Porst Sound M8

marketed in 1977

sound and silent super 8 cartridge

lens: Chinon Reflex Zoom f: 1.7 \ F: 7.5-60 mm

zooming ratio: 8x

focusing: manual

macro focusing: yes

zooming: auto (with variable speed by rheostat) and manual

filter size: ?

viewfinder: single lens reflex-type with adjustable eyepiece

viewfinder information: ?

exposure: auto and manual exposure control; TTL EE, CdS photocell

film speed: auto for 25/40 and 100/160 ASA only (daylight/tungsten)

exposure compensation: +/- correction for auto

CCA filter: built-in 85A filter

ND filter: built-in Neutral Density filter, with filter control switch

filming speed: 18, 36 fps, single frame

shutter opening angle: <180 degrees

fading: auto fade-in/fade-out

interval timer: yes

sound: single-system, magnetic recording on super 8 film

recording level control: auto (High and Low) and manual

sound sockets: Microphone, Monitor

microphone bracket socket: yes

VU meter: recording level meter

cue light: yes

remote control socket: yes

cable release socket: no

movie light socket: yes

flash synchronization socket: yes

film counter: yes

handle: fixed, chamber for penlight batteries

film drive motor: DC micromotor

battery check button: yes

power source: 6 x AA batteries only

external power jack: 9 V DC, for recharge

weight: 1800 g

dimensions: 75 x 220 x 230 mm

tripod socket: 1/4"

made in Japan by Chinon