marketed in 197?
sound and silent super 8 cartridge
lens: Shinkor Zoom f: 1.1 \ F: 10.5-30 mm
zooming ratio: 2.8x
focusing: manual,1.5 to infinity
macro focusing: 0.1 to1.5 m
zooming: auto and manual
filter size: ?
viewfinder: single-lens reflex with adjustable eyepiece
viewfinder information: ?
exposure: auto and manual exposure control; TTL EE, CdS cell
film speed: auto for 25/40 and 100/160 ASA only (daylight tungsten)
ASA notching: 1-pin
CCA filter: built-in 85A filter,
filming speed: 18 fps, single frame
shutter opening angle: >180 degrees, eXisting Light system
sound: single-system, magnetic recording on super 8 film
recording level control: auto
sound sockets: Microphone, Monitor
remote control socket: yes
cable release socket: no
movie light socket: screw type
accessory shoe: yes
handle: fixed, chamber for penlight batteries
battery test button: yes
film drive motor: DC micromotor
power source: 6 x AA batteries only
weight: 1200 g
dimensions: 65 x 230 x 205 mm
tripod socket: 1/4"
made in Japan by Shinsei Optical
It is same as Nalcom Synchro Sound 311 SL.