Ringfoto Extra

marketed in 197?

silent super 8 cartridge

lens: Cinetor Reflex Zoom f/1.8 F:9.5-32 mm

zooming ratio: 3.4x

focusing: manual

zooming: auto and manual

filter size: ?

viewfinder: single-lens reflex with adjustable eyepiece

viewfinder information: external window for f/stop meter

exposure: auto and manual exposure control; TTL Electric Eye

film speed: auto for 25/40 ASA (daylight/tungsten)

CCA filter: built-in 85A filter; coupled with movie light socket,manual cancelationwith filter key

filming speed: 18, 24 fps

shutter opening angle: <180 degrees

sound: no

remote control socket: ?

cable release socket: ?

movie light socket: 1/4"

handle: fixed, chamber for penlight batteries

battery check button: yes

film counter: yes

film drive motor: DC micromotor

battery check button: yes

power source: 4 x AA batteries \ 1 x button cell for light meter

weight: ?

dimensions: ?

made in Japan by Thor Optical