turns to yellow for macro shooting.
Exposure Control Type Automatic aperture setting coupled to loaded film speed and shooting speed.
Exposure Mater TTL measuring CdS meter
Metering Range ISO 160, f/1.8, 18 fps – ISO 25, f/22, 18 fps
Film Speed Automatic ISO setting by film cartridge
Tungsten type film: ISO 40 and 160
Daylight type film: ISO 25 and 100
CCA Filter A Color Conversion filter A is built-in to use tungsten type film under daylight. The CCA filter is automatically cancelled with loading of a daylight type film cartridge. Manual cancellation of the CCA filter is possible with an adapter.
Manual Aperture Control Not available.
Film Drive Type Power filming by a high performance micro-motor
Filming Speed 18 fps and single frame
Power Source Three AA batteries for film drive, zooming and TTL exposure metering.
Battery Life Sufficient power for 7 film cartridges with manganese batteries and 14 film cartridges with alkaline manganese batteries under normal temperature
Footage Counter Counts up. Automatic resetting by unloading of a cartridge.
Battery Check Not available.
Shutter Shutter Opening 160 degrees
Release Socket Socket for single frame.
Remote Control Not available.
Grip Folding type. Also prevents unwilled shutter release.
Dimensions (W x H x D) 60 x 80.6 x 172 mm
Weight 470 g (Body only)