Movie Cameras

8mm Movie Camera

312XL-S

312XL-S

312XL-S

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  • Outline
  • Specifications
Marketed November 1977
Original Price 68,500 yen

This was a sister model of the 514XL-S. It had an external metering system, replacing TTL metering, and some functions were dropped from those of the 514XL-S to lower the costs. A newly designed high-speed 3x f/1.2 zoom lens with macro function was applied. This lens had a built-in foldable rubber lens hood.

The new compact Canon Boom Microphone BM50 was developed for this model. The Canon Boom Microphone BM70 marketed together with the 514XL-S could also be used with this model.

Type Sound and silent Super 8 type 8mm movie camera
Image Size 4.2 x 5.7 mm (Projection image size: 4 x 5.4mm)
Film Sound or silent Super 8 film cartridge
Lens Focal Length/Speed 8.5 – 25.5mm f/1.2 (13 elements in 10 groups). Spectra-coating. Built-in rubber hood.
Zooming Ratio 3x
Focusing Manual (Front lens group rotating method), 1.2 m to infinity
Macro Shooting Close distance shooting by turning the zooming/macro setting lever to “Macro” at wide-angle end.Close-up shooting distance from the film plane mark when the focusing ring is set at infinity is 215 mm and field of view is 84 x 118 mm.
Zooming Power zooming (Approx. 6 sec.) coupled to film drive and manual zooming with zooming lever.
Filter Size 43 mm
Viewfinder Type Single-lens reflex type (Built-in eyecup)
Rangefinder Not available (Guess focusing)
Dioptric Adjustment -4 to +2 diopter
Viewfinder Information Over/under exposure warnings, film transport indicator, battery check/film end precaution lamp, recording level indication and macro indication
Exposure Control Type Outside metering EE with a CdS exposure meter. Automatic aperture setting coupled to loaded film speed and filming speed.
Metering Range ISO 250, f/1.2, 18 fps – ISO25, f/45, 18fps
Film Speed Automatic ISO setting by film cartridge
Tungsten type film: ISO 40, 160 and 250
Daylight type film: ISO 25, 100 and 160
CCA Filter A Color Conversion filter A is built-in. The CCA filter is automatically cancelled with loading of a daylight type film cartridge. Manual cancellation of the CCA filter is possible.
Manual Aperture Control For exposure compensation
Film Drive Type Power filming by high performance DC micro-motors
Filming Speed 18 fps
Footage Counter Counts up. Automatic resetting by unloading of a cartridge.
Film End Precaution A warning lamp in the viewfinder lights up approx. 2 ft. before film-end.
Shutter Shutter Opening 220 degrees
Release System Magnet release system
Sound Recording System Type Magnetic recording system on Super 8 sound film (continuous film drive by capstan drive)
Microphone Input 3.5 mm diameter mini jack. Input impedance: Approx. 3 K ohm. Minimum input sensitivity: -80 dB (0 dB=1 V)
Accessory Microphone Impedance: 500 ohm. Dynamic microphone sensitivity: -78 dB (0 dB=1 V/µbar 1 KHz)
Aux. Input 3.5 mm diameter mini jack. Minimum input impedance: Approx 100 K ohm. Minimum input sensitivity: -20 dB (0 dB=1 V)
Mixing Mixing of microphone input and aux. input is available.
Sound Monitor An earphone and recording level indication in the viewfinder.
Audio Level Control Automatic level control (ALC) circuit is built-in. Auto and low level positions with lock.
Sound Fading Not available
Tone Control Two settings of soft and clear
Earphone Output Usable earphone impedance: 8 ohm
Remote Control 2.5 mm diameter mini jack. Remote control is enabled with a remote control switch or microphone’s remote control switch.
Power Source Six AA batteries in the grip for film drive, power zooming, exposure metering and sound recording. External power pack (9 V DC) is available.
Battery Life Sufficient power for approx. 10 film cartridges under normal temperature
Battery Check Push button and lamp (LED) in the viewfinder
Main Switch Three way switch of on, off and running lock. A red warning mark appears at R and RL position to warn that power is on.
Grip Folding type. Contains batteries.
Others Cue light (red LED), accessory shoe (for Boom microphone), external power jack.
Dimensions (W x H x D) 64 x 136 x 195 mm
Weight 1,310 g (Body only), 1,420 g (Including batteries)